Security Bulletin: IBM Cloud Pak for Multicloud Management Monitoring is potentially vulnerable to execution of arbitrary code due to its use of Apache Log4j (CVE-2021-4104)

Security Bulletin

Summary

Apache Log4j is used by IBM Cloud Pak for Multicloud Management Monitoring as part of its logging infrastructure. Apache Log4j v1.2 has been removed and replaced by Log4j v2.17.1. Components that use Apache Log4j v1.2 are not exposed outside the cluster and are not configured to use the vulnerable Log4j v1 classes. Furthermore, it will take extraordinary measures by a malicious insider to attempt to reconfigure the components to be vulnerable.

Vulnerability Details

CVEID: CVE-2021-4104
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data when the attacker has write access to the Log4j configuration. If the deployed application is configured to use JMSAppender, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Cloud Pak for Multicloud Management Monitoring	2.0 - 2.3 Fix Pack 4

Remediation/Fixes

To address the vulnerability, IBM strongly recommends you to upgrade IBM Cloud Pak for Multicloud Management to 2.3 Fix Pack 5. For upgrading instructions, see https://www.ibm.com/docs/en/cloud-paks/cp-management/2.3.x?topic=installation-upgrade.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

29 Jun 2022: 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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Document Information

Modified date:
13 July 2022

Initial Publish date:
29 June 2022

UID

ibm16603367

Tips

Security Bulletin: IBM Cloud Pak for Multicloud Management Monitoring is potentially vulnerable to execution of arbitrary code due to its use of Apache Log4j (CVE-2021-4104)