CVE-2024-57077
📋 TL;DR
CVE-2024-57077 is a prototype pollution vulnerability in utils-extend library version 1.0.8 that allows attackers to modify JavaScript object prototypes. This can lead to denial of service, unexpected behavior, or potentially remote code execution in applications using this library. Any application or service using utils-extend 1.0.8 is affected.
💻 Affected Systems
- utils-extend
⚠️ 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 through prototype pollution leading to complete system compromise, data theft, or lateral movement within the network.
Likely Case
Denial of service through application crashes or unexpected behavior modification, potentially leading to data corruption or service disruption.
If Mitigated
Limited impact with proper input validation and sanitization, though prototype pollution remains a serious vulnerability class.
🎯 Exploit Status
Proof of concept available in the referenced GitHub gist. Exploitation requires attacker to control input to the extend function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative libraries or implementing workarounds.
🔧 Temporary Workarounds
Input validation and sanitization
allImplement strict input validation to prevent prototype pollution payloads from reaching the extend function.
Use Object.create(null) for target objects
allCreate target objects without prototype chain to prevent pollution.
const safeObject = Object.create(null);
lib.extend(safeObject, userInput);
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user inputs passed to extend function
- Use WAF rules to detect and block prototype pollution patterns in HTTP requests
🔍 How to Verify
Check if Vulnerable:
Check package.json for utils-extend version 1.0.8 or examine node_modules/utils-extend/package.jsonCheck Version:
npm list utils-extendVerify Fix Applied:
Verify utils-extend is not version 1.0.8 or has been removed/replaced📡 Detection & Monitoring
Log Indicators:
- Unusual application crashes
- Unexpected property modifications in logs
- Error messages related to prototype pollution
Network Indicators:
- HTTP requests containing __proto__ or constructor properties in payloads
SIEM Query:
source="application.logs" AND ("__proto__" OR "constructor" OR "prototype pollution")