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Security Bulletin: Vulnerability in RC4 stream cipher affects Tivoli Netcool/OMNIbus (CVE-2015-2808)

Security Bulletin


The RC4 “Bar Mitzvah” Attack for SSL/TLS affects Tivoli Netcool/OMNIbus

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 obtain sensitive information. This vulnerability is commonly referred to as "Bar Mitzvah Attack".
CVSS Base Score: 5
CVSS Temporal Score: See 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

Tivoli Netcool/OMNIbus 7.3.0
Tivoli Netcool/OMNIbus 7.3.1
Tivoli Netcool/OMNIbus 7.4.0
Tivoli Netcool/OMNIbus 8.1.0



VRMFAPARRemediation/First Fix
OMNIbus, IV73123, IV74026
OMNIbus7.3.1.13IV73107, IV73123, IV74026
OMNIbus7.4.0.7IV73107, IV73123, IV74026
OMNIbus, IV73123, IV74026

Workarounds and Mitigations

Configure the OMNIbus server components to use FIPS mode as that will disable RC4 by default. FIPS mode configuration is described here:

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Change History

31 July 2015 - Original version 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.


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.

[{"Product":{"code":"SSSHTQ","label":"Tivoli Netcool\/OMNIbus"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"--","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"7.4.0;7.3.1;7.3.0;8.1.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
17 June 2018