Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2013.1270
Security Bulletin: Vulnerability IBM Java XML Parser Used in IBM System
Networking Switch Center (CVE-2013-4002)
12 September 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM System Networking Switch Center
Publisher: IBM
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2013-4002
Reference: ESB-2013.1237
ESB-2013.1175
ESB-2013.1134
ESB-2013.1125
ESB-2013.1120
ESB-2013.1099
ESB-2013.1077
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=isg3T1019879
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Vulnerability IBM Java XML Parser Used in IBM System
Networking Switch Center (CVE-2013-4002)
Flash (Alert)
Document information
System Networking Switch Center
Version:
7.1, 7.1.1.0, 7.1.2.0
Operating system(s):
Platform Independent
Reference #:
T1019879
Modified date:
2013-09-10
Abstract
IBM System Networking Switch Center ships with IBM Java 7 JRE. This JRE
contains a variant of Apache-J XML parser (XM4J) that is vulnerable to a denial
of service attack triggered by malformed XML data.
Content
VULNERABILITY DETAILS:
CVE ID: CVE-2013-4002
IBM CVSS SCORE: 7.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/85260 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)
DESCRIPTION:
The Apache Xerces-J XML parser is vulnerable to a denial of service attack,
triggered by malformed XML data. The malformed data causes the XML parser to
consume CPU resource for several minutes before the data is eventually
rejected. This behavior can be used to launch a denial of service attack
against IBM System Networking Switch Center, which uses IBM Java 7. IBM Java 7
contains a variant of the Apache Xerces-J XML parser (XML4J) to process XML
data supplied by remote users. XML data is only processed by IBM System
Networking Switch Center via a REST API that is used for management of
information in the VSI DB (HTTPs POST and PUT commands).
AFFECTED PRODUCTS AND VERSIONS:
This vulnerability affects all versions prior to 7.1.3.
REMEDIATION:
IBM recommends upgrading affected versions of IBM Systems Networking Switch
Center to version 7.1.3, which contains a fix for this vulnerability.
WORKAROUND:
None.
MITIGATION:
None.
REFERENCES:
- - Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
- - X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/85260
- - MITRE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4002
RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
ACKNOWLEDGEMENT:
None.
CHANGE HISTORY:
<Sept 10, 2013>: Original Copy 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 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.
- --------------------------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 auscert@auscert.org.au
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. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=fGPS
-----END PGP SIGNATURE-----