Description
This module attempts to gain root privileges with SUID Xorg X11 server versions 1.19.0 < 1.20.3.
A permission check flaw exists for -modulepath and -logfile options when starting Xorg. This allows unprivileged users that can start the server the ability to elevate privileges and run arbitrary code under root privileges.
This module has been tested with CentOS 7 (1708). CentOS default install will require console auth for the users session. Xorg must have SUID permissions and may not start if running.
On successful exploitation artifacts will be created consistant with starting Xorg.
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/local/xorg/x11_suid_server_modulepathmsf undefined(x11_suid_server_modulepath) > show actions ...actions...msf undefined(x11_suid_server_modulepath) > set ACTION < action-name >msf undefined(x11_suid_server_modulepath) > show options ...show and set options...msf undefined(x11_suid_server_modulepath) > runPrioritise with Active Threat Intelligence
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