CVE-2022-45551
📋 TL;DR
This vulnerability allows attackers to execute arbitrary WGET commands through the Network Diagnosis endpoint, leading to privilege escalation on affected ZBT WE1626 routers. Attackers can gain administrative control over the router. Only users of ZBT WE1626 routers running vulnerable firmware are affected.
💻 Affected Systems
- Shenzhen Zhiboton Electronics ZBT WE1626 Router
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of router with persistent backdoor installation, traffic interception, and lateral movement to connected devices.
Likely Case
Router takeover allowing network reconnaissance, DNS hijacking, and credential theft from connected clients.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access and strong network segmentation.
🎯 Exploit Status
Exploitation requires network access to router's web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official advisory found
Restart Required: No
Instructions:
Check vendor website for firmware updates. If unavailable, consider router replacement.
🔧 Temporary Workarounds
Disable Remote Administration
allTurn off remote management features to prevent external exploitation
Access router admin panel > Advanced > Remote Management > Disable
Network Segmentation
allIsolate router management interface from untrusted networks
Configure firewall rules to restrict access to router IP on ports 80/443
🧯 If You Can't Patch
- Replace affected router with supported model
- Implement strict network ACLs to limit router access to trusted IPs only
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface. If version is 21.06.18, device is vulnerable.Check Version:
curl -s http://router-ip/status.cgi | grep versionVerify Fix Applied:
Verify firmware version has been updated beyond 21.06.18📡 Detection & Monitoring
Log Indicators:
- Unusual WGET commands in system logs
- Multiple failed authentication attempts to admin interface
Network Indicators:
- Unexpected outbound connections from router
- Unusual traffic patterns to/from router management interface
SIEM Query:
source="router.log" AND ("wget" OR "network_diagnosis")