CVE-2022-2735

Name	CVE-2022-2735
Description	A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DSA-5226-1
Debian Bugs	1018930

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pcs (PTS)	buster	0.10.1-2	fixed
	buster (security)	0.10.1-2+deb10u1	fixed
	bullseye (security), bullseye	0.10.8-1+deb11u1	fixed
	bookworm, sid	0.11.5-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
pcs	source	buster	(not affected)
pcs	source	bullseye	0.10.8-1+deb11u1	DSA-5226-1
pcs	source	(unstable)	0.11.3-2		1018930

Notes

[buster] - pcs <not-affected> (Vulnerable code not present, see #1018930)
https://www.openwall.com/lists/oss-security/2022/09/01/4
https://bugzilla.redhat.com/show_bug.cgi?id=2116815
https://github.com/ClusterLabs/pcs/commit/de068e2066e377d1cc77edf25aed0198e4c77f7b