If a Java or JMS client application uses a channel that does not use SSL/TLS, then setting "PasswordProtection=ALWAYS" in a queue manager's qm.ini file does not stop IBM WebSphere MQ sending a password in clear text across a network during the connection.
Applications that do not set the "USE_MQCSP_AUTHENTICATION_PROPERTY" or "USER_AUTHENTICATION_MQCSP" properties to "true" on the connection are potentially vulnerable.
DESCRIPTION: Under non-standard configurations, IBM WebSphere MQ might send password data in clear text over the network. This data could be intercepted using man in the middle techniques.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114722 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
IBM MQ V8.0
IBM MQ V18.104.22.168 and previous maintenance levels.
IBM MQ V9 CD
IBM MQ V9.0.1 only
IBM MQ V9 LTS
IBM MQ V22.214.171.124 only
IBM MQ V8.0
Apply 126.96.36.199 maintenance level.
IBM MQ V9.0.1 CD
Upgrade to 9.0.2
IBM MQ V9 LTS
Apply Fix pack 188.8.131.52
Workarounds and Mitigations
Use SSL/TLS to protect data by specifying a channel cipherspec, and configure client applications to set the "USE_MQCSP_AUTHENTICATION_PROPERTY" (Java client) or "USER_AUTHENTICATION_MQCSP" (JMS client) properties to "true" on the connection.
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20 February 2017: Original version published.
28 February 2017: Clarified affected environments and mitigations.
24 May 2017: Details for 184.108.40.206 added
19 June 2017: HP & Solaris specifics removed
*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.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
15 June 2018