CVE-2022-47002
📋 TL;DR
This vulnerability allows attackers to bypass authentication in Masa CMS by exploiting a flaw in the Remember Me function. Attackers can gain unauthorized access to administrative panels and user accounts via crafted web requests. Organizations running affected Masa CMS versions are at risk.
💻 Affected Systems
- Masa CMS
📦 What is this software?
Masacms by Masacms
Masacms by Masacms
Masacms by Masacms
Masacms by Masacms
Masacms by Masacms
Masacms by Masacms
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the CMS instance, allowing attackers to create administrative accounts, modify content, inject malicious code, and potentially pivot to other systems.
Likely Case
Unauthorized access to administrative functions leading to content manipulation, data exposure, and potential malware injection.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
Exploitation requires sending crafted requests to the authentication endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.3.10
Vendor Advisory: https://github.com/MasaCMS/MasaCMS/releases/tag/7.3.10
Restart Required: No
Instructions:
1. Backup your Masa CMS installation and database. 2. Download version 7.3.10 from the official repository. 3. Replace affected files with patched versions. 4. Verify functionality.
🔧 Temporary Workarounds
Disable Remember Me Function
allTemporarily disable the vulnerable Remember Me functionality to prevent exploitation.
Modify configuration to disable 'remember me' feature in authentication settings
Web Application Firewall Rules
allImplement WAF rules to block suspicious authentication requests.
Add rules to block requests with crafted authentication parameters
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to the CMS interface
- Enable detailed logging and monitoring for authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check if running Masa CMS version 7.2, 7.3, or 7.4-beta. Review authentication logs for unusual patterns.Check Version:
Check Masa CMS admin panel or version file in installation directoryVerify Fix Applied:
Verify version is 7.3.10 or later. Test authentication functionality to ensure Remember Me works without vulnerability.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Multiple failed login attempts followed by successful access
- Requests with crafted authentication parameters
Network Indicators:
- Unusual traffic to authentication endpoints
- Requests bypassing normal authentication flow
SIEM Query:
source="masa_cms" AND (event_type="authentication" AND (status="success" AND previous_status="failed"))🔗 References
- https://github.com/MasaCMS/MasaCMS/releases/tag/7.3.10
- https://www.hoyahaxa.com/2023/01/preliminary-security-advisory.html
- https://www.hoyahaxa.com/2023/03/authentication-bypass-mura-masa.html
- https://github.com/MasaCMS/MasaCMS/releases/tag/7.3.10
- https://www.hoyahaxa.com/2023/01/preliminary-security-advisory.html
- https://www.hoyahaxa.com/2023/03/authentication-bypass-mura-masa.html
