Security Bulletin: Open Source Apache Tomcat vulnerabilities affect IBM Tivoli Application Dependency Discovery Manager (CVE-2021-30640)

Summary

Multiple vulnerabilities in Open Source Apache Tomcat reported by The Apache Software Foundation affect IBM Tivoli Application Dependency Discovery Manager (TADDM).

Vulnerability Details

CVEID:CVE-2021-30640
**DESCRIPTION:**Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by improper authentication validation in the JNDI Realm. By sending a specially-crafted request using various user names, an attacker could exploit this vulnerability to bypass some of the protection provided by the LockOut Realm.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205213 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

Affected Products and Versions

Remediation/Fixes

Below eFix is prepared on top of 7.3.0.0 (7.3.0.1 - 7.3.0.8 not affected)

Please get familiar with eFix readme in etc/<efix_name>_readme.txt
Note that the eFix requires manual deletion of the external/apache-tomcat directory.

Workarounds and Mitigations

The above eFix is applicable only to 7.3.0.0 and can be downloaded and applied directly.

Note: TADDM 7.3.0.1 - 7.3.0.8 are not affected as they use WebSphere Liberty Profile.