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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.1045
                  IBM WebSphere MQ FDC denial of service
                             16 November 2010

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

Product:           IBM WebSphere MQ
Publisher:         ISS
Operating System:  Windows
                   Linux variants
                   HP-UX
                   Solaris
                   AIX
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-2638  

Original Bulletin: 
   http://xforce.iss.net/xforce/xfdb/63147

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IBM WebSphere MQ FDC denial of service
wmq-fdc-dos (63147) 	
The risk level is classified as Low

Description:

WebSphere MQ is vulnerable to a denial of service, caused by a loop which can 
occur when processing an FDC with probe RM680004. By forcing the creation of 
the FDC with probe RM680004, a local or remote attacker could exploit this 
vulnerability to cause the consumption of all disk resources resulting in a 
denial of service.

  *CVSS:
  Base Score: 			4
  Access Vector: 		Network
  Access Complexity: 		Low
  Authentication: 		Single
  Confidentiality Impact: 	None
  Integrity Impact: 		None
  Availability Impact: 		Partial
 
  Temporal Score: 		3
  Exploitability: 		Unproven
  Remediation Level: 		Official-Fix
  Report Confidence: 		Confirmed

Consequences:

Denial of Service

Remedy:

For WebSphere MQ 7.0:
Apply the latest Fix Pack (7.0.1.5 or later) or APAR IC71123. See References.

References:

    * IBM APAR IC71123: Fixes by version for WebSphere MQ.
    * CVE-2010-2638: ** RESERVED ** This candidate has been reserved by an 
      organization or individual that will use it when announcing a new 
      security problem. When the candidate has been publicized, the details 
      for this candidate will be provided.

Platforms Affected:

    * IBM WebSphere MQ 7.0

Reported:

Nov 10, 2010

The information within this database may change without notice. Use of this 
information constitutes acceptance for use in an AS IS condition. There are 
NO warranties, implied or otherwise, with regard to this information or its 
use. Any use of this information is at the user's risk. In no event shall the
author/distributor (IBM Internet Security Systems X-Force) be held liable for 
any damages whatsoever arising out of or in connection with the use or spread
of this information.

For corrections or additions please email iss-webmaster

* 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.

The information within this database may change without notice. Use of this 
information constitutes acceptance for use in an AS IS condition. There are 
NO warranties, implied or otherwise, with regard to this information or its 
use. Any use of this information is at the user's risk. In no event shall IBM 
be held liable for any damages whatsoever arising out of or in connection with 
the use or spread of this information.

About IBM Internet Security Systems
IBM Internet Security Systems is a trusted security advisor to thousands of 
the world's leading businesses and governments, helping to provide 
pre-emptive protection for networks, desktops and servers. The IBM Proventia? 
integrated security platform is designed to automatically protect against 
both known and unknown threats, helping to keep networks up and running and 
shield customers from online attacks before they impact business assets. IBM 
Internet Security Systems products and services are based on the proactive 
security intelligence of its X-Force? research and development team ? an 
unequivocal world authority in vulnerability and threat research. The IBM 
Internet Security Systems product line is also complemented by comprehensive 
Managed Security Services and Professional Security Services. For more 
information, visit the IBM Internet Security Systems Web site at www.iss.net 
or call 800-776-2362.

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