CVE-2022-27165
📋 TL;DR
CVE-2022-27165 is a critical SQL injection vulnerability in CSZ CMS 1.2.2 that allows attackers to execute arbitrary SQL commands via the cszcms_admin_Plugin_manager_setstatus endpoint. This affects all systems running vulnerable versions of CSZ CMS, particularly those with administrative interfaces exposed. Successful exploitation could lead to complete database compromise.
💻 Affected Systems
- CSZ CMS
📦 What is this software?
Csz Cms by Cszcms
⚠️ Risk & Real-World Impact
Worst Case
Complete database takeover allowing data theft, modification, or deletion; potential remote code execution through database functions; full system compromise.
Likely Case
Database information disclosure including user credentials, sensitive content, and configuration data; potential privilege escalation to administrative access.
If Mitigated
Limited impact with proper input validation and parameterized queries; database access restricted to read-only operations.
🎯 Exploit Status
Exploitation requires administrative access to the plugin manager interface; SQL injection payloads are well-documented and easy to craft.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.3 or later
Vendor Advisory: https://github.com/cskaza/cszcms/issues/41
Restart Required: No
Instructions:
1. Backup your database and files. 2. Download latest CSZ CMS version from official repository. 3. Replace vulnerable files with patched versions. 4. Verify plugin manager functionality works correctly.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize plugin manager parameters before processing
Modify cszcms_admin_Plugin_manager_setstatus function to validate and sanitize all input parameters using PHP filter functions
Access Restriction
linuxRestrict access to admin interface to trusted IP addresses only
Add .htaccess rules to limit /admin/ directory access: Order Deny,Allow\nDeny from all\nAllow from 192.168.1.0/24
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block SQL injection patterns targeting the plugin manager endpoint
- Disable or remove the plugin manager functionality if not required for operations
🔍 How to Verify
Check if Vulnerable:
Check if running CSZ CMS version 1.2.2 or earlier; review admin/plugins.php file for lack of parameterized queries in setstatus functionCheck Version:
Check includes/version.php or look for version information in admin dashboardVerify Fix Applied:
Verify version is 1.2.3 or later; test plugin manager functionality with SQL injection test payloads (safe, non-destructive)📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts followed by plugin manager access
- SQL syntax errors in web server logs from /admin/ paths
Network Indicators:
- POST requests to /admin/plugins.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND (uri_path="/admin/plugins.php" AND (param="setstatus" AND value MATCH "(?i)(union|select|insert|update|delete|drop|create|alter)"))