CVE-2024-30865
📋 TL;DR
CVE-2024-30865 is a critical SQL injection vulnerability in netentsec NS-ASG 6.3 that allows attackers to execute arbitrary SQL commands via the /admin/edit_user_login.php endpoint. This affects organizations using netentsec NS-ASG 6.3 application security gateways, potentially allowing unauthorized database access and system compromise.
💻 Affected Systems
- netentsec NS-ASG
📦 What is this software?
Ns Asg Firmware by Netentsec
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including administrative access, data exfiltration, and potential lateral movement within the network.
Likely Case
Unauthorized access to sensitive user data, privilege escalation, and potential modification of system configurations.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only information disclosure.
🎯 Exploit Status
Exploit details are publicly available on GitHub. Requires authentication to the admin interface, but SQL injection payloads are straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Check netentsec vendor website for security updates or contact vendor support directly.
🔧 Temporary Workarounds
Input Validation Filter
allImplement web application firewall rules or input validation to block SQL injection patterns
# Example WAF rule for ModSecurity: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403"
Access Restriction
linuxRestrict access to /admin/edit_user_login.php endpoint to trusted IP addresses only
# Apache: <Location /admin/edit_user_login.php> Require ip 192.168.1.0/24 </Location>
# Nginx: location /admin/edit_user_login.php { allow 192.168.1.0/24; deny all; }
🧯 If You Can't Patch
- Implement strict network segmentation to isolate NS-ASG from critical systems
- Enable detailed logging and monitoring for SQL injection attempts on the vulnerable endpoint
🔍 How to Verify
Check if Vulnerable:
Test the /admin/edit_user_login.php endpoint with SQL injection payloads (e.g., ' OR '1'='1) while authenticated. Monitor for unexpected database responses or errors.Check Version:
Check the NS-ASG web interface admin panel or system information page for version detailsVerify Fix Applied:
After implementing workarounds, test with the same SQL injection payloads to confirm they are blocked or properly sanitized.📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in web server logs
- Unusual database queries from web application
- Multiple failed login attempts followed by SQL payloads
Network Indicators:
- HTTP POST requests to /admin/edit_user_login.php containing SQL keywords (UNION, SELECT, INSERT, etc.)
- Abnormal response patterns from the endpoint
SIEM Query:
source="web_server.log" AND (url="/admin/edit_user_login.php" AND (message="*sql*" OR message="*union*" OR message="*select*"))