Rapid7 Vulnerability & Exploit Database

Novell GroupWise Client gwcls1.dll ActiveX Remote Code Execution

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Novell GroupWise Client gwcls1.dll ActiveX Remote Code Execution



This module exploits a vulnerability in the Novell GroupWise Client gwcls1.dll ActiveX. Several methods in the GWCalServer control use user provided data as a pointer, which allows to read arbitrary memory and execute arbitrary code. This module has been tested successfully with GroupWise Client 2012 on IE6 - IE9. The JRE6 needs to be installed to achieve ASLR bypass.


  • rgod <rgod@autistici.org>
  • 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/browser/novell_groupwise_gwcls1_actvx
msf exploit(novell_groupwise_gwcls1_actvx) > show targets
msf exploit(novell_groupwise_gwcls1_actvx) > set TARGET < target-id >
msf exploit(novell_groupwise_gwcls1_actvx) > show options
    ...show and set options...
msf exploit(novell_groupwise_gwcls1_actvx) > exploit

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