CVE-2018-12984
📋 TL;DR
Hycus CMS 1.0.4 contains an authentication bypass vulnerability that allows attackers to log in without valid credentials using SQL injection in the login form. This affects all organizations running Hycus CMS 1.0.4. Attackers can gain administrative access to the CMS.
💻 Affected Systems
- Hycus CMS
📦 What is this software?
Hycus Cms by Hycus Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the CMS with administrative privileges, allowing data theft, defacement, or installation of backdoors for persistent access.
Likely Case
Unauthorized administrative access leading to content manipulation, user data exposure, and potential lateral movement within the network.
If Mitigated
Limited impact if strong network segmentation, web application firewalls, and monitoring are in place to detect and block exploitation attempts.
🎯 Exploit Status
Exploit code is publicly available and requires no authentication. Attackers can use simple SQL injection payloads like '=' 'OR' in login fields.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch is available. Consider upgrading to a newer version if available, or implement workarounds and monitoring.
🔧 Temporary Workarounds
Implement Input Validation and Sanitization
allAdd server-side validation to reject SQL injection attempts in login fields.
Modify login.php to sanitize user input using prepared statements or parameterized queries.
Deploy Web Application Firewall (WAF)
allConfigure WAF rules to block SQL injection patterns in login requests.
Add WAF rule: Detect and block requests containing '=' 'OR' in login parameters.
🧯 If You Can't Patch
- Isolate the CMS behind a reverse proxy with strict access controls and monitoring.
- Disable the CMS if not essential, or migrate to a supported alternative.
🔍 How to Verify
Check if Vulnerable:
Attempt to log in using SQL injection payload like username: '=' 'OR' and any password.Check Version:
Check the CMS version in the admin panel or configuration files.Verify Fix Applied:
Test the same exploit attempt; it should fail with proper error handling or rejection.📡 Detection & Monitoring
Log Indicators:
- Failed login attempts with SQL patterns like '=' 'OR' in username/password fields.
- Successful logins from unusual IP addresses or at odd hours.
Network Indicators:
- HTTP POST requests to login.php with SQL injection payloads in parameters.
SIEM Query:
source="web_logs" AND (url="/login.php" OR url="/admin/login.php") AND (request_body LIKE "%=' 'OR'%" OR request_body LIKE "%'OR'%");