The MQ Appliance messaging server must remove all export ciphers to protect the confidentiality and integrity of transmitted information.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-74861	MQMH-AS-001240	SV-89535r1_rule		Medium

Description
During the initial setup of a Transport Layer Security (TLS) connection to the messaging server, the client sends a list of supported cipher suites in order of preference. The messaging 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 messaging 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. To achieve FIPS 140-2 compliance on Windows, UNIX, and Linux systems, all key repositories have been created and manipulated using only FIPS-compliant software, such as runmqakm with the -fips option.

Description

During the initial setup of a Transport Layer Security (TLS) connection to the messaging server, the client sends a list of supported cipher suites in order of preference. The messaging 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 messaging 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. To achieve FIPS 140-2 compliance on Windows, UNIX, and Linux systems, all key repositories have been created and manipulated using only FIPS-compliant software, such as runmqakm with the -fips option.

STIG	Date
IBM MQ Appliance V9.0 AS Security Technical Implementation Guide	2017-06-09

Details

Check Text ( C-74719r1_chk )
To access the MQ Appliance CLI, enter: mqcli To identify the queue managers, enter: dspmq For each queue manager identified, run the command: runmqsc [queue name] DIS QMGR SSLFIPS If the value of "SSLFIPS" is set to "NO", this is a finding.

Fix Text (F-81477r1_fix)
To access the MQ Appliance CLI, for each queue manager, enter: mqcli runmqsc [queue manager name] ALTER QMGR SSLFIPS(YES) end