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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3193
        Security Bulletin: Security Vulnerabilities in IBM(R) Java
             SDK affect Rational Method Composer July 2018 CPU
                              19 October 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Rational Method Composer (RMC)
Publisher:         IBM
Operating System:  Linux variants
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account            
                   Increased Privileges            -- Existing Account            
                   Modify Arbitrary Files          -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-12539 CVE-2018-1656 

Reference:         ESB-2018.3160
                   ESB-2018.3074
                   ESB-2018.3018
                   ESB-2018.2977
                   ESB-2018.2931
                   ESB-2018.2798
                   ESB-2018.2555

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10735541

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Security Bulletin: Security Vulnerabilities in IBM(R) Java SDK affect Rational
Method Composer July 2018 CPU

Document information

More support for: Rational Method Composer

Software version: 7.5.2.4, 7.5.3

Operating system(s): Linux, Windows

Reference #: 0735541

Modified date: 18 October 2018

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 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 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

Change History

18 October 2018: Initial publication

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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