Privilege Escalation Vulnerability in dde-daemon Allows Unauthorized Grub Configuration Changes

CVE-2017-7622 · HIGH Severity

AV:N/AC:L/AU:S/C:C/I:C/A:C

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.

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