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Security Bulletin: Vulnerabilities in RC4 stream cipher affects ClearQuest (CVE-2015-2808)

Security Bulletin


Summary

The RC4 “Bar Mitzvah” Attack for SSL/TLS affects IBM Rational ClearQuest.

Vulnerability Details

CVEID: CVE-2015-2808
DESCRIPTION: The RC4 algorithm, as used in the TLS protocol and SSL protocol, could allow a remote attacker to obtain sensitive information. An attacker could exploit this vulnerability to remotely expose account credentials without requiring an active man-in-the-middle session. Successful exploitation could allow an attacker to retrieve credit card data or other sensitive information. This vulnerability is commonly referred to as "Bar Mitzvah Attack".
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/101851 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

IBM Rational ClearQuest, versions 7.1.0.x, 7.1.1.x, 7.1.2.x, 8.0.0.x, 8.0.1.x, in the following components:

  • ClearQuest Eclipse clients that use Report Designer, run remote reports on servers using secure connections, or use the embedded browser to connect to secure web sites.
  • ClearQuest Web Server with SSL enabled

Remediation/Fixes

The fix depends on the component you use that is affected by this vulnerability:


You should verify applying this fix does not cause any compatibility issues. The fix disables RC4 stream cipher by default. If you change this setting, you will expose yourself to the attack described above. IBM recommends that you review your entire environment to identify other areas where you have enabled the RC4 stream cipher and take appropriate mitigation and remediation actions.

For unsupported versions, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*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 for CQ Eclipse client are in a new JRE, which is available on the test fix portal as part of the following TestFixes:

7.1.2.17.001
8.0.0.14.001
8.0.1.07.003

they can be installed using Installation Manager.

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Document Information

Modified date:
17 June 2018

UID

swg21902429

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