module

Evince CBT File Command Injection

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Disclosed
2017-07-13
Created
2019-03-19

Description

This module exploits a command injection vulnerability in Evince
before version 3.24.1 when opening comic book `.cbt` files.

Some file manager software, such as Nautilus and Atril, may allow
automatic exploitation without user interaction due to thumbnailer
preview functionality.

Note that limited space is available for the payload ( Reverse Bash and Reverse Netcat payloads should be sufficiently small.

This module has been tested successfully on evince versions:

3.4.0-3.1 + nautilus 3.4.2-1+build1 on Kali 1.0.6;
3.18.2-1ubuntu4.3 + atril 1.12.2-1ubuntu0.3 on Ubuntu 16.04.

Authors

Felix Wilhelm
Sebastian Krahmer
Matlink
bcoles bcoles@gmail.com

Platform

Unix

Architectures

cmd

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