Security Bulletin: IBM App Connect for Healthcare is vulnerable to arbitrary code execution due to Apache Log4j (CVE-2021-4104)

Summary

Vulnerabilities in Apache Log4j affect the logging infrastructure in the ATNAAudit node and the XDSConsumer pattern in IBM App Connect for Healthcare. IBM App Connect for Healthcare have addressed these vulnerabilities, the fix includes Apache Log4j 2.17.1

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

IBM App Connect for Healthcare 5.0.0.0
IBM App Connect for Healthcare 5.0.0.1
IBM App Connect for Healthcare 6.0.1.0

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by applying the patches listed in this table.

Interim fix for APAR (IT39653 ) is available from

5.0.0.1 IBM Fix Central

IBM App Connect for Healthcare| 6.0.1.0| IT39653|

Interim fix for APAR (IT39653 ) is available from

6.0.1.0 IBM Fix Central

Workarounds and Mitigations

As detailed above in the Remediation / Fixes Section.