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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 happe...
CVE-2022-2735 · published 4 years ago
Summary
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 allo...
What to do
- Update debian pcs to version 0.11.3-2.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | clusterlabs | pcs |
>= 0.10.5, <= 0.11.3 cpe:2.3:a:clusterlabs:pcs:*:*:*:*:*:*:*:* |
| – | debian | debian_linux |
11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| Debian:12 | debian | pcs |
< 0.11.3-2 Fix: upgrade to 0.11.3-2
|
Original advisory text
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 happe...
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.
References
- https://www.debian.org/security/2022/dsa-5226 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2022-2735 URL
- https://www.openwall.com/lists/oss-security/2022/09/01/4 URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2735.j... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-2735 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2116815 Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2022-2735 Vendor Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-276Incorrect Default Permissions
Timeline
Published6 Sep 2022
Updated31 Oct 2026
First seen29 Sep 2026
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