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AUSCERT External Security Bulletin Redistribution
Security Bulletin: IBM WebSphere MQ Explorer does not
protect credentials (CVE-2015-1967)
24 June 2015
AusCERT Security Bulletin Summary
Product: IBM WebSphere MQ
Operating System: Linux variants
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2015-1967
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Security Bulletin: IBM WebSphere MQ Explorer does not protect credentials
More support for:
MQ Explorer / Remote admin
IBM WebSphere MQ Explorer can be configured to send userid and password
credentials to a remote queue manager for authentication. When compatibility
mode is unchecked in MQ Explorer, the password should be sent in a protected
form in the absence of any transport level security, such as TLS.
An error in the MQ Explorer implementation in IBM WebSphere MQ 184.108.40.206
and earlier maintenance always causes compatibility mode to be used and
password credentials to be sent in cleartext.
DESCRIPTION: IBM WebSphere MQ could allow authentication credentials to pass
in plaintext, even when the server is configured to protect passwords. An
attacker could obtain this information using man in the middle techniques.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/103583 for the
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
IBM WebSphere MQ 220.127.116.11 and earlier maintenance levels
The error in MQ Explorer is corrected in fix pack 18.104.22.168
Workarounds and Mitigations
IBM strongly recommends using transport level security on the channel
connection between MQ Explorer and remote queue managers by configuring
a channel CipherSpec.
A channel that is configured to use a non-NULL CipherSpec will not only
protect any password credentials, but all data exchanged between MQ Explorer
and the queue manager.
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IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
23 June 2015: Original version published
*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.
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