Security Bulletin
Summary
The IBM GSKit component used in Rational ClearCase is susceptible to a Transport Layer Security protocol (used in HTTPS) vulnerability known as "Lucky Thirteen." The vulnerability might allow remote attackers to conduct distinguishing and plain-text recovery attacks by statistically analyzing timing data for crafted packets.
Vulnerability Details
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CVE ID: CVE-2013-0169
Description: The IBM GSKit component used in Rational ClearCase is susceptible to a Transport Layer Security protocol (used in HTTPS) vulnerability known as "Lucky Thirteen." The vulnerability might allow remote attackers to conduct distinguishing and plain-text recovery attacks by statistically analyzing timing data for crafted packets.
The IBM GSKit is used if ClearCase on Windows platforms is configured to integrate with IBM Rational ClearQuest with communication over SSL (https). This applies to Base CC/CQ integrations using Change Management Interface (CMI) and to UCM-enabled CQ integration via OSLC. If your ClearCase deployment is not using these integrations with ClearQuest, or not using SSL with the integrations, then your deployment is not sensitive to this attack. The UCM-enabled CQ integration without using OSLC (SQUID) is not sensitive to this attack.
If your deployment does not use ClearCase on Windows, it is not sensitive to this attack.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/81902 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
Rational ClearCase 7.1 through 7.1.2.11, 8.0 through 8.0.0.7, and 8.0.1
Remediation/Fixes
Upgrade to one of the below versions of IBM Rational ClearCase
- Rational ClearCase Fix Pack 1 (8.0.1.1) for 8.0.1
- Rational ClearCase Fix Pack 8 (8.0.0.8) for 8.0
- 7.1.2.12: Upgrade to 8.0.0.8 or 8.0.1.1
Workarounds and Mitigations
None
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References
Acknowledgement
None
Change History
* 16 Sept 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 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.
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Document Information
Modified date:
10 July 2018
UID
swg21648839