9

CVE-2020-25654: clusterlabs pacemaker Improper Access Control

CVSS: 9.0v2.0HighModified
AliasesMGASA-2020-0409SUSE-SU-2020:3054-1SUSE-SU-2020:3073-1
Published 24-11-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-25654 is a high (CVSS 9.0) Improper Access Control vulnerability in clusterlabs pacemaker. EPSS estimates a 1.87% chance of exploitation in the next 30 days, higher than 78.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
1.87%
0%100%
Low · -0.16 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DLA-2519-1

Timeline

  1. 24-11-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.87%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

-0.16 pp

From 2.03% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.87%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat16 products
  • pacemaker< 0:2.0.3-5.el8_2.3 | < 0:1.1.23-1.el7_9.1 | < 0:2.0.4-6.el8_3.1
  • pacemaker-cli< 0:2.0.3-5.el8_2.3 | < 0:1.1.23-1.el7_9.1 | < 0:2.0.4-6.el8_3.1
  • pacemaker-cli-debuginfo< 0:2.0.3-5.el8_2.3 | < 0:2.0.4-6.el8_3.1
  • pacemaker-cluster-libs< 0:2.0.3-5.el8_2.3 | < 0:1.1.23-1.el7_9.1 | < 0:2.0.4-6.el8_3.1
  • pacemaker-cluster-libs-debuginfo< 0:2.0.3-5.el8_2.3 | < 0:2.0.4-6.el8_3.1
Suse7 products
  • pacemaker&distro=SUSE Linux Enterprise High Availability Extension 12 SP3< 1.1.16-6.23.1
  • pacemaker&distro=SUSE Linux Enterprise High Availability Extension 12 SP4< 1.1.19+20181105.ccd6b5b10-3.22.1
  • pacemaker&distro=SUSE Linux Enterprise High Availability Extension 12 SP5< 1.1.23+20200622.28dd98fad-3.9.2
  • pacemaker&distro=SUSE Linux Enterprise High Availability Extension 15< 1.1.18+20180430.b12c320f5-3.27.1
  • pacemaker&distro=SUSE Linux Enterprise High Availability Extension 15 SP1< 2.0.1+20190417.13d370ca9-3.15.1
Debian2 products
  • pacemaker< 2.0.5~rc2-1 | < 2.0.1-5+deb10u1
  • debian_linuxEOL9.0
Opensuse2 products
  • pacemaker&distro=openSUSE Leap 15.1< 2.0.1+20190417.13d370ca9-lp151.2.16.4
  • pacemaker&distro=openSUSE Leap 15.2< 2.0.4+20200616.2deceaa3a-lp152.2.3.1
Clusterlabs1 product
  • pacemaker< 1.1.23 | ≥ 2.0.0, < 2.0.3 | 2.0.5:rc1
Mageia1 product
  • pacemaker< 1.1.19-2.2.mga7
Ubuntu1 product
  • pacemaker< 1.1.14-2ubuntu1.9 | < 1.1.18-0ubuntu1.3 | < 2.0.3-3ubuntu4.1

7 vendors · 30 products

References

36 links
Show all 36 references