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Security Bulletin: Vulnerabilities in Apache Log4j affect IBM App Connect Enterprise V11, V12 and IBM Integration Bus V10 (CVE-2021-44832)

Security Bulletin


Vulnerabilities in Apache Log4j affect the logging infrastructure in the Kafka Nodes in IBM App Connect Enterprise v11, v12 and IBM Integration Bus v10 and the logging infrastructure in the TADataCollector command line tool in IBM App Connect Enterprise v11, v12. IBM App Connect Enterprise V11, V12 and IBM Integration Bus v10 have addressed the applicable CVE. Given current information and analysis, IBM Integration Bus V9 is not affected

Vulnerability Details

CVEID:   CVE-2021-44832
DESCRIPTION:   Apache Log4j could allow a remote attacker with permission to modify the logging configuration file to execute arbitrary code on the system. By constructing a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI , an attacker could exploit this vulnerability to execute remote code.
CVSS Base score: 6.6
CVSS Temporal Score: See: 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

IBM App Connect Enterprise V12.0.1.0 to V12.0.3.0

IBM App Connect Enterprise V11.0.0.0 to V11.0.0.15. (Note the mitigation described in Workarounds and Mitigations should also be applied to IBM App Connect Enterprise V11.0.0.16)

IBM Integration Bus V10.0.0.6 to V10.0.0.25


IBM strongly recommends addressing the vulnerability in the Kafka Nodes and TADataCollector command line tool now by applying the patches listed in this table and the work around if applicable. Fix and instruction information is available on Fix Central.
Note: This supersedes APARs IT39377 and IT39458


Remediation / Fix
IBM App Connect Enterprise V12
V12.0.1.0 to V12.0.3.0IT39515


Interim fix for APAR (IT39515) ) is available from

IBM Fix Central (distributed platforms)


 Interim APAR fix for Windows is available from IBM Fix Central IBM Fix Central IBM Fix Central

IBM App Connect Enterprise V11V11.0.0.0 to V11.0.0.15IT39515

Interim fix for APAR (IT39515)  is available  for v11.0.0.10- from

IBM Fix Central

IBM Integration Bus
V10.0.0.6 - V10.0.0.25IT39515

Interim fix for APAR (IT39515) is available for from

IBM Fix Central


Workarounds and Mitigations

In addition to the fix listed in the table above IBM also strongly recommends applying the remediation described below to the Integration Toolkit. Note this remediation should be applied to IBM App Connect Enterprise V11.0.0.0 to V11.0.0.16

Delete the following file:

Where version is a 3 digit log4j version number and <datestamp> is the build date of the plugin. For example:

Note that after applying this remediation it is not possible to install new patterns in the pattern explorer or install new features / software using the eclipse "Install Software or Update" dialog boxes.

Get Notified about Future Security Bulletins




Change History

07 Jan 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.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location


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Document Information

Modified date:
28 January 2022