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Security Bulletin: IBM MQ is vulnerable to an issue within Pacemaker. (CVE-2020-25654)

Security Bulletin


Summary

An issue was identified with Pacemaker which is used by IBM MQ to supply RDQM functionality.

Vulnerability Details

CVEID:   CVE-2020-25654
DESCRIPTION:   ClusterLabs Pacemaker could allow a local attacker to bypass security restrictions, caused by an access control list bypass flaw. By sending a specially-crafted request using IPC communication with various daemons, an attacker could exploit this vulnerability to perform certain tasks prevented by ACLs.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190582 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
IBM MQ 9.2 CD
IBM MQ 9.2 LTS
IBM MQ 9.1 CD
IBM MQ 9.1 LTS

Remediation/Fixes

This issue is resolved under APAR IT35522.

IBM MQ 9.1 LTS

Apply fix pack 9.1.0.8

IBM MQ 9.2 LTS

Apply fix pack 9.2.0.2

IBM MQ 9.1 CD and 9.2 CD

Upgrade to IBM MQ 9.2.2

Workarounds and Mitigations

Only applicable to IBM MQ installations with an RDQM HA group configured.

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

This issue was discovered by Ken Gaillot (Red Hat).

Change History

17 Jun 2021: Initial Publication
21 Jul 2021 : Clarification of affected configuration

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"ARM Category":[{"code":"a8m0z00000008HvAAI","label":"Components and Features-\u003EHigh Availability (HA)-\u003ERDQM"},{"code":"a8m0z00000008P6AAI","label":"Components and Features-\u003EQueue Managers"}],"ARM Case Number":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"9.1.0;9.2.0"}]

Document Information

Modified date:
21 July 2021

UID

ibm16464787