CVE-2024-39017
📋 TL;DR
CVE-2024-39017 is a prototype pollution vulnerability in agreejs shared v0.0.1 that allows attackers to inject arbitrary properties into object prototypes. This can lead to remote code execution or denial of service. Anyone using the vulnerable version of agreejs shared is affected.
💻 Affected Systems
- agreejs shared
⚠️ 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 persistent backdoor installation.
Likely Case
Denial of service through application crashes or instability, potentially leading to service disruption.
If Mitigated
Limited impact if input validation and sanitization prevent malicious payloads from reaching vulnerable functions.
🎯 Exploit Status
Proof of concept available in GitHub gist; exploitation requires attacker to control input to mergeInternalComponents function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch exists; upgrade to a non-vulnerable version if available, or implement workarounds.
🔧 Temporary Workarounds
Input validation and sanitization
allImplement strict input validation to prevent malicious objects from reaching mergeInternalComponents function.
Object.freeze on Object.prototype
allPrevent prototype pollution by freezing Object.prototype to block property injection.
Object.freeze(Object.prototype);
🧯 If You Can't Patch
- Remove or disable agreejs shared v0.0.1 from production environments.
- Implement network segmentation and strict access controls to limit exposure.
🔍 How to Verify
Check if Vulnerable:
Check package.json or dependency files for 'agreejs shared' version 0.0.1.Check Version:
npm list agreejs-shared or check package.json for versionVerify Fix Applied:
Verify that agreejs shared is either removed or updated to a non-vulnerable version.📡 Detection & Monitoring
Log Indicators:
- Unusual application crashes
- Unexpected property assignments in object logs
- Error messages related to prototype pollution
Network Indicators:
- Unusual HTTP requests containing nested objects
- Requests to mergeInternalComponents endpoint with suspicious payloads
SIEM Query:
search for 'mergeInternalComponents' in application logs with suspicious payload patterns