Security Bulletin: Open Source Apache Tomcat vulnerabilities affect IBM Tivoli Application Dependency Discovery Manager (CVE-2020-1935, CVE-2019-17569)

Security Bulletin

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-2020-1935
DESCRIPTION: Apache Tomcat is vulnerable to HTTP request smuggling, caused by a flaw when handling unusual Transfer-Encoding HTTP header. By sending a specially-crafted request, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176788 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2019-17569
DESCRIPTION: Apache Tomcat is vulnerable to HTTP request smuggling, caused by a flaw when handling unusual Transfer-Encoding HTTP header. By sending a specially-crafted request, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176784 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Tivoli Application Dependency Discovery Manager	7.3.0

Remediation/Fixes

Below eFix is prepared on top of 7.3.0.0 (7.3.0.1 - 7.3.0.7 not affected)

Fix	VRMF	APAR	How to acquire fix
efix_tomcat70100_201411291020.zip	7.3.0.0	None	Download eFix

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 - 7.3.0.7 are not affected as they use WebSphere Liberty Profile.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

18 May 2020: 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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Tips

Security Bulletin: Open Source Apache Tomcat vulnerabilities affect IBM Tivoli Application Dependency Discovery Manager (CVE-2020-1935, CVE-2019-17569)