Polkit D-Bus Authentication Bypass

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.