CVE-2023-23295
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands with root privileges on affected Korenix Jetwave industrial routers. Attackers can exploit the /goform/formSysCmd endpoint by manipulating the sysCmd parameter to run system commands. Organizations using Korenix Jetwave 4200 or 3000 series routers are affected.
💻 Affected Systems
- Korenix Jetwave 4200 Series
- Korenix Jetwave 3000 Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install persistent backdoors, pivot to internal networks, disrupt industrial operations, or use devices for botnet participation.
Likely Case
Attackers gain root shell access to modify configurations, intercept network traffic, or disrupt device functionality.
If Mitigated
Limited impact if devices are behind firewalls with strict network segmentation and command execution monitoring.
🎯 Exploit Status
Simple HTTP POST request with command injection payload. Public technical details available in referenced advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not publicly available
Restart Required: No
Instructions:
No official patch available. Contact Korenix support for firmware updates. Check vendor website for security advisories.
🔧 Temporary Workarounds
Network Access Control
allRestrict access to device web interface using firewall rules
Web Interface Disable
allDisable web interface if not required for operations
🧯 If You Can't Patch
- Segment affected devices in isolated network zones with strict firewall rules
- Implement network monitoring for suspicious HTTP requests to /goform/formSysCmd endpoint
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or SSH. Version 1.3.0 for 4200 series or 1.6.0 for 3000 series indicates vulnerability.Check Version:
Check via web interface System Information page or SSH with 'cat /etc/version'Verify Fix Applied:
Verify firmware has been updated to version not listed as vulnerable. Test with controlled command injection attempt.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /goform/formSysCmd with unusual parameters
- System command execution logs from web interface user
Network Indicators:
- HTTP traffic to device port 80/443 containing command injection patterns in POST data
- Unusual outbound connections from device
SIEM Query:
source="web_logs" AND uri="/goform/formSysCmd" AND (method="POST") AND (data CONTAINS "sysCmd=" AND data CONTAINS "|" OR data CONTAINS ";" OR data CONTAINS "`")