dde-daemon, the daemon process of DDE (Deepin Desktop Environment) 15.0 through 15.3, runs with root privileges and hardly does anything to identify the user who calls the function through D-Bus. Anybody can change the grub config, even to append some arguments to make a backdoor or privilege escalation, by calling DoWriteGrubSettings() provided by dde-daemon.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Link | Tags |
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https://github.com/kings-way/deepinhack/blob/master/dde_daemon_poc.py | third party advisory exploit |