Rapid7 Vulnerability & Exploit Database

MS11-021 Microsoft Office 2007 Excel .xlb Buffer Overflow

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MS11-021 Microsoft Office 2007 Excel .xlb Buffer Overflow



This module exploits a vulnerability found in Excel of Microsoft Office 2007. By supplying a malformed .xlb file, an attacker can control the content (source) of a memcpy routine, and the number of bytes to copy, therefore causing a stack- based buffer overflow. This results in arbitrary code execution under the context of the user.


  • Aniway
  • Unknown
  • sinn3r <sinn3r@metasploit.com>
  • juan vazquez <juan.vazquez@metasploit.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/ms11_021_xlb_bof
msf exploit(ms11_021_xlb_bof) > show targets
msf exploit(ms11_021_xlb_bof) > set TARGET < target-id >
msf exploit(ms11_021_xlb_bof) > show options
    ...show and set options...
msf exploit(ms11_021_xlb_bof) > exploit

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