CVE-2023-36210
📋 TL;DR
MotoCMS 3.4.3 contains a Server-Side Template Injection (SSTI) vulnerability in the Store Category Template via the keyword parameter. This allows attackers to execute arbitrary code on the server with the privileges of the web application. All users running MotoCMS 3.4.3 with the Store Category Template are affected.
💻 Affected Systems
- MotoCMS
📦 What is this software?
Motocms by Motocms
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise leading to data theft, ransomware deployment, or creation of persistent backdoors.
Likely Case
Remote code execution allowing attackers to deface websites, steal sensitive data, or pivot to internal networks.
If Mitigated
Limited impact with proper network segmentation, WAF rules, and minimal privileges.
🎯 Exploit Status
Exploit code is publicly available and requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation on the keyword parameter to reject template syntax.
WAF Rule Implementation
allDeploy Web Application Firewall rules to block SSTI payloads in the keyword parameter.
🧯 If You Can't Patch
- Isolate the affected system from critical networks and implement strict network segmentation.
- Implement application-level input validation to reject template injection patterns in the keyword parameter.
🔍 How to Verify
Check if Vulnerable:
Check if MotoCMS version is 3.4.3 and if Store Category Template is enabled. Test with controlled SSTI payloads in keyword parameter.Check Version:
Check MotoCMS admin panel or configuration files for version information.Verify Fix Applied:
Verify that template injection attempts in the keyword parameter are blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual keyword parameter values containing template syntax like {{, ${, #, etc.
Network Indicators:
- HTTP requests with suspicious template payloads in keyword parameter
SIEM Query:
web_requests WHERE url_parameter CONTAINS 'keyword' AND (url_parameter CONTAINS '{{' OR url_parameter CONTAINS '${' OR url_parameter CONTAINS '#')