CVE-2023-5865
📋 TL;DR
This vulnerability in phpMyFAQ allows attackers to maintain access to user sessions beyond intended expiration times. Attackers can hijack sessions to impersonate legitimate users, potentially accessing sensitive data or performing unauthorized actions. All users running phpMyFAQ versions prior to 3.2.2 are affected.
💻 Affected Systems
- phpMyFAQ
📦 What is this software?
Phpmyfaq by Phpmyfaq
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain persistent administrative access, leading to complete system compromise, data theft, or unauthorized content modification.
Likely Case
Session hijacking allowing unauthorized access to user accounts, potentially exposing sensitive FAQ data or user information.
If Mitigated
Limited impact with proper session management controls, but still presents authentication bypass risk.
🎯 Exploit Status
Exploitation requires existing user sessions but is straightforward once session tokens are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.2
Vendor Advisory: https://github.com/thorsten/phpmyfaq/commit/5f43786f52c3d517e7665abd25d534e180e08dc5
Restart Required: No
Instructions:
1. Backup your current installation. 2. Download phpMyFAQ 3.2.2 or later from official repository. 3. Replace affected files with patched versions. 4. Verify session handling is functioning correctly.
🔧 Temporary Workarounds
Manual Session Timeout Reduction
allManually configure shorter session timeout values in phpMyFAQ configuration
Edit config/configuration.php and reduce session.gc_maxlifetime and session.cookie_lifetime values
🧯 If You Can't Patch
- Implement additional session validation at application layer
- Deploy WAF rules to detect and block suspicious session activity
🔍 How to Verify
Check if Vulnerable:
Check phpMyFAQ version in admin panel or by examining version.php fileCheck Version:
grep 'PMF_VERSION' version.phpVerify Fix Applied:
Verify version is 3.2.2 or later and test session expiration functionality📡 Detection & Monitoring
Log Indicators:
- Multiple successful logins from same session ID over extended periods
- Session IDs not expiring after logout
Network Indicators:
- Unusual session duration patterns
- Multiple requests with same session token over hours/days
SIEM Query:
source="phpmyfaq" AND (event="session_start" OR event="session_destroy") | stats count by session_id | where count > threshold