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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1860
Security Bulletin: Non-configured connections could cause denial of service
          in IBM WebSphere MQ Internet Pass-Thru (CVE-2017-1118)
                               31 July 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM WebSphere MQ
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Solaris
                   Linux variants
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1118  

Reference:         ESB-2017.1821
                   ESB-2017.1769

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22006580

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Security Bulletin: Non-configured connections could cause denial of service
in IBM WebSphere MQ Internet Pass-Thru (CVE-2017-1118 )

Document information

More support for: WebSphere MQ
MQIPT

Software version: 2.0, 2.1

Operating system(s): Platform Independent

Reference #: 2006580

Modified date: 28 July 2017

Security Bulletin

Summary

When using the MQIPT SecurityManager, IP addresses that are not configured
in the MQIPT security policy file with the accept and resolve socket
permissions, cause MQIPT to stop responding to connection attempts.

Vulnerability Details

CVEID: CVE-2017-1118
DESCRIPTION: IBM WebSphere MQ Internet Pass-Thru could allow an attacker
to cause the MQIPT to stop responding due to an incorrectly configured
security policy.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/121156 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM WebSphere MQ Internet Pass-Thru v2.0 on all platforms

IBM WebSphere MQ Internet Pass-Thru v2.1 on all platforms

Remediation/Fixes

Download and apply the latest version of IBM WebSphere MQ Internet Pass-Thru,
2.1.0.3 from MS81:WebSphere MQ Internet Pass-Thru page.

Workarounds and Mitigations

None known

References
Complete CVSS v3 Guide
On-line Calculator v3

Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

26 July 2017

*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.

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