CVE-2024-30938
📋 TL;DR
This SQL injection vulnerability in SEMCMS v4.8 allows remote attackers to extract sensitive database information by manipulating the ID parameter in SEMCMS_User.php. Any organization using the vulnerable version of this content management system is affected, potentially exposing user data, credentials, and other sensitive information stored in the database.
💻 Affected Systems
- SEMCMS
📦 What is this software?
Semcms by Sem Cms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of all stored data including user credentials, personal information, and potentially administrative access to the entire system.
Likely Case
Extraction of sensitive user data, administrative credentials, and other database contents that could lead to further system compromise.
If Mitigated
Limited information disclosure if proper input validation and database permissions are in place, but still significant risk.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized. The public disclosure includes technical details that facilitate exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check for official vendor patch or updated version. 2. If available, backup current installation. 3. Apply patch or upgrade to fixed version. 4. Test functionality after patching.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the ID parameter before processing
Modify SEMCMS_User.php to validate ID parameter as integer: if(!is_numeric($_GET['ID'])) { die('Invalid input'); }
Web Application Firewall
allDeploy WAF rules to block SQL injection attempts
Add WAF rule: SecRule ARGS:ID "@rx [^0-9]" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
🧯 If You Can't Patch
- Restrict access to SEMCMS_User.php component using network controls or authentication
- Implement database-level protections: use least privilege accounts, enable query logging, and monitor for suspicious database activity
🔍 How to Verify
Check if Vulnerable:
Test the ID parameter in SEMCMS_User.php with SQL injection payloads like: SEMCMS_User.php?ID=1' OR '1'='1Check Version:
Check SEMCMS version in admin panel or configuration filesVerify Fix Applied:
Test with the same payloads after applying fixes - should return error or no sensitive data📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple requests to SEMCMS_User.php with malformed ID parameters
- Database query errors containing SQL syntax
Network Indicators:
- HTTP requests to SEMCMS_User.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri="*SEMCMS_User.php*" AND (param="*' OR*" OR param="*UNION*" OR param="*SELECT*" OR param="*--*" OR param="*;*" OR param="*/*")