CVE-2024-41691
📋 TL;DR
This vulnerability allows attackers with physical access to extract plaintext FTP credentials from SyroTech SY-GPON-1110-WDONT router firmware. Affected users are those with these routers deployed where physical access is possible, potentially leading to unauthorized FTP server access.
💻 Affected Systems
- SyroTech SY-GPON-1110-WDONT Router
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full control of FTP server, potentially accessing sensitive files, modifying content, or using as pivot point for further attacks.
Likely Case
Local attacker extracts credentials and accesses FTP server to view or download files stored there.
If Mitigated
With proper physical security controls, risk is limited to authorized personnel only.
🎯 Exploit Status
Requires physical access, firmware extraction tools, and binary analysis skills. Not trivial but achievable by determined attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Contact vendor for updated firmware or consider replacement.
🔧 Temporary Workarounds
Disable FTP service
allTurn off FTP server functionality if not required
Check router admin interface for FTP settings
Change FTP credentials
allUpdate FTP passwords regularly to limit exposure window
Use router admin interface to change FTP credentials
🧯 If You Can't Patch
- Implement strict physical security controls around router location
- Monitor FTP access logs for unauthorized activity
🔍 How to Verify
Check if Vulnerable:
Extract router firmware using tools like binwalk and search for plaintext FTP credentials in SquashFS filesystemCheck Version:
Check router web interface or serial console for firmware versionVerify Fix Applied:
Check if vendor releases updated firmware with encrypted credential storage📡 Detection & Monitoring
Log Indicators:
- Unexpected FTP access from new locations
- Multiple failed FTP login attempts
Network Indicators:
- FTP traffic from unexpected sources
- Unusual file transfer patterns
SIEM Query:
source="ftp.log" AND (action="login" OR action="download") | stats count by src_ip