CVE-2024-39016
📋 TL;DR
CVE-2024-39016 is a prototype pollution vulnerability in che3vinci c3/utils-1 library version 1.0.131 that allows attackers to inject arbitrary properties into object prototypes. This can lead to remote code execution or denial of service. Applications using this vulnerable library version are affected.
💻 Affected Systems
- che3vinci c3/utils-1
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Denial of service through application crashes or instability, potentially leading to data corruption.
If Mitigated
Limited impact if input validation and sanitization are implemented, though prototype pollution remains dangerous.
🎯 Exploit Status
Proof of concept available in GitHub gists. Exploitation requires attacker to control input to the assign function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.132 or later
Vendor Advisory: https://github.com/che3vinci/c3-utils-1/security/advisories
Restart Required: Yes
Instructions:
1. Update package.json to use c3/utils-1 version 1.0.132 or higher. 2. Run npm update c3/utils-1. 3. Restart all affected applications. 4. Test functionality after update.
🔧 Temporary Workarounds
Input validation and sanitization
allImplement strict input validation for objects passed to the assign function
Object.freeze on prototypes
allFreeze Object.prototype to prevent prototype pollution
Object.freeze(Object.prototype);
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user-controlled objects
- Use security monitoring to detect unusual prototype modifications or application crashes
🔍 How to Verify
Check if Vulnerable:
Check package.json or package-lock.json for c3/utils-1 version 1.0.131Check Version:
npm list c3/utils-1Verify Fix Applied:
Verify package.json shows c3/utils-1 version 1.0.132 or higher and test application functionality📡 Detection & Monitoring
Log Indicators:
- Application crashes
- Unusual error messages related to object prototypes
- Unexpected property assignments
Network Indicators:
- Unusual HTTP requests with crafted object payloads
- Requests to endpoints using the assign function
SIEM Query:
source="application.logs" AND ("prototype pollution" OR "assign function" OR "CVE-2024-39016")