CVE-2024-30868
📋 TL;DR
This vulnerability allows attackers to execute arbitrary SQL commands through the /admin/add_getlogin.php endpoint in netentsec NS-ASG 6.3. Successful exploitation could lead to unauthorized data access, modification, or complete system compromise. Organizations using NS-ASG 6.3 are affected.
💻 Affected Systems
- netentsec NS-ASG
📦 What is this software?
Ns Asg Firmware by Netentsec
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover, data exfiltration, credential theft, and lateral movement within the network
Likely Case
Unauthorized access to administrative functions, data manipulation, and potential privilege escalation
If Mitigated
Limited impact if proper input validation and WAF rules are in place, though risk remains
🎯 Exploit Status
Public proof-of-concept available, SQL injection is well-understood attack vector
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
1. Contact netentsec for official patch or guidance
2. Monitor vendor security advisories
3. Apply patch when available following vendor instructions
🔧 Temporary Workarounds
Block vulnerable endpoint
allRestrict access to /admin/add_getlogin.php via web server configuration or firewall
# Apache: RewriteRule ^/admin/add_getlogin\.php$ - [F]
# Nginx: location ~ ^/admin/add_getlogin\.php$ { deny all; }
Implement WAF rules
allDeploy web application firewall rules to detect and block SQL injection attempts
# ModSecurity: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Isolate the NS-ASG system in a restricted network segment
- Implement strict access controls and monitor all traffic to the vulnerable endpoint
🔍 How to Verify
Check if Vulnerable:
Test the /admin/add_getlogin.php endpoint with SQL injection payloads (e.g., ' OR '1'='1) and observe responseCheck Version:
Check system documentation or web interface for version informationVerify Fix Applied:
Verify endpoint is no longer accessible or properly validates input against SQL injection📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Multiple failed login attempts via add_getlogin.php
- Unexpected database errors
Network Indicators:
- HTTP requests to /admin/add_getlogin.php with SQL keywords
- Unusual outbound database connections
SIEM Query:
source="web_logs" AND uri="/admin/add_getlogin.php" AND (payload="' OR" OR payload="UNION" OR payload="SELECT")