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
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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Document Information
Modified date:
05 April 2020
UID
ibm16153231