Security Bulletin: Vulnerabilities in Apache Tomcat affects IBM Platform Symphony

Security Bulletin

Summary

This interim fix provides instructions on upgrading Apache Tomcat to v8.5.53 in IBM Platform Symphony 7.1 Fix Pack 1 in order to address security vulnerabilities CVE-2020-1938, CVE-2020-1935 and CVE-2019-17569 in Apache Tomcat.

Vulnerability Details

CVEID: CVE-2020-1938
DESCRIPTION: Apache Tomcat could allow a remote attacker to execute arbitrary code on the system, caused by a file read/inclusion vulnerability in the AJP connector. By sending a specially-crafted request, an attacker could exploit this vulnerability to read web application files from a vulnerable server and upload malicious JavaServer Pages (JSP) code within a variety of file types and execute arbitrary code on the system. Note: This vulnerability is known as Ghostcat.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176562 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

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 Platform Symphony	7.1 Fix Pack 1

Remediation/Fixes

Download the interim fix from IBM Fix Central, then follow the steps in the accompanying Readme to apply the interim fix on the hosts in your cluster:

Product	Remediation/First Fix
IBM Platform Symphony 7.1 Fix Pack 1	sym-7.1-build541327

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

02 Apr 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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Security Bulletin: Vulnerabilities in Apache Tomcat affects IBM Platform Symphony