CVE-2025-7192
📋 TL;DR
This critical vulnerability in D-Link DIR-645 routers allows remote attackers to execute arbitrary commands via command injection in the ssdpcgi component. Attackers can exploit this without authentication to potentially take full control of affected devices. Only affects D-Link DIR-645 routers up to version 1.05B01, which are no longer supported by the vendor.
💻 Affected Systems
- D-Link DIR-645
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent malware, pivot to internal networks, intercept traffic, or use device as botnet node.
Likely Case
Remote code execution leading to device takeover, credential theft, and network surveillance capabilities.
If Mitigated
Limited impact if device is behind firewall with restricted inbound access and network segmentation.
🎯 Exploit Status
Public exploit code available on GitHub. Attack requires network access to device's web interface port (typically 80/443).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None available
Vendor Advisory: https://www.dlink.com/
Restart Required: No
Instructions:
No official patch exists. Device is end-of-life. Replace with supported hardware.
🔧 Temporary Workarounds
Disable UPnP/SSDP service
allDisable the vulnerable ssdpcgi service if not required
Access router admin interface > Advanced > UPnP > Disable
Or via CLI if available: killall ssdpcgi
Restrict network access
linuxBlock external access to router management interface
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Immediately replace affected devices with supported hardware
- Isolate vulnerable devices in separate VLAN with strict firewall rules blocking all unnecessary traffic
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface (Status > Device Info) or via command: cat /etc/versionCheck Version:
cat /etc/version | grep -i 'firmware\|version'Verify Fix Applied:
No fix available to verify. Verify device replacement or workaround implementation.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /htdocs/cgibin
- ssdpcgi process crashes
- Suspicious command execution in system logs
Network Indicators:
- SSDP/UPnP traffic with unusual payloads
- Unexpected outbound connections from router
- Port scanning originating from router
SIEM Query:
source="router_logs" AND (uri="/htdocs/cgibin" OR process="ssdpcgi") AND (cmd="*" OR exec="*")🔗 References
- https://github.com/Thir0th/Thir0th-CVE/blob/main/D-Link%20DIR%E2%80%91645%20A1%20has%20a%20remote%20arbitrary%20command%20execution%20vulnerability%20in%20ssdpcgi.md
- https://vuldb.com/?ctiid.315131
- https://vuldb.com/?id.315131
- https://vuldb.com/?submit.607261
- https://www.dlink.com/
- https://github.com/Thir0th/Thir0th-CVE/blob/main/D-Link%20DIR%E2%80%91645%20A1%20has%20a%20remote%20arbitrary%20command%20execution%20vulnerability%20in%20ssdpcgi.md
