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

Security Bulletin

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

Product	VRMF	APAR	Remediation / Fix
IBM App Connect Enterprise V12	V12.0.1.0 to V12.0.3.0	IT39458	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

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

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