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IBM Lotus QuickR qp2 ActiveX Buffer Overflow

This module exploits a buffer overflow vulnerability on the UploadControl ActiveX. The vulnerability exists in the handling of the "Attachment_Times" property, due to the insecure usage of the _swscanf. The affected ActiveX is provided by the qp2.dll installed with the IBM Lotus Quickr product. This module has been tested successfully on IE6-IE9 on Windows XP, Vista and 7, using the qp2.dll In order to bypass ASLR the no aslr compatible module msvcr71.dll is used. This one is installed with the qp2 ActiveX.

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Module Name



  • Gaurav Baruah
  • juan vazquez <juan.vazquez [at]>



  • Automatic
  • IE 6 on Windows XP SP3
  • IE 7 on Windows XP SP3
  • IE 8 on Windows XP SP3
  • IE 7 on Windows Vista
  • IE 8 on Windows Vista
  • IE 8 on Windows 7
  • IE 9 on Windows 7


  • windows



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/browser/quickr_qp2_bof msf exploit(quickr_qp2_bof) > show targets ...targets... msf exploit(quickr_qp2_bof) > set TARGET <target-id> msf exploit(quickr_qp2_bof) > show options and set options... msf exploit(quickr_qp2_bof) > exploit