Security Bulletin: The version of WebSphere Liberty shipped with IBM MQ is vulnerable to CVE-2020-4590

Security Bulletin

Summary

IBM MQ ships a version of WebSphere Liberty to provide the Web Console functionality. This version of liberty is vulnerable to CVE-2020-4590.

Vulnerability Details

CVEID: CVE-2020-4590
DESCRIPTION: IBM WebSphere Application Server Liberty 17.0.0.3 through 20.0.0.9 running oauth-2.0 or openidConnectServer-1.0 server features is vulnerable to a denial of service attack conducted by an authenticated client. IBM X-Force ID: 184650.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/184650 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	9.2 CD
IBM MQ	9.2 LTS

Remediation/Fixes

This issue is addressed in MQ releases by APAR IT34473

IBM MQ versions 9.1 LTS

Apply Fixpack 9.1.0.7

IBM MQ version 9.2 LTS

Apply the WebSphere Liberty iFix listed on CVE-2020-4590

IBM MQ version 9.2 CD

Upgrade to IBM MQ 9.2.1

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

27 Jan 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: The version of WebSphere Liberty shipped with IBM MQ is vulnerable to CVE-2020-4590