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ESB-2014.1732 - [Appliance] IBM Security Access Manager for Web: Denial of service - Remote/unauthenticated

Date: 01 October 2014

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1732
Security Bulletin: Denial of Service when using e-community single sign on
          in IBM Security Access Manager for Web (CVE-2014-4809)
                              1 October 2014

===========================================================================

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

Product:           IBM Security Access Manager for Web
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-4809  

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21685246

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Denial of Service when using e-community single sign on in
IBM Security Access Manager for Web (CVE-2014-4809)

Document information

More support for:

IBM Security Access Manager for Web

WebSEAL

Software version:

7.0, 8.0.0.2, 8.0.0.4

Operating system(s):

All Platforms

Reference #:

1685246

Modified date:

2014-09-29

Security Bulletin

Summary

When using e-community single sign on (ECSSO), the WebSEAL component of IBM 
Security Access Manager for Web could become unresponsive under certain 
circumstances, possibly resulting in denial of service.

Vulnerability Details

CVE ID: CVE-2014-4809

DESCRIPTION: When configured to use e-community single sign on (ECSSO), the 
WebSEAL component of IBM Security Access Manager for Web could become 
unresponsive if a number of conditions exist.

The vulnerability can be accessed from a remote network, is of high complexity
and does not require authentication. A successful exploit could not compromise
the confidentiality of the system, could not compromise the integrity of the 
system and could completely compromise the accessibility of the system.

CVSS:

CVSS Base Score: 5.4

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/95376 for the 
current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:N/AC:H/Au:N/C:N/I:N/A:C)

Affected Products and Versions

IBM Security Access Manager for Web version 7.0 appliance: All firmware 
versions.

IBM Security Access Manager for Web version 8.0: Firmware versions 8.0.0.2, 
8.0.0.3, and 8.0.0.4

Remediation/Fixes

IBM has provided patches for all affected versions. Follow the installation 
instructions in the README files included with the patch.

Product 					VRMF 		APAR 	Remediation/First Fix

IBM Security Access Manager for Web - 7.0 	7.0.0.0
						7.0.0.1
						7.0.0.2
						7.0.0.3
						7.0.0.4
						7.0.0.5
						7.0.0.6
						7.0.0.7
						7.0.0.8 	IV64915 7.0.0-ISS-WGA-IF0009

IBM Security Access Manager for Web - 8.0 	8.0.0.2
						8.0.0.3
						8.0.0.4 	IV64915 8.0.0-ISS-WGA-FP0005

Workarounds and Mitigations

This vulnerability can be mitigated by disabling support for e-community 
single sign on.

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

None

Change History

29 September 2014: 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--------------------

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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