Security Bulletin
Summary
A vulnerability has been addressed in the GSKit component of IBM Rational ClearQuest.
Vulnerability Details
CVEID: CVE-2016-0201
DESCRIPTION: IBM GSKit could allow a remote attacker to obtain sensitive information, caused by an MD5 collision. An attacker could exploit this vulnerability to obtain authentication credentials.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109310 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
ClearQuest Web Server: Versions 8.0 through 8.0.1.10 if using IBM HTTP Server version 8 or newer. The GSKit is for secure connections (https).
ClearQuest Clients and Web Server:
Rational ClearQuest versions from 8.0 through 8.0.1.10 if ClearQuest is configured to use LDAP authentication with SSL connections.
Remediation/Fixes
ClearQuest Web Server:
Apply an IHS fix for the issue:
- Determine the IHS version used by your ClearQuest Web server. Navigate to the IBM HTTP Server installation directory (typically /opt/ibm/HTTPServer or C:\Program Files (x86)\IBM\HTTPServer), then execute the script: bin/versionInfo.sh (UNIX) or bin\versionInfo.bat (Windows). The output includes a section "IBM HTTP Server for WebSphere Application Server". Make note of the version listed in this section.
- Review the following IHS security bulletin for the available fixes: Security Bulletin:Vulnerabilities in the GSKit component of IBM HTTP Server (CVE-2016-0201 and CVE-2015-7420)
- Apply the relevant fixes to your IBM HTTP Server installation used on your ClearQuest Web server host. No ClearQuest-specific steps are necessary.
- For this ClearQuest Web server, also follow steps ClearQuest Clients if you also use LDAP authentication with SSL connections.
ClearQuest Clients and Web Server:
The solution is to install a newer, fixed version of the GSKit runtime component.
Affected Versions | Applying the fix |
8.0.1 through 8.0.1.10 | Install Rational ClearQuest Fix Pack 11 (8.0.1.11) for 8.0.1 |
8.0 through 8.0.0.17 | Install Rational ClearQuest Fix Pack 18 (8.0.0.18) for 8.0 |
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
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
Change History
* 28 January 2016: Original version published
* 27 May 2016: Revised for new fix packs
*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 Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Internal Use Only
The fixes are on the test fix portal:
8.0.0.17_gskit
8.0.1.10_gskit
The fixes are LA iFixes that apply on top of the 2015D fix packs
(8.0.0.17, 8.0.1.10). Customers should upgrade to those
releases before applying these fixes.
For each platform, for each affected release, there is a zip file on the
Rational fix portal with the fixes, and a matching README file with
manual installation instructions. The customer should download the
fixes and READMEs for their platform(s)/release(s).
The plan is to incorporate all these fixes in 2016A fix packs, but we
are publishing them early to meet the IBM security team's guidelines.
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Document Information
Modified date:
29 September 2018
UID
swg21975420