Security Bulletin: Rational Change client side deployments affected by vulnerabilities if IBM JRE is installed by end user (CVE-2012-4820, CVE-2012-4821, CVE-2012-4822, CVE-2012-4823)

VULNERABILITY DETAILS:

CVE IDs: CVE-2012-4820, CVE-2012-4821, CVE-2012-4822, CVE-2012-4823

DESCRIPTION:
There are a number of vulnerabilities in the IBM JAVA SDK versions that affect various components (ORB, XML and JMX). Some of the issues need to be combined in sequence to achieve an exploit. This occurs when the affected JRE is installed as the system JRE.

For example, this can occur when a JRE is running Java applets or Web Start applications.

CVEID: CVE-2012-4820
CVSS Base Score: 9.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/78764 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVEID: CVE-2012-4821
CVSS Base Score: 9.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/78765 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVEID: CVE-2012-4822
CVSS Base Score: 9.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/78766 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVEID: CVE-2012-4823
CVSS Base Score: 9.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/78767 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C)

AFFECTED PRODUCTS AND VERSIONS:
Any supported Rational Change client platform

REMEDIATION:
Upgrade IBM JRE to Java 6 SR12 or later on the client machines or switch to the Oracle JRE. You can download IBM Java 6 SR 12 from http://www.ibm.com/developerworks/java/jdk/index.html.
Windows clients will need to use the Oracle JRE.

WORKAROUND(S):
None. Update JRE.

MITIGATION(S):
Do not visit untrusted web sites while the browser has a vulnerable JRE enabled.


REFERENCES:
· Complete CVSS Guide
· On-line Calculator V2
· CVE-2011-4820
· X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/78764
· CVE-2011-4821
· X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/78765
· CVE-2011-4822
· X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/78766
· CVE-2011-4823
· X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/78767


RELATED INFORMATION:
http://seclists.org/bugtraq/2012/Sep/38

ACKNOWLEDGEMENT
The vulnerability was reported to IBM by Adam Gowdiak of Security Explorations.

CHANGE HISTORY
None

*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 References 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.