ghostscript: /invalidaccess bypass after failed restore (699654)

It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document...

ghostscript: /invalidaccess bypass after failed restore (699654)

It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document...

Ghostscript Failed Restore Command Execution

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. Module Options msf use...