CVE-2024-27299
📋 TL;DR
A SQL injection vulnerability in phpMyFAQ's 'Add News' functionality allows authenticated users with news editing permissions to execute arbitrary SQL commands. This can lead to data exfiltration, account takeover, and potentially remote code execution. The vulnerability affects phpMyFAQ version 3.2.5.
💻 Affected Systems
- phpMyFAQ
📦 What is this software?
Phpmyfaq by Phpmyfaq
⚠️ Risk & Real-World Impact
Worst Case
Attackers achieve remote code execution, compromise the entire database, and potentially take over the server hosting phpMyFAQ.
Likely Case
Authenticated attackers exfiltrate sensitive data including user credentials, modify/delete FAQ content, and escalate privileges.
If Mitigated
With proper input validation and parameterized queries, SQL injection attempts are blocked and logged without successful exploitation.
🎯 Exploit Status
Exploitation requires authenticated access but SQL injection payloads are straightforward. Public proof-of-concept exists in advisory references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.6
Vendor Advisory: https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-qgxx-4xv5-6hcw
Restart Required: No
Instructions:
1. Backup your phpMyFAQ installation and database. 2. Download phpMyFAQ 3.2.6 from the official repository. 3. Replace all files with the new version, preserving configuration files. 4. Verify the installation works correctly.
🔧 Temporary Workarounds
Disable News Functionality
allTemporarily disable the 'Add News' functionality to prevent exploitation while planning upgrade.
Modify phpMyFAQ configuration to remove news editing permissions from all users
Input Validation Enhancement
allAdd additional email validation and escaping in the authorEmail field processing code.
Implement parameterized queries and proper escaping for the authorEmail field in news handling code
🧯 If You Can't Patch
- Restrict user permissions to only essential users who need 'Add News' functionality
- Implement web application firewall (WAF) rules to block SQL injection patterns in the news endpoint
🔍 How to Verify
Check if Vulnerable:
Check if running phpMyFAQ version 3.2.5 by examining the version file or admin interface.Check Version:
Check the version.php file or admin dashboard for version informationVerify Fix Applied:
After upgrading to 3.2.6, verify the fix by checking the commit 1b68a5f89fb65996c56285fa636b818de8608011 is applied in your installation.📡 Detection & Monitoring
Log Indicators:
- SQL error messages in application logs
- Unusual database queries from phpMyFAQ application
- Multiple failed login attempts followed by news creation
Network Indicators:
- SQL injection patterns in POST requests to news endpoints
- Unusual outbound database connections
SIEM Query:
source="phpmyfaq.log" AND ("SQL syntax" OR "authorEmail" OR "Add News")🔗 References
- https://drive.google.com/drive/folders/1BFL8GHIBxSUxu0TneYf66KjFA0A4RZga?usp=sharing
- https://github.com/thorsten/phpMyFAQ/commit/1b68a5f89fb65996c56285fa636b818de8608011
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-qgxx-4xv5-6hcw
- https://drive.google.com/drive/folders/1BFL8GHIBxSUxu0TneYf66KjFA0A4RZga?usp=sharing
- https://github.com/thorsten/phpMyFAQ/commit/1b68a5f89fb65996c56285fa636b818de8608011
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-qgxx-4xv5-6hcw
