Security Bulletin: Vulnerablity in Apache Log4j affects IBM Tivoli Composite Application Manager for Application Diagnostics (CVE-2021-44228)

Summary

The following security vulnerability has been identified in the WebSphere Application Server. Apache Log4j 2.x is not used by IBM Tivoli Composite Application Manager for Application Diagnostics, but log4j-1.2.4.jar is present in one of the ear files installed on WebSphere Application Server and should be removed from the installation.

Vulnerability Details

CVEID:CVE-2021-44228
**DESCRIPTION:**Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the failure to protect against attacker controlled LDAP and other JNDI related endpoints by JNDI features. By sending a specially crafted code string, an attacker could exploit this vulnerability to load arbitrary Java code on the server and take complete control of the system. Note: The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading.

1. Follow the WebSphere security bulletin, <https://www.ibm.com/support/pages/node/6525706&gt; to update WebSphere Application Servers.

2. The image of IBM Tivoli Composite Application Manager for Application Diagnostics Managing Server 7.1.0.4.4 has been refreshed to remove the log4j-1.2.4.jar library.

Workarounds and Mitigations

One ear file, Itcamdata.ear in IBM Tivoli Composite Application Manager for Application Diagnostics Managing Server includes log4j-1.2.4.jar library. Itcamdata.ear is not in use any more and should be removed from the system where the Managing Server is installed. Procedure to remove Itcamdata.ear :

1. Bring up the WebSphere application server console where MSVE is installed.

2. Go to Applications ==> Application Types ==> WebSphere enterprise applications, select Itcamdata application, stop and then uninstall it.