Vulnerability Details : CVE-2022-2735
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.
Vulnerability category: Gain privilege
Products affected by CVE-2022-2735
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:clusterlabs:pcs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-2735
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-2735
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2022-2735
-
During installation, installed file permissions are set to allow anyone to modify those files.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2022-2735
-
https://www.openwall.com/lists/oss-security/2022/09/01/4
oss-security - ClusterLabs/PCS: [CVE-2022-2735] Obtaining an authentication token for hacluster user leads to privilege escalation.Mailing List;Release Notes;Third Party Advisory
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https://access.redhat.com/security/cve/CVE-2022-2735
CVE-2022-2735- Red Hat Customer PortalThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5226
Debian -- Security Information -- DSA-5226-1 pcsThird Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=2116815
2116815 – (CVE-2022-2735) CVE-2022-2735 pcs: obtaining an authentication token for hacluster user could lead to privilege escalationIssue Tracking;Patch;Third Party Advisory
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