Security Bulletin: IBM Cloud Pak for Multicloud Management Monitoring is vulnerable to arbitrary code execution due to its use of Logback (CVE-2021-42550)

Summary

Logback is used by IBM Cloud Pak for Multicloud Management Monitoring in its cassandra component to write logs. This vulnerability is limited to a malicious insider who can find and manipulate the logging configuration files.

Vulnerability Details

CVEID:CVE-2021-42550
**DESCRIPTION:**Logback could allow a remote authenticated attacker to execute arbitrary code on the system. By using a specially-crafted configuration, an attacker could exploit this vulnerability to execute arbitrary code loaded from LDAP servers.
CVSS Base score: 6.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215533 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

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.&gt;

Workarounds and Mitigations

None