CVE-2024-25355
📋 TL;DR
s3-url-parser version 1.0.3 contains a denial of service vulnerability in its regexes component that allows attackers to cause resource exhaustion and service unavailability. This affects any application or service using this vulnerable version of the s3-url-parser library. The vulnerability can be triggered by specially crafted input to the URL parsing functionality.
💻 Affected Systems
- s3-url-parser
⚠️ 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
Complete service unavailability due to resource exhaustion (CPU/memory) leading to denial of service for all users of the affected application.
Likely Case
Service degradation or temporary unavailability affecting application performance and user experience.
If Mitigated
Minimal impact with proper input validation, rate limiting, and resource monitoring in place.
🎯 Exploit Status
The vulnerability is in regex processing which can be exploited by sending specially crafted URLs to trigger catastrophic backtracking or excessive resource consumption.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.4 or later
Vendor Advisory: https://github.com/6en6ar/s3-url-parser/security/advisories
Restart Required: Yes
Instructions:
1. Update s3-url-parser to version 1.0.4 or later using npm update s3-url-parser. 2. Restart any services or applications using the library. 3. Verify the update was successful by checking the package.json or running npm list s3-url-parser.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for URL inputs before passing to s3-url-parser
Rate Limiting
allImplement rate limiting on URL parsing endpoints to prevent DoS attacks
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block suspicious URL patterns
- Deploy resource monitoring and automatic restart mechanisms for affected services
🔍 How to Verify
Check if Vulnerable:
Check package.json or run npm list s3-url-parser to see if version 1.0.3 is installedCheck Version:
npm list s3-url-parser | grep s3-url-parserVerify Fix Applied:
Verify s3-url-parser version is 1.0.4 or later using npm list s3-url-parser📡 Detection & Monitoring
Log Indicators:
- High CPU usage spikes
- Memory exhaustion warnings
- Application crashes or restarts
- Slow response times from URL parsing functions
Network Indicators:
- Unusual volume of URL parsing requests
- Patterns of malformed URLs being sent to services
SIEM Query:
source="application.logs" AND ("high cpu" OR "memory exhaustion" OR "s3-url-parser")