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AUSCERT External Security Bulletin Redistribution
Security Bulletin: IBM WebSphere MQIPT Session IDs are
12 June 2015
AusCERT Security Bulletin Summary
Product: WebSphere MQ Internet Passthru
Operating System: AIX
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
CVE Names: CVE-2015-0173
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Security Bulletin: IBM WebSphere MQIPT Session IDs are predictable
More support for:
AIX, HP-UX, Linux, Solaris, Windows
The MQIPT Session IDs for HTTP communication that are generated by MQIPT V2.0
and later are predictable.
DESCRIPTION: IBM WebSphere MQ Internet Pass-Thru HTTP connection management
contains a security flaw which could allow interception of MQ message data for
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100928 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 Internet Pass-Thru (SupportPac MS81)
Versions 220.127.116.11 and earlier
Replace/upgrade MQIPT installations to IBM WebSphere MQ Internet Pass-Thru
18.104.22.168 or later.
Workarounds and Mitigations
Configure MQIPT to enable HTTPS and avoid using HTTP sessions.
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Complete CVSS Guide
On-line Calculator V2
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
11th 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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