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eSignal and eSignal Pro File Parsing Buffer Overflow in QUO

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eSignal and eSignal Pro File Parsing Buffer Overflow in QUO



The software is unable to handle the "" files (even those original included in the program) like those with the registered extensions QUO, SUM and POR. Successful exploitation of this vulnerability may take up to several seconds due to the use of egghunter. Also, DEP bypass is unlikely due to the limited space for payload. This vulnerability affects versions 10.6.2425.1208 and earlier.


  • Luigi Auriemma
  • TecR0c <tecr0c@tecninja.net>
  • mr_me <steventhomasseeley@gmai.com>




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/fileformat/esignal_styletemplate_bof
msf exploit(esignal_styletemplate_bof) > show targets
msf exploit(esignal_styletemplate_bof) > set TARGET < target-id >
msf exploit(esignal_styletemplate_bof) > show options
    ...show and set options...
msf exploit(esignal_styletemplate_bof) > exploit

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security