Security Bulletin: Man In The Middle Attack Vulnerability Affecting Rational Developer for AIX and Linux, Rational Developer for i, and Rational Developer for Power Systems Software (CVE-2014-0411)

Summary

The version of the Java Runtime Environment shipped with certain versions of Rational Developer for AIX and Linux, Rational Developer for i, and Rational Developer for Power Systems Software has security vulnerabilities which affect these products.

Vulnerability Details

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CVEID: CVE-2014-0411**

Description:** Rational Developer for AIX and Linux, Rational Developer for i, and Rational Developer for Power Systems Software all ship the IBM Java Runtime Environment, certain versions of which are vulnerable to a Man In The Middle attack. When connecting to a remote system via Java’s JSSE/TLS mechanism (e.g. via SSH or SSL) timing differences based on the validity of messages can be exploited to decrypt the entire session. The exploit is not trivial, requiring a man-in-the-middle position and a long time (around 20 hours). Hence any communications from the IDE client to the IDE server are potentially vulnerable, as are any number of other services within the IDE which make use of JSSE/TLS.

CVSS Base Score: 4 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/90357&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:H/Au:N/C:P/I:P/A:N)

Affected Products and Versions

Product Name

| Versions Affected
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Rational Developer for Power Systems Software| 7.6, 7.6.0.1, 7.6.0.2, 8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.3, 8.0.3.1, 8.5, 8.5.1
Rational Developer for AIX and Linux, C/C++ Edition| 9.0, 9.0.0.1
Rational Developer for AIX and Linux, AIX COBOL Edition| 9.0, 9.0.0.1
Rational Developer for i| 9.0, 9.0.0.1

Remediation/Fixes

There is a fix to the JRE that eliminates the timing differences. This fix has been incorporated into fixes for the affected products which are available at:

Workarounds and Mitigations

None