CVE-2016-10176: Input Validation
First published: Mon Jan 30 2017(Updated: )
The NETGEAR WNR2000v5 router allows an administrator to perform sensitive actions by invoking the apply.cgi URL on the web server of the device. This special URL is handled by the embedded web server (uhttpd) and processed accordingly. The web server also contains another URL, apply_noauth.cgi, that allows an unauthenticated user to perform sensitive actions on the device. This functionality can be exploited to change the router settings (such as the answers to the password-recovery questions) and achieve remote code execution.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR WNR2000v5 firmware | <=1.0.0.34 | |
| NETGEAR WNR2000v5 firmware |
Remedy
http://kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-Vulnerability
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Reference Links
- http://kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-Vulnerability
- http://seclists.org/fulldisclosure/2016/Dec/72
- http://www.securityfocus.com/bid/95867
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/netgear-wnr2000.txt
- https://www.exploit-db.com/exploits/40949/
Frequently Asked Questions
What is the severity of CVE-2016-10176?
CVE-2016-10176 is classified as a high severity vulnerability due to its potential for unauthorized command execution on affected NETGEAR routers.
How do I fix CVE-2016-10176?
To fix CVE-2016-10176, ensure that your NETGEAR WNR2000v5 router firmware is updated to a version later than 1.0.0.34.
What devices are impacted by CVE-2016-10176?
CVE-2016-10176 specifically affects the NETGEAR WNR2000v5 router running firmware versions up to and including 1.0.0.34.
What are the potential risks of CVE-2016-10176?
The risks of CVE-2016-10176 include unauthorized remote access to the router, which could lead to command execution and control over the device.
Is user authentication necessary for CVE-2016-10176 exploitation?
User authentication is not necessary for exploiting CVE-2016-10176, making it particularly dangerous for unpatched devices.
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