CVE-2020-25654

HIGH EPSS 78.3%

Published Nov 24, 20205y ago · Modified Jun 17, 20262w ago

7.2 CVSS 3.1

High

Published Nov 24, 2020 5y ago

Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score

7.2

Exploitability

1.2

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required High

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

78.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-284

Affected Products 4

Vendor	Product	Version	Range
clusterlabs	pacemaker	*	<1.1.23
clusterlabs	pacemaker	*	≥2.0.0 – <2.0.3
clusterlabs	pacemaker	2.0.5	any
debian	debian_linux	9.0	any

References 5

bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1888191

Issue TrackingThird Party Advisory
lists.clusterlabs.org https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html

Mailing ListVendor Advisory
lists.debian.org https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html

Mailing ListThird Party Advisory
seclists.org https://seclists.org/oss-sec/2020/q4/83

Mailing ListThird Party Advisory
security.gentoo.org https://security.gentoo.org/glsa/202309-09

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.