12 June 2015
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1537 Security Bulletin: IBM WebSphere MQIPT Session IDs are predictable (CVE-2015-0173) 12 June 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebSphere MQ Internet Passthru Publisher: IBM Operating System: AIX HP-UX Linux variants Solaris Windows Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-0173 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21699547 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM WebSphere MQIPT Session IDs are predictable (CVE-2015-0173) Security Bulletin Document information More support for: WebSphere MQ MQIPT Software version: 2.0, 2.1 Operating system(s): AIX, HP-UX, Linux, Solaris, Windows Software edition: All Editions Reference #: 1699547 Modified date: 2015-06-11 Summary The MQIPT Session IDs for HTTP communication that are generated by MQIPT V2.0 and later are predictable. Vulnerability Details CVEID: CVE-2015-0173 DESCRIPTION: IBM WebSphere MQ Internet Pass-Thru HTTP connection management contains a security flaw which could allow interception of MQ message data for non-HTTPS connections. CVSS Base Score: 4.3 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100928 for the current score 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 22.214.171.124 and earlier Remediation/Fixes Replace/upgrade MQIPT installations to IBM WebSphere MQ Internet Pass-Thru 126.96.36.199 or later. Workarounds and Mitigations Configure MQIPT to enable HTTPS and avoid using HTTP sessions. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS Guide On-line Calculator V2 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 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. Disclaimer 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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