Security Bulletin: Multiple vulnerabilities in Rational Collaborative Lifecycle Management v4.0.1 (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887)

VULNERABILITY DETAILS

CVEID: CVE-2012-5885

Description
Replay-countermeasure functionality in HTTP Digest Access Authentication has a flaw, which makes it easier for attackers to bypass access restrictions.

CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80408 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVEID: CVE-2012-5886

Description
HTTP Digest Access Authentication implementation could potentially allow an attacker to bypass authentication.

CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80407 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVEID: CVE-2012-5887

Description
HTTP Digest Access Authentication implementation has a flaw which allows an
attacker to bypass restrictions.

CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/79809 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)


AFFECTED PRODUCTS AND VERSIONS:
CLM 4.0.1 and earlier
RTC 4.0.1 and earlier
RQM 4.0.1 and earlier
RRC 4.0.1 and earlier

REMEDIATION:
Apply the fix for each named product as soon as practical. Please see below for information on the fixes available.

Fix:
Downloads are available from https://jazz.net/downloads/rational-team-concert/

Workaround:
None known; apply fixes

Mitigation(s):
Isolate systems from untrusted network traffic by means of firewalls.

IMPORTANT NOTE:
IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

REFERENCES:

• Complete CVSS Guide
• On-line Calculator V2
• CVE-2012-5885
• CVE-2012-5886
• CVE-2012-5887
• X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/80408
• X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/80407
• X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/79809

RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog


CHANGE HISTORY
21 March 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 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.