CVE-2022-23898
📋 TL;DR
MCMS v5.2.5 contains a SQL injection vulnerability in the categoryId parameter that allows attackers to execute arbitrary SQL commands. This affects all systems running the vulnerable version of MCMS content management software. Attackers can potentially read, modify, or delete database contents.
💻 Affected Systems
- MCMS (MingSoft Content Management System)
📦 What is this software?
Mcms by Mingsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized data access, privilege escalation, or database manipulation leading to content modification or user data exposure.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
SQL injection via categoryId parameter is straightforward to exploit with basic SQL knowledge
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v5.2.6 or later
Vendor Advisory: https://github.com/ming-soft/MCMS/issues/62
Restart Required: Yes
Instructions:
1. Backup database and application files. 2. Download latest MCMS version from official repository. 3. Replace vulnerable files with patched versions. 4. Restart web application server. 5. Verify fix by testing categoryId parameter.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to reject malicious categoryId values
Implement parameterized queries or prepared statements for all categoryId database interactions
WAF Rule
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: deny requests containing SQL keywords in categoryId parameter
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries for categoryId parameter
- Restrict database user permissions to minimum required privileges
🔍 How to Verify
Check if Vulnerable:
Test categoryId parameter with SQL injection payloads like ' OR '1'='1Check Version:
Check MCMS version in admin panel or application configuration filesVerify Fix Applied:
Test categoryId parameter with same payloads after patch - should return error or no data📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts after categoryId manipulation
- Database queries with unusual syntax from web server IP
Network Indicators:
- HTTP requests with SQL keywords in categoryId parameter
- Abnormal database query patterns from application server
SIEM Query:
source="web_logs" AND (categoryId CONTAINS "UNION" OR categoryId CONTAINS "SELECT" OR categoryId CONTAINS "OR 1=1")