IBM WebSphere Message Broker Security Vulnerability: Using WS-Security may result in a user gaining elevated privileges (CVE-2011-1377 )

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.