CVE-2023-41636
📋 TL;DR
This SQL injection vulnerability in GruppoSCAI RealGimm v1.1.37p38 allows attackers to execute arbitrary SQL commands through the 'Data Richiesta dal' parameter. Attackers can access, modify, or delete database contents, potentially leading to complete system compromise. Organizations using this specific version of RealGimm are affected.
💻 Affected Systems
- GruppoSCAI RealGimm
📦 What is this software?
Realgimm by Grupposcai
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data theft, data destruction, privilege escalation to system-level access, and potential remote code execution on the underlying server.
Likely Case
Unauthorized database access leading to sensitive data exposure, data manipulation, and potential authentication bypass.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.
🎯 Exploit Status
Public proof-of-concept available on GitHub. SQL injection vulnerabilities are commonly weaponized due to their simplicity and impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. Apply any available patches
3. Verify fix by testing the vulnerable parameter
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for the 'Data Richiesta dal' parameter to reject malicious SQL characters
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns targeting the vulnerable parameter
🧯 If You Can't Patch
- Implement network segmentation to isolate the RealGimm application from critical databases
- Deploy database monitoring and alerting for unusual SQL queries
🔍 How to Verify
Check if Vulnerable:
Test the 'Data Richiesta dal' parameter with SQL injection payloads like ' OR '1'='1 and monitor for database errors or unexpected behaviorCheck Version:
Check application version in admin interface or configuration filesVerify Fix Applied:
Retest the vulnerable parameter with SQL injection payloads and verify they are properly rejected or sanitized📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries from application user
- Multiple failed login attempts following SQL injection patterns
Network Indicators:
- HTTP requests containing SQL keywords like UNION, SELECT, INSERT targeting the vulnerable parameter
- Abnormal database traffic patterns
SIEM Query:
source="application.log" AND ("SQL syntax" OR "database error" OR "Data Richiesta dal" AND (SELECT OR UNION OR INSERT))🔗 References
- https://github.com/CapgeminiCisRedTeam/Disclosure/blob/f7aafa9fcd4efa30071c7f77d3e9e6b14e92302b/CVE%20PoC/CVE-2023-41636%20%7C%20RealGimm%20-%20SQL%20Injection%281%29.md
- https://github.com/CapgeminiCisRedTeam/Disclosure/blob/main/CVE%20PoC/CVE-ID%20%7C%20RealGimm%20-%20SQL%20Injection%281%29.md
- https://github.com/CapgeminiCisRedTeam/Disclosure/blob/f7aafa9fcd4efa30071c7f77d3e9e6b14e92302b/CVE%20PoC/CVE-2023-41636%20%7C%20RealGimm%20-%20SQL%20Injection%281%29.md
- https://github.com/CapgeminiCisRedTeam/Disclosure/blob/main/CVE%20PoC/CVE-ID%20%7C%20RealGimm%20-%20SQL%20Injection%281%29.md
