[FD] Hue 3.7.1 Local Privilege Escalation

Title: Hue 3.7.1 Local Privilege Escalation Author: Julian Horoszkiewicz Description: An issue with hue-root privilege separation model has been identified. The reason for this is that /usr/lib/hue/build/env/bin/supervisor python script is by default owned by user hue, but executed as root. That opens the way for adding arbitrary commands to be executed as root if one has access to hue user account. The hue server itself runs with privileges of the dedicated user hue (it drops privileges from root), nonetheless privilege reduction takes place scarcely after execution of the culprit script, which leads to privilege escalation. Either manual service restart by root or system reboot has to be performed in order to get the malicious code executed. In order to mitigate the risk, the ownership of that file should be changed to root.

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