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AUSCERT External Security Bulletin Redistribution
Security Bulletin: Vulnerability in RC4 stream cipher
affects IBM DataQuant for Workstation (CVE-2015-2808)
18 May 2015
AusCERT Security Bulletin Summary
Product: IBM DataQuant for Workstation
Operating System: Linux variants
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2015-2808
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Security Bulletin: Vulnerability in RC4 stream cipher affects IBM DataQuant
for Workstation (CVE-2015-2808)
More support for:
DB2 Tools for z/OS
The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM DataQuant for Workstation.
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
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Affected Products and Versions
DataQuant for z/OS Version 2 Release 1, Fix Pack 3 (and earlier)
DataQuant for Multiplatforms Version 2 Release 1, Fix Pack 3 (and earlier)
DataQuant for z/OS Version 2 Release 1 and DataQuant for Multiplatforms
Version 2 Release 1: install DataQuant for Workstation 2.1 in Fix Pack 4
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 IBM DataQuant for z/OS V1.2 and IBM DataQuant for Multiplatforms V1.2, IBM
recommends upgrading to a fixed, supported version/release/platform of the
product, IBM DataQuant for z/OS V2.1 and IBM DataQuant for Multiplatforms V2.1
Workarounds and Mitigations
Important note: IBM strongly suggests that all System z customers subscribe 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
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Complete CVSS Guide
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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.
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.
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