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CVE-2014-125122 is a stack-based buffer overflow in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The flaw is triggered by a specially crafted HTTP POST request containing an overly long TM_Block_URL parameter. Processing of this parameter causes a stack memory overwrite in tmUnblock.cgi, allowing controlled corruption of memory. According to the provided information, successful exploitation can temporarily reset the device administrator password to a blank value, which then permits unauthorized access to the router’s web management interface.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit auxiliary module targeting a stack-based buffer overflow vulnerability (CVE-2014-125122) in the Linksys WRT120N router (firmware 1.0.07). The exploit works by sending a specially crafted HTTP POST request to the '/cgi-bin/tmUnblock.cgi' endpoint, overflowing a buffer and resetting the admin password to a blank value. The module then attempts to log in to the router's web interface using the username 'admin' and no password to verify success. The code is written in Ruby and leverages Metasploit's HttpClient mixin. The exploit is operational, providing a practical method to gain unauthorized access to the router's management interface. The only file in the repository is the Metasploit module itself.
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