module

Ghostscript Failed Restore Command Execution

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Disclosed
Aug 21, 2018
Created
Mar 19, 2019

Description

This module exploits a -dSAFER bypass in Ghostscript to execute
arbitrary commands by handling a failed restore (grestore) in
PostScript to disable LockSafetyParams and avoid invalidaccess.

This vulnerability is reachable via libraries such as ImageMagick.

Authors

Tavis Ormandy
wvu [email protected]

Platform

Linux,Unix,Windows

Architectures

cmd, x86, x64

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