7.2
HIGH
CVE-2020-25654
Pacemaker ACL Bypass Vulnerability
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.

INFO

Published Date :

Nov. 24, 2020, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:18 a.m.

Source :

secalert@redhat.com

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2020-25654 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Clusterlabs pacemaker
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-25654.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1888191 Issue Tracking Third Party Advisory
https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html Mailing List Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html Mailing List Third Party Advisory
https://seclists.org/oss-sec/2020/q4/83 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202309-09
https://bugzilla.redhat.com/show_bug.cgi?id=1888191 Issue Tracking Third Party Advisory
https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html Mailing List Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html Mailing List Third Party Advisory
https://seclists.org/oss-sec/2020/q4/83 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202309-09

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-25654 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-25654 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1888191
    Added Reference https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html
    Added Reference https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html
    Added Reference https://seclists.org/oss-sec/2020/q4/83
    Added Reference https://security.gentoo.org/glsa/202309-09
  • CVE Modified by secalert@redhat.com

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by secalert@redhat.com

    Sep. 29, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202309-09 [No Types Assigned]
  • Reanalysis by nvd@nist.gov

    Oct. 21, 2022

    Action Type Old Value New Value
  • Modified Analysis by nvd@nist.gov

    Mar. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by secalert@redhat.com

    Jan. 07, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html [No Types Assigned]
  • Initial Analysis by nvd@nist.gov

    Dec. 04, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1888191 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1888191 Issue Tracking, Third Party Advisory
    Changed Reference Type https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html No Types Assigned https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html Mailing List, Vendor Advisory
    Changed Reference Type https://seclists.org/oss-sec/2020/q4/83 No Types Assigned https://seclists.org/oss-sec/2020/q4/83 Mailing List, Third Party Advisory
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:* versions up to (excluding) 1.1.23 *cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.0.3 *cpe:2.3:a:clusterlabs:pacemaker:2.0.5:rc1:*:*:*:*:*:*
  • CVE Modified by secalert@redhat.com

    Dec. 02, 2020

    Action Type Old Value New Value
    Changed Description An ACL bypass flaw was found in pacemaker before 1.1.24-rc1 and 2.0.5-rc2. 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. 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.
    Removed Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HMSWPVSLEUN4QCZPHKBMBZVUXLKKNSMM/ [No Types Assigned]
    Removed Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7YJDH5DNOTKZJOHFWSACULGPJUOJMZ/ [No Types Assigned]
  • CVE Modified by secalert@redhat.com

    Nov. 27, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HMSWPVSLEUN4QCZPHKBMBZVUXLKKNSMM/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7YJDH5DNOTKZJOHFWSACULGPJUOJMZ/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
10010090908080707060605050404030302020101000March 7, 2023March 7, 2023Sept. 30, 2023Sept. 30, 2023Dec. 17, 2024Dec. 17, 2024March 17, 2025March 17, 2025March 29, 2025March 29, 2025March 30, 2025March 30, 2025
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-25654 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} -0.18%

score

0.20396

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability