CVE-2025-59831
📋 TL;DR
CVE-2025-59831 is a command injection vulnerability in git-commiters Node.js module that allows attackers to execute arbitrary commands on the host system by injecting malicious input into the gitCommiters() function. This affects any application using vulnerable versions of git-commiters that accepts user-controlled input for options like cwd or revisionRange. The vulnerability is particularly dangerous in web applications or CI/CD pipelines that process user-supplied git repository data.
💻 Affected Systems
- git-commiters Node.js module
📦 What is this software?
Git Commiters by Riceball
⚠️ Risk & Real-World Impact
Worst Case
Full remote code execution with the privileges of the Node.js process, potentially leading to complete system compromise, data exfiltration, or lateral movement within the network.
Likely Case
Arbitrary command execution allowing attackers to read sensitive files, modify data, or establish persistence on affected systems.
If Mitigated
Limited impact if input validation and proper security controls prevent malicious input from reaching the vulnerable function.
🎯 Exploit Status
Command injection vulnerabilities are trivial to exploit once the attack vector is identified. No public PoC exists yet but the vulnerability is straightforward to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.1.2
Vendor Advisory: https://github.com/snowyu/git-commiters.js/security/advisories/GHSA-g38c-wxjf-xrh6
Restart Required: Yes
Instructions:
1. Update package.json to require git-commiters version 0.1.2 or higher. 2. Run 'npm update git-commiters' or 'yarn upgrade git-commiters'. 3. Restart your Node.js application to load the patched version.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for all parameters passed to gitCommiters() function, particularly cwd and revisionRange options.
// Example validation in JavaScript
function validateInput(input) {
// Reject any input containing shell metacharacters
const dangerousChars = /[;&|`$(){}[\]<>]/;
if (dangerousChars.test(input)) {
throw new Error('Invalid input detected');
}
return input;
}
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user-controlled data before passing to gitCommiters() function
- Run the Node.js application with minimal privileges and in a sandboxed/containerized environment
🔍 How to Verify
Check if Vulnerable:
Check package.json or package-lock.json for git-commiters version. If version is less than 0.1.2, the system is vulnerable.Check Version:
npm list git-commiters | grep git-commitersVerify Fix Applied:
After updating, verify that git-commiters version is 0.1.2 or higher using 'npm list git-commiters' or check package-lock.json.📡 Detection & Monitoring
Log Indicators:
- Unusual git command executions with unexpected arguments
- Process spawn events with suspicious command-line arguments from Node.js processes
- Error logs showing failed command execution with unusual parameters
Network Indicators:
- Outbound connections from Node.js processes to unexpected destinations
- DNS queries for command-and-control domains from application servers
SIEM Query:
process.name:node AND (process.args:*git* AND process.args:*[;&|`$(){}]* OR process.parent.name:node AND process.name:sh)