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Security Bulletin: IBM MQ AMQP channels fail to block connections restricted by SSLPEER setting (CVE-2020-4320)

Security Bulletin


Summary

An error was found within the SSLPEER logic within a AMQP channel that meant it would not block/allow certificates as expected.

Vulnerability Details

CVEID:   CVE-2020-4320
DESCRIPTION:   IBM MQ Appliance, IBM MQ, AMQP Channels do not correctly block or allow clients based on the certificate distinguished name SSLPEER setting.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/177403 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM MQ 9.1 LTS
IBM MQ 9.0 LTS
IBM MQ 8.0
IBM MQ 9.1 CD

Remediation/Fixes

IBM MQ and IBM MQ Appliance V8
Apply FixPack 8.0.0.15

IBM MQ V9 LTS
Apply FixPack 9.0.0.10

IBM MQ and IBM MQ Appliance V9.1 LTS
Apply FixPack 9.1.0.5

IBM MQ and IBM MQ Appliance V9.1 CD
Apply FixPack 9.1.5

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

11 Mar 2020: Initial Publication

*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

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Document Information

Modified date:
15 June 2020

UID

ibm15736885