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AUSCERT External Security Bulletin Redistribution
ESB-2012.1012
IBM WebSphere Message Broker Security Vulnerability: Using WS-Security may
result in a user gaining elevated privileges (CVE-2011-1377)
22 October 2012
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Message Broker
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2011-1377
Reference: ESB-2012.0385
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21612744
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IBM WebSphere Message Broker Security Vulnerability: Using WS-Security may
result in a user gaining elevated privileges (CVE-2011-1377)
Flash (Alert)
Abstract
There is a possible security exposure when using WS-Security which may result
in a user gaining elevated privileges. This affects message flows using SOAP
Nodes with WS-Security and LTPA tokens.
Content
VULNERABILITY DETAILS
CVE ID: CVE-2011-1377
DESCRIPTION:
IBM WebSphere Message Broker Applications could experience weaker than expected
security when using web services security (WS-Security). A user could randomly
gain elevated privileges on the provider system. WS-Security may assign the
identity of a previously processed LTPA token to a new inbound LTPA token after
authentication. This impacts message flows using SOAP Nodes with WS-Security
and LTPA tokens.
CVSS:
CVSS Base Score: 2.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/71319 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:S/C:N/I:P/A:N)
*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.
AFFECTED PLATFORMS:
IBM WebSphere Message Broker V8.0 and V7.0 are affected on all platforms
REMEDIATION:
None known.
FIX
For WebSphere Message Broker V7.0 apply fix pack V7.0.0.5
http://www.ibm.com/support/docview.wss?&uid=swg24033453
For WebSphere Message Broker V8.0 contact IBM Support to request the fix for
APAR IC86916.
WORKAROUND:
None known, apply fixes
MITIGATION
None known
REFERENCES:
Complete CVSS Guide (http://www.first.org/cvss/cvss-guide.html)
On-line Calculator V2 (http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2)
X-Force Vulnerability Database (http://xforce.iss.net/xforce/xfdb/71319)
CVE-2011-1377 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1377)
CHANGE HISTORY:
<18/10/2012>: Original Copy Published
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.
Related information
IBM Secure Engineering Web Portal
https://www-304.ibm.com/jct03001c/security/secure-engineering/
IBM Product Security Incident Response Blog
https://www-304.ibm.com/connections/blogs/PSIRT/?lang=en_us
Product Alias/Synonym
WMB MB
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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