Vulnerability in Clusterlabs Pacemaker
CVE-2020-25654
An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Clusterlabs Pacemaker — versions 2.0.5
- Debian Linux — versions 9.0
- Pacemaker — versions pacemaker 1.1.24-rc1, pacemaker 2.0.5-rc2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- seclists.org/oss-sec/2020/q4/83 (Mailing List, Third Party Advisory)
- lists.clusterlabs.org/pipermail/users/2020-October/027840.html (Mailing List, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2021/01/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202309-09 (vendor-advisory)
Frequently asked questions
- What is CVE-2020-25654?
- CVE-2020-25654 is a high-severity vulnerability in Clusterlabs Pacemaker, classified under Improper Access Control. CVSS score: 7.2/10. Published 2020-11-24.
- How severe is CVE-2020-25654?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2020-25654 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.