CVE-2024-25181
📋 TL;DR
CVE-2024-25181 is a critical vulnerability in givanz VvvebJs 1.7.2 that allows attackers to perform Server-Side Request Forgery (SSRF) and read arbitrary files on the server. This occurs due to improper validation of user-supplied URLs in the save.php file. Any system running the vulnerable version of VvvebJs is affected.
💻 Affected Systems
- givanz VvvebJs
📦 What is this software?
Vvvebjs by Vvveb
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise through SSRF to internal services, sensitive file disclosure, and potential remote code execution.
Likely Case
Unauthorized access to internal network resources, sensitive file reading, and data exfiltration.
If Mitigated
Limited impact with proper network segmentation and file permission restrictions.
🎯 Exploit Status
Simple HTTP requests can trigger the vulnerability. Public proof-of-concept code is available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Consider removing or replacing VvvebJs with alternative software.
🔧 Temporary Workarounds
Disable save.php
allRemove or restrict access to the vulnerable save.php file.
mv /path/to/vvvebjs/save.php /path/to/vvvebjs/save.php.disabled
Input validation
allAdd URL validation to prevent SSRF and file path traversal.
🧯 If You Can't Patch
- Implement strict network segmentation to limit SSRF impact
- Apply strict file permissions and disable unnecessary PHP functions
🔍 How to Verify
Check if Vulnerable:
Check if save.php exists and contains file_get_contents calls without proper URL validation.Check Version:
Check VvvebJs version in documentation or configuration files.Verify Fix Applied:
Verify save.php is removed/disabled or contains proper input validation.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns
- HTTP requests to save.php with URL parameters
- SSRF attempts to internal services
Network Indicators:
- Outbound connections from web server to internal services
- Unusual file read patterns
SIEM Query:
source="web_logs" AND uri="/save.php" AND (url_parameter="*://*" OR file_parameter="*../*")