Skip to content

πŸ›‘οΈ Sentinel: [CRITICAL] Fix command injection vulnerability via execSync#100

Open
Donach wants to merge 1 commit into
cfx/android-hermes-clientfrom
sentinel-fix-execsync-command-injection-11576370676561460358
Open

πŸ›‘οΈ Sentinel: [CRITICAL] Fix command injection vulnerability via execSync#100
Donach wants to merge 1 commit into
cfx/android-hermes-clientfrom
sentinel-fix-execsync-command-injection-11576370676561460358

Conversation

@Donach

@Donach Donach commented Jun 22, 2026

Copy link
Copy Markdown

🚨 Severity: CRITICAL
πŸ’‘ Vulnerability: Command injection in terminals.ts, sync-unix.ts, and zellij.ts. The code used execSync with dynamic string interpolation to execute shell commands.
🎯 Impact: Attackers could supply manipulated inputs (such as an environment variable or username) to execute arbitrary commands on the system.
πŸ”§ Fix: Replaced execSync with execFileSync across all affected sites. For variables like sudoUser, an array of arguments including -- is used to prevent option injection.
βœ… Verification: Ran test suite and validated correct command execution for chown, getent passwd, and whoami.


PR created automatically by Jules for task 11576370676561460358 started by @Donach

Replaced usage of `execSync` with `execFileSync` in scenarios where dynamic strings
(such as `chownTo` in terminals.ts or `sudoUser` in sync-unix.ts) were concatenated
into shell commands. Since `execSync` executes in a `/bin/sh` shell, it allows
command injection if the user-provided variables are manipulated. `execFileSync`
avoids this by passing variables directly as arguments to the executable.

Co-authored-by: Donach <39565367+Donach@users.noreply.github.com>
@google-labs-jules

Copy link
Copy Markdown

πŸ‘‹ Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a πŸ‘€ emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.


For security, I will only act on instructions from the user who triggered this task.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant