2024-11-28
Platform: GitHub CLI
Version: Prior to 2.63.0
Vulnerability: Token Leak
Severity: Critical
Date: November 28, 2024 (based on search results)
What Undercode Says:
This critical vulnerability in GitHub CLI affects users who clone repositories containing git submodules hosted outside of GitHub.com and ghe.com. The issue lies in how certain `gh` commands (like `gh repo clone`) interact with the `git` credential helper. Prior to version 2.63.0, these commands could leak authentication tokens to unintended submodule hosts.
An attacker could potentially exploit this vulnerability to steal these leaked tokens and gain access to privileged resources. Upgrading to GitHub CLI version 2.63.0 is essential to address this issue. Additionally, revoking any tokens used with the CLI and reviewing security logs for suspicious activity are recommended mitigation steps.
Here’s a breakdown of the key points:
Vulnerable versions: GitHub CLI versions before 2.63.0
Cause: Leaking of authentication tokens due to how `gh` commands interact with `git` credential helper for submodules outside GitHub.com and ghe.com
Impact: Potential unauthorized access to privileged resources by attackers who steal leaked tokens
Fix: Upgrade to GitHub CLI version 2.63.0
Additional Mitigation: Revoke used tokens and review security logs
By taking these steps, you can protect yourself from this critical vulnerability and ensure the security of your GitHub repositories.
References:
Reported By: Github.com
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