Security Bulletin: Vulnerabilities in Apache Log4j affect IBM App Connect Enterprise V11, V12 (CVE-2021-45105)

Summary

Vulnerabilities in Apache Log4j2 affect the logging infrastructure in the TADataCollector command line tool in IBM App Connect Enterprise v11, v12. IBM App Connect Enterprise V11, V12 have addressed the applicable CVE. Given current information and analysis, IBM Integration Bus v10 and V9 are not affected.

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM App Connect Enterprise V11.0.0.7 to V11.0.0.15

IBM App Connect Enterprise V12.0.1.0 to V12.0.3.0

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by applying the patches listed in this table. This superceeds apar IT39377

Interim fix for APAR (IT39458) is available from

IBM Fix Central (distributed platforms)

Interim fix for Windows is available from

12.0.1.0 IBM Fix Central

12.0.2.0 IBM Fix Central

12.0.3.0 IBM Fix Central

IBM App Connect Enterprise V11| V11.0.0.7 to V11.0.0.15| IT39458|

Interim fix for APAR (IT39458) is available for v11.0.0.10-11.0.0.15 from

IBM Fix Central(distributed platforms)

Workarounds and Mitigations

None