Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM SPSS Statistics (CVE-2015-4872, CVE-2015-4734, CVE-2015-5006, CVE-2015-7575)

Summary

There are multiple vulnerabilities in IBM® Runtime Environment Java™ Technology Edition, Versions 1.6 and 1.7 that is used by IBM SPSS Statistics. These issues were disclosed as part of the IBM Java SDK updates in October 2015 and includes the vulnerability commonly referred to as “SLOTH”.

Vulnerability Details

CVEID: CVE-2015-4872**
DESCRIPTION:** An unspecified vulnerability in Oracle Java SE and JRockit 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)

CVEID: CVE-2015-4734**
DESCRIPTION:** An unspecified vulnerability in Oracle Java SE related to the JGSS component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107356 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVEID: CVE-2015-5006**
DESCRIPTION:** IBM Java Security Components could allow an attacker with physical access to the system to obtain sensitive information from the Kerberos Credential Cache.
CVSS Base Score: 4.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/106309 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: 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: See 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/UI:U/C:H/I:L/A:N)

Affected Products and Versions

IBM SPSS Statistics 19.0.0.2
IBM SPSS Statistics 20.0.0.2
IBM SPSS Statistics 21.0.0.2
IBM SPSS Statistics 22.0.0.2
IBM SPSS Statistics 23.0.0.2

Remediation/Fixes

Product

| VRMF| APAR| Remediation/First Fix
—|—|—|—
IBM SPSS Statistics| 19.0.0.2| PI57674| Install Statistics 19 FP002-IF005
IBM SPSS Statistics| 20.0.0.2| PI57674| Install Statistics 20 FP002 IF007
IBM SPSS Statistics| 21.0.0.2| PI57674| Install Statistics 21 FP002 IF009
IBM SPSS Statistics| 22.0.0.2| PI57674| Install Statistics 22 FP002 IF009
IBM SPSS Statistics| 23.0.0.2| PI57674| Install Statistics 23 FP002 IF009

Workarounds and Mitigations

For CVE-2015-7575:

Users of Java 7 (SPSS Statistics 23) 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 (SPSS Statistics 19 thru 22) requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JDK is the only solution.