tc Server UI must remove all export ciphers to protect the confidentiality and integrity of transmitted information.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-89109	VROM-TC-000985	SV-99759r1_rule		Medium

Description
During the initial setup of a Transport Layer Security (TLS) connection to the web server, the client sends a list of supported cipher suites in order of preference. The web server will reply with the cipher suite it will use for communication from the client list. If an attacker can intercept the submission of cipher suites to the web server and place, as the preferred cipher suite, a weak export suite, the encryption used for the session becomes easy for the attacker to break, often within minutes to hours. An essential configuration file for tc Server is “catalina.properties”. Properly configured, tc Server will not provide the weaker, export ciphers.

Description

During the initial setup of a Transport Layer Security (TLS) connection to the web server, the client sends a list of supported cipher suites in order of preference. The web server will reply with the cipher suite it will use for communication from the client list. If an attacker can intercept the submission of cipher suites to the web server and place, as the preferred cipher suite, a weak export suite, the encryption used for the session becomes easy for the attacker to break, often within minutes to hours. An essential configuration file for tc Server is “catalina.properties”. Properly configured, tc Server will not provide the weaker, export ciphers.

STIG	Date
VMware vRealize Operations Manager 6.x tc Server Security Technical Implementation Guide	2018-10-12

Details

Check Text ( C-88801r1_chk )
At the command prompt, execute the following command: grep vmware-ssl.ssl.ciphers.list /usr/lib/vmware-vcops/tomcat-web-app/conf/catalina.properties If any export ciphers are listed, this is a finding. Note: To view a list of export ciphers, at the command prompt execute the following command: openssl ciphers 'EXP'

Fix Text (F-95851r1_fix)
Navigate to and open /usr/lib/vmware-vcops/tomcat-web-app/conf/catalina.properties. Navigate to the “vmware-ssl.ssl.ciphers.list” setting. Remove any export ciphers from “vmware-ssl.ssl.ciphers.list”. Note: To view a list of export ciphers, at the command prompt execute the following command: openssl ciphers 'EXP'