Security Bulletin: Security Vulnerabilities in IBM® Java SDK affect Rational Method Composer July 2018 CPU

Summary

There are multiple vulnerabilities in IBM Java Development kit, Version 7 which is used by IBM Rational Method Composer (RMC). These issues were disclosed as part of the IBM Java SDK updates in July 2018.

Vulnerability Details

CVEID: CVE-2018-1656 DESCRIPTION: The IBM Java Runtime Environment’'s Diagnostic Tooling Framework for Java (DTFJ) does not protect against path traversal attacks when extracting compressed dump files.
CVSS Base Score: 7.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144882&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID: CVE-2018-12539 DESCRIPTION: Eclipse OpenJ9 could allow a local attacker to gain elevated privileges on the system, caused by the failure to restrict the use of Java Attach API to connect to an Eclipse OpenJ9 or IBM JVM on the same machine and use Attach API operations to only the process owner. An attacker could exploit this vulnerability to execute untrusted native code and gain elevated privileges on the system.
CVSS Base Score: 8.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/148389&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Rational Method Composer 7.5.3
Rational Method Composer 7.5.2.4

Remediation/Fixes

For Rational Method Composer 7.5.3 , upgrade the IBM Java development kit used with Rational Method Composer to version 7.1.4.30, which can be downloaded from:
Rational-RMC-7.5.3.0-JavaSE-JDK-7.1SR4FP30

For Rational Method Composer 7.5.2.4 , upgrade the IBM Java development kit used with Rational Method Composer to version 7.0.10.30, which can be downloaded from:
Rational-RMC-7.5.2.4-JavaSE-JDK-7.0SR10FP30

Workarounds and Mitigations

None