Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect Rational DOORS Web Access (CVE-2016-0475, CVE-2016-0466, CVE-2016-0448, CVE-2015-4872, CVE-2015-7575)

Summary

There are multiple vulnerabilities in IBM® Runtime Environment Java™ Technology Edition, Version 6 and Version 7, which are used by IBM Rational DOORS Web Access. These issues were disclosed as part of the IBM Java SDK updates in October 2015 and January 2016 and includes the vulnerability commonly referred to as “SLOTH”.

Vulnerability Details

Rational DOORS Web Access is affected by the following vulnerabilities:

**
CVEID**: CVE-2016-0475**
DESCRIPTION**: An unspecified vulnerability related to the Libraries component has partial confidentiality impact, partial integrity impact, and no availability impact.**
CVSS Base Score**: 5.8**
CVSS Temporal Score (X-Force Link)**: https://exchange.xforce.ibmcloud.com/vulnerabilities/109946 for the current score

CVSS Environmental Score*: Undefined**
CVSS Vector**: (AV:N/AC:M/Au:N/C:P/I:P/A:N) **
CVEID**: CVE-2016-0466**
DESCRIPTION**: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service.**
CVSS Base Score**: 5**
CVSS Temporal Score (X-Force Link): https://exchange.xforce.ibmcloud.com/vulnerabilities/109948 for the current score CVSS Environmental Score: Undefined*
CVSS Vector**: (AV:N/AC:L/Au:N/C:N/I:N/A:P) **
CVEID**: CVE-2016-0448**
DESCRIPTION**: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information.**
CVSS Base Score**: 4**
CVSS Temporal Score (X-Force Link): https://exchange.xforce.ibmcloud.com/vulnerabilities/109949 for the current score CVSS Environmental Score: Undefined*
CVSS Vector**: (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVEID: CVE-2015-4872**
DESCRIPTION:**An unspecified vulnerability related to the Security component has no confidentiality impact, partial integrity impact, and no availability impact. **CVSS Base Score:**5 **CVSS Temporal Score:*See https://exchange.xforce.ibmcloud.com/vulnerabilities/107361 for the current score CVSS Environmental Score: Undefined CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVE-ID: CVE-2015-7575**
Description**: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials.This vulnerability is commonly referred to as “SLOTH”.
CVSS Base Score: 7.1**
CVSS Temporal Score (X-Force Link): https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the current score CVSS Environmental Score: Undefined*
CVSS Vector**: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N )

Affected Products and Versions

Rational DOORS Web Access versions 1.4, 1.4.0.1, 1.4.0.2, 1.4.0.3, 1.4.0.4, 1.4.0.5, 1.5, 1.5.0.1, 9.5, 9.5.0.1, 9.5.1, 9.5.1.1, 9.5.2, 9.5.2.1, 9.6, 9.6.0.1, 9.6.1, 9.6.1.1, 9.6.1.3, 9.6.1.4

Remediation/Fixes

For Rational DOORS Web Access installations, upgrade the JRE as noted in the table below. You can upgrade the JRE after Rational DOORS Web Access is installed.

To obtain the updated version of the IBM JRE, contact IBM Support. Support can help identify the latest JRE that is compatible with your operating system and platform. Publicly available versions of the Oracle JRE are not supported with Rational DOORS Web Access.

The following table presents Rational DOORS Web Access versions and the compatible versions of IBM JRE.

To install the updated JRE in Rational DOORS Web Access, see this help topic:
Upgrading the JRE for Rational DOORS Web Access

For CVE-2015-7575:

Users of Java 7 and later can address the issue by updating the /jre/lib/security/java.security file as follows (both steps are required):

· Add MD5 to the jdk.certpath.disabledAlgorithms property - e.g. jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024, MD5

· Add MD5withRSA to the jdk.tls.disabledAlgorithms property - e.g. jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768, MD5withRSA

Java 6 requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JDK is the only solution.