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Mozilla Firefox "nsTreeRange" Dangling Pointer Vulnerability

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Mozilla Firefox "nsTreeRange" Dangling Pointer Vulnerability

Disclosed
02/02/2011
Created
05/30/2018

Description

This module exploits a code execution vulnerability in Mozilla Firefox 3.6.x <= 3.6.16 and 3.5.x <= 3.5.17 found in nsTreeSelection. By overwriting a subfunction of invalidateSelection it is possible to free the nsTreeRange object that the function currently operates on. Any further operations on the freed object can result in remote code execution. Utilizing the call setup the function provides it's possible to bypass DEP without the need for a ROP. Sadly this exploit is still either dependent on Java or bound by ASLR because Firefox doesn't employ any ASLR-free modules anymore.

Author(s)

  • regenrecht
  • xero

Platform

Windows

Development

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

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