Description
A vulnerability exists within the polkit system service that can be leveraged by a local, unprivileged attacker to perform privileged operations. In order to leverage the vulnerability, the attacker invokes a method over D-Bus and kills the client process. This will occasionally cause the operation to complete without being subjected to all of the necessary authentication. The exploit module leverages this to add a new user with a sudo access and a known password. The new account is then leveraged to execute a payload with root privileges.
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/linux/local/polkit/dbus_auth_bypassmsf undefined(dbus_auth_bypass) > show actions ...actions...msf undefined(dbus_auth_bypass) > set ACTION < action-name >msf undefined(dbus_auth_bypass) > show options ...show and set options...msf undefined(dbus_auth_bypass) > runPrioritise with Active Threat Intelligence
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