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LibreOffice Macro Python Code Execution

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LibreOffice Macro Python Code Execution

Disclosed
07/16/2019
Created
08/20/2019

Description

LibreOffice comes bundled with sample macros written in Python and allows the ability to bind program events to them. LibreLogo is a macro that allows a program event to execute text as Python code, allowing RCE. This module generates an ODT file with a dom loaded event that, when triggered, will execute arbitrary python code and the metasploit payload.

Author(s)

  • Nils Emmerich
  • Shelby Pace
  • LoadLow
  • Gabriel Masei

Platform

Python

Architectures

python

Development

References

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

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