CVE-2018-17391
📋 TL;DR
This vulnerability allows attackers to execute arbitrary SQL commands via the author parameter in authors_post.php in Super Cms Blog Pro 1.0. This can lead to unauthorized data access, modification, or deletion. Any system running Super Cms Blog Pro 1.0 with the vulnerable component exposed is affected.
💻 Affected Systems
- Super Cms Blog Pro
📦 What is this software?
Super Cms Blog Pro by Super Cms Blog Pro Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, and potential remote code execution if database permissions allow.
Likely Case
Unauthorized access to sensitive data, privilege escalation, and potential website defacement.
If Mitigated
Limited impact with proper input validation and database permission restrictions.
🎯 Exploit Status
Multiple public exploit scripts are available, making this easily exploitable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a different CMS or implementing workarounds.
🔧 Temporary Workarounds
Input Validation and Parameterized Queries
allModify authors_post.php to use prepared statements with parameterized queries instead of concatenating user input into SQL statements.
Replace vulnerable SQL queries with prepared statements using PDO or MySQLi
Web Application Firewall (WAF)
allDeploy a WAF to filter malicious SQL injection attempts targeting the author parameter.
Configure WAF rules to block SQL injection patterns in POST/GET parameters
🧯 If You Can't Patch
- Remove or disable the authors_post.php file if not required
- Implement strict network segmentation and limit database access to only necessary services
🔍 How to Verify
Check if Vulnerable:
Test the author parameter in authors_post.php with SQL injection payloads like ' OR '1'='1Check Version:
Check CMS version in configuration files or admin panelVerify Fix Applied:
Test the same parameter after implementing fixes to ensure SQL injection attempts are blocked or properly handled📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in web server logs
- Multiple failed login attempts or unusual parameter values in access logs
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) in the author parameter
SIEM Query:
source="web_server.log" AND ("SQL syntax" OR "author=' OR" OR "author=1' OR")