IBM WebSphere Message Broker Connectivity Pack for Healthcare Security Vulnerability: potential for product files to be owned by a non-trusted user (CVE-2012-3317)

VULNERABILITY DETAILS

CVE ID: CVE-2012-3317

DESCRIPTION:
When the IBM WebSphere Message Broker Connectivity Pack for Healthcare uninstaller IBM Java Runtime Environment (JRE) files are created, they are not owned by the same user and group as the other product files. This ownership may not resolve to a trusted user on every system, and gives that user the ability to change program files which will later be run by the root user. The JRE files should be owned by the same user as other installed IBM WebSphere Message Broker Connectivity Pack for Healthcare files.

CVSS:
CVSS base score: 6.9
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/77818 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

*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 Connectivity Pack for Healthcare V7 is affected on all UNIX platforms

REMEDIATION:
The recommended solution is to apply the Fix Pack mentioned below as soon as it is available. Prior to availability it is recommended that you follow the workaround instructions below.

FIX
IBM WebSphere Message Broker Connectivity Pack for Healthcare V7.0.0.3 reference APAR IC88506 - see IBM WebSphere Message Broker Connectivity Pack for Healthcare planned maintenance release dates for target availability: http://www-01.ibm.com/support/docview.wss?uid=swg27006308

WORKAROUND:
Logon to the system as root, change the userid and group for the uninstaller JRE files to the same user and group as the rest of the IBM WebSphere Message Broker product files.

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/77818)
CVE-2012-3317 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3317)

CHANGE HISTORY:
<04/12/12>: 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.