CVE-2025-29268
📋 TL;DR
ALLNET ALL-RUT22GW routers contain hardcoded credentials in the libicos.so library, allowing attackers to gain unauthorized access to the device. This affects all users of ALL-RUT22GW v3.3.8 routers, particularly those in industrial environments where these devices are commonly deployed.
💻 Affected Systems
- ALLNET ALL-RUT22GW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing attackers to intercept network traffic, modify configurations, install malware, pivot to internal networks, and disrupt industrial operations.
Likely Case
Unauthorized administrative access to the router leading to network monitoring, configuration changes, and potential lateral movement to connected systems.
If Mitigated
Limited impact if network segmentation prevents router access and strong perimeter controls are in place.
🎯 Exploit Status
Hardcoded credentials are trivial to extract and use once the library is analyzed. No authentication required to use the discovered credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Check vendor website for firmware updates
2. Download latest firmware
3. Backup current configuration
4. Upload and install new firmware via web interface
5. Restart router
6. Restore configuration if needed
🔧 Temporary Workarounds
Network Segmentation
allIsolate router management interface from untrusted networks
Access Control Lists
allRestrict management interface access to trusted IP addresses only
🧯 If You Can't Patch
- Replace affected devices with patched or alternative models
- Implement network monitoring for unauthorized access attempts to router management interfaces
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface under System > Firmware. If version is 3.3.8, device is vulnerable.Check Version:
Login to router web interface and navigate to System > Firmware pageVerify Fix Applied:
Verify firmware version has been updated to a version later than 3.3.8 and attempt to authenticate with known hardcoded credentials (should fail).📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful login
- Multiple login attempts from unusual IP addresses
- Configuration changes from unexpected sources
Network Indicators:
- Unusual traffic patterns from router
- Management interface accessed from external IPs
- Unexpected outbound connections from router
SIEM Query:
source="router_logs" AND (event_type="authentication" AND result="success") AND user="admin" | stats count by src_ip