Auth bypass in Clusterlabs Pacemaker
CVE-2018-16877
A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalati…
Vulnerability class: Broken Authentication
EPSS: 0.000 (12.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Clusterlabs Pacemaker — versions affects up to and including Pacemaker-2.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi
- github.com/ClusterLabs/pacemaker/pull/1749
- USN-3952-1 (vendor-advisory)
- 108042 (vdb-entry)
- FEDORA-2019-e4c8de3fb7 (vendor-advisory)
- FEDORA-2019-e71f6f36ac (vendor-advisory)
- FEDORA-2019-b502250ba4 (vendor-advisory)
- openSUSE-SU-2019:1342 (vendor-advisory)
- openSUSE-SU-2019:1400 (vendor-advisory)
- RHSA-2019:1278 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-16877?
- CVE-2018-16877 is a high-severity vulnerability in Clusterlabs Pacemaker, classified under Improper Authentication. CVSS score: 8.8/10. Published 2019-04-18.
- How severe is CVE-2018-16877?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-16877 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.