Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Intelligent Operations Center (CVE-2015-2808)

Summary

The RC4 “Bar Mitzvah” Attack for SSL/TLS affects IBM Intelligent Operations Center.

Vulnerability Details

CVE ID: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: 5.00
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/101851&gt; 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

Affected Product and Version(s)

| Product shipped as a component
—|—
IBM Intelligent Operations Center version 1.6.0.3| IBM HTTP Server

Remediation/Fixes

Interim fix PO04697 fixes this issue. Either apply the interim fix, or follow the manual instructions that are provided in the “Workarounds and Mitigations” section.

Workarounds and Mitigations

1. For a standard topology, on the web server, edit the following file:
/opt/IBM/HTTPServer/conf/httpd.conf

For a high availability topology, modify the file on both of the web servers.

2. Modify the following lines:

SSLCipherSpec ALL SSL_RSA_WITH_RC4_128_MD5 SSLCipherSpec ALL SSL_RSA_WITH_RC4_128_SHA
to:

##SSLCipherSpec ALL SSL_RSA_WITH_RC4_128_MD5 ##SSLCipherSpec ALL SSL_RSA_WITH_RC4_128_SHA
3. In a standard environment, restart the web server. For more information, see “Starting the components in a standard environment” in the IBM Intelligent Operation Center product documentation.
In a high availability environment, restart both web servers. For more information, see “Starting the components in a high availability environment” in the IBM Intelligent Operation Center product documentation.