Description
This module exploits a buffer overflow vulnerability related to the ShaderJob workings on Adobe Flash Player. The vulnerability happens when trying to apply a Shader setting up the same Bitmap object as src and destination of the ShaderJob. Modifying the "width" attribute of the ShaderJob after starting the job it's possible to create a buffer overflow condition where the size of the destination buffer and the length of the copy are controlled. This module has been tested successfully on:
Windows 7 SP1 (32-bit), IE11 and Adobe Flash 17.0.0.169, Windows 7 SP1 (32-bit), Firefox 38.0.5 and Adobe Flash 17.0.0.169, Windows 8.1, Firefox 38.0.5 and Adobe Flash 17.0.0.169, and Linux Mint "Rebecca" (32 bits), Firefox 33.0 and Adobe Flash 11.2.202.457.
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/browser/adobe/flash_shader_job_overflowmsf undefined(flash_shader_job_overflow) > show actions ...actions...msf undefined(flash_shader_job_overflow) > set ACTION < action-name >msf undefined(flash_shader_job_overflow) > show options ...show and set options...msf undefined(flash_shader_job_overflow) > runPrioritise with Active Threat Intelligence
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