CVE-2025-6763
📋 TL;DR
This CVE describes an authentication bypass vulnerability in Comet System's web-based management interface affecting multiple device models. Attackers can manipulate the /setupA.cfg file to gain unauthorized access without authentication. The vulnerability affects Comet System T0510, T3510, T3511, T4511, T6640, T7511, T7611, P8510, P8552, and H3531 devices running version 1.60.
💻 Affected Systems
- Comet System T0510
- T3510
- T3511
- T4511
- T6640
- T7511
- T7611
- P8510
- P8552
- H3531
📦 What is this software?
H3531 Firmware by Cometsystem
P8510 Firmware by Cometsystem
P8552 Firmware by Cometsystem
T0510 Firmware by Cometsystem
T3510 Firmware by Cometsystem
T3511 Firmware by Cometsystem
T4511 Firmware by Cometsystem
T6640 Firmware by Cometsystem
T7511 Firmware by Cometsystem
T7611 Firmware by Cometsystem
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of affected devices allowing attackers to reconfigure systems, intercept network traffic, or use devices as pivot points into internal networks.
Likely Case
Unauthorized access to device management interface enabling configuration changes, service disruption, or credential harvesting.
If Mitigated
Limited impact if devices are properly segmented and not internet-facing as recommended by vendor.
🎯 Exploit Status
Proof of concept exists on GitHub, but exploitation is described as difficult with high complexity required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None provided in CVE
Restart Required: No
Instructions:
No official patch available. Follow workarounds and mitigation steps below.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices from internet and restrict access to management interfaces
Access Control Lists
allImplement strict firewall rules to limit access to management interfaces
🧯 If You Can't Patch
- Implement network segmentation to isolate affected devices from untrusted networks
- Monitor for unauthorized access attempts to management interfaces and review logs regularly
🔍 How to Verify
Check if Vulnerable:
Check device model and firmware version via web interface or console. If running version 1.60 on affected models, assume vulnerable.Check Version:
Check via device web interface or console for firmware version informationVerify Fix Applied:
No official fix available. Verify workarounds by testing network isolation and access controls.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /setupA.cfg
- Configuration changes without authentication logs
- Multiple failed authentication attempts followed by successful access
Network Indicators:
- Unusual traffic patterns to management interfaces
- Access from unexpected IP addresses to device management ports
SIEM Query:
source_ip NOT IN (allowed_management_ips) AND dest_port IN (80,443,8080) AND uri_path CONTAINS '/setupA.cfg'