Bug 49043 – univention-novnc runs as root

Bug 49043 - univention-novnc runs as root


Summary:	univention-novnc runs as root

Status:	CLOSED WONTFIX

Product:	UCS
Classification:	Unclassified
Component:	Virtualization - UVMM
Version:	UCS 4.4
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	UCS maintainers
QA Contact:	UCS maintainers

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Reported:	2019-03-19 17:48 CET by Philipp Hahn
Modified:	2023-06-28 10:46 CEST (History)
CC List:	2 users (show)

See Also:	35428
What kind of report is it?:	Security Issue
What type of bug is this?:	---
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Max CVSS v3 score:	0.0 (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:N)

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Description Philipp Hahn

2019-03-19 17:48:09 CET

/etc/init.d/univention-novnc:49
> start-stop-daemon --start ... --user novnc ...

is only a *check*, so `websockify` runs as user 'root';
`--chuid` is the right option to use.

Our version of noVNC is quiet old and contains at least one known security vulnerability (Bug #35428: CVE-2013-7436). My current reading is that it cannot be used to get access to the host system.
Nevertheless the network facing daemon should not run as user 'root'.

UCS technical training 2019-03-21/22

Comment 1 Philipp Hahn

2023-06-28 10:44:08 CEST

UVMM and virtualization with UCS is deprecated and will no longer be developed in UCS 4.4; they have already been removed from UCS 5.0.