Security Bulletin: Vulnerability in Diffie-Hellman ciphers affects FileNet Content Manager, IBM Content Foundation and FileNet BPM (CVE-2015-4000)

Summary

The Logjam Attack on TLS connections using the Diffie-Hellman (DH) key exchange protocol affects FileNet Content Manager, IBM Content Foundation and FileNet Business Process Manager.

Vulnerability Details

CVEID: CVE-2015-4000**
DESCRIPTION:** The TLS protocol could allow a remote attacker to obtain sensitive information, caused by the failure to properly convey a DHE_EXPORT ciphersuite choice. An attacker could exploit this vulnerability using man-in-the-middle techniques to force a downgrade to 512-bit export-grade cipher. Successful exploitation could allow an attacker to recover the session key as well as modify the contents of the traffic. This vulnerability is commonly referred to as “Logjam”.

CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/103294 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

FileNet Content Manager 5.1.0, 5.2.0, 5.2.1
IBM Content Foundation 5.2.0, 5.2.1
FileNet Business Process Manager 4.5.1, 5.0.0, 5.2.0

Remediation/Fixes

Install IBM Java Runtime Environment (JRE) v1.6 SR16 FP5 or higher which is provided in the following releases in the table below.

Releases available from Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

IBM recommends that you review your entire environment to identify other areas where you have enabled the Diffie-Hellman key-exchange protocol used in TLS and take appropriate mitigation and remediation actions.

Workarounds and Mitigations

None