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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.1216
 Security vulnerability in IBM HTTP Server for z/OS Version 5.3 (PM79239)
                             20 December 2012

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

Product:           IBM HTTP Server
Publisher:         IBM
Operating System:  z/OS
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-5955  

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21620945

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Security vulnerability in IBM HTTP Server for z/OS Version 5.3 (PM79239)

Flash (Alert)

Abstract

IBM HTTP Server for z/OS Version 5.3 could allow a remote attacker to execute 
arbitrary commands on the system.

Content

Vulnerability Details:

CVE ID: CVE-2012-5955

CVSS:

CVSS Base Score: 10
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80684 for the 
current score
CVSS Environmental Score*: Undefined
CVSS String: (AV:N/AC:L/AU:N/C:C/I:C/A:C)

Versions Affected :

    IBM HTTP Server for z/OS Version 5.3

Solution:
For IBM HTTP Server for z/OS Version 5.3

    Apply PTF UK90469 or later which includes APAR PM79239 through normal 
    customer ordering channels. 

Important note from IBM Support: IBM strongly suggests that all System z 
customers be subscribed to the System z Security Portal to receive the latest 
critical System z security and integrity service. If you are not subscribed, 
see the instructions at the System z Security Portal. Important security and 
integrity APARs and associated fixes will be posted to this portal. IBM 
suggests that any security or integrity fix be applied as soon as possible to
minimize any potential risk.

Workaround(s): None.

Mitigation(s): None.

REFERENCES:

    Complete CVSS Guide
    On-line Calculator V2
    X-Force Vulnerability Database 

RELATED INFORMATION:

    IBM Product Security Incident Response Blog
    IBM Secure Engineering Web Portal

CHANGE HISTORY:

    19 December 2012: Original copy 

*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 Flash.

Note: 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.

Copyright and trademark information

IBM, the IBM logo and ibm.com are trademarks of International Business 
Machines Corp., registered in many jurisdictions worldwide. Other product and 
service names might be trademarks of IBM or other companies. A current list of 
IBM trademarks is available on the Web at "Copyright and trademark information" 
at www.ibm.com/legal/copytrade.shtml.

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