Vulnerability Description
A stack-based buffer overflow vulnerability exists in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The vulnerability is triggered by sending a specially crafted HTTP POST request with an overly long TM_Block_URL parameter to the endpoint. By exploiting this flaw, an unauthenticated remote attacker can overwrite memory in a controlled manner, enabling them to temporarily reset the administrator password of the device to a blank value. This grants unauthorized access to the router’s web management interface without requiring valid credentials.
Related Weaknesses (CWE)
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/aux
- https://web.archive.org/web/20210424073058/http://www.devttys0.com/2014/02/wrt12
- https://www.exploit-db.com/exploits/31758
- https://www.vulncheck.com/advisories/linksys-wrt120n-stack-based-buffer-overflow
FAQ
What is CVE-2014-125122?
CVE-2014-125122 is a documented vulnerability. A stack-based buffer overflow vulnerability exists in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The vulnerability is triggered by sending a specially crafted HTTP POST request...
How severe is CVE-2014-125122?
CVSS scoring is not yet available for CVE-2014-125122. Check NVD for updates.
Is there a patch for CVE-2014-125122?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.