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Ultra Mini HTTPD Stack Buffer Overflow

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Ultra Mini HTTPD Stack Buffer Overflow



This module exploits a stack based buffer overflow in Ultra Mini HTTPD 1.21, allowing remote attackers to execute arbitrary code via a long resource name in an HTTP request. This exploit has to deal with the fact that the application's request handler thread is terminated after 60 seconds by a "monitor" thread. To do this, it allocates some RWX memory, copies the payload to it and creates another thread. When done, it terminates the current thread so that it doesn't crash and hence doesn't bring down the process with it.


  • superkojiman
  • PsychoSpy <neinwechter@gmail.com>
  • OJ Reeves <oj@buffered.io>




Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/windows/http/ultraminihttp_bof
msf exploit(ultraminihttp_bof) > show targets
msf exploit(ultraminihttp_bof) > set TARGET < target-id >
msf exploit(ultraminihttp_bof) > show options
    ...show and set options...
msf exploit(ultraminihttp_bof) > exploit

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