Security Bulletin: A vulnerability in IBM Java Runtime affects IBM Cognos Command Center (CVE-2018-1656)

Security Bulletin

Summary

There is a vulnerability in IBM® Runtime Environment Java™ Technology Edition, Version 8 that is used by IBM Cognos Command Center. This issue was disclosed as part of the IBM Java SDK updates for 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)

Affected Products and Versions

IBM Cognos Command Center 10.2.4 All Editions

Remediation/Fixes

The recommended solution is to apply the IBM JRE 8.0.5.20 to the affected version of IBM Cognos Command Center.

The fix can be found here:

10.24-BA-CCC-Wind32-JRE-8SR5FP20

Installation instructions for applying this fix.

For Microsoft Windows servers where the Agent or the Server component is installed please follow this procedure:

Step 1:
Download the 32 bit IBM Java JRE (file name: ibm-java-jre-80-win-i386.zip, Size: 174.3 MB, Build: pwi3280sr5fp20-20180802_01(SR5 FP20)).

Step 2:
Stop the CccServer, CccQueue and CccAgent Microsoft Windows services.

Step 3:

Rename the <INSTALLDIR>\Common\java.8.0.0 directory to <INSTALLDIR>\Common\java.8.0.0.orig

Step 4:
Unpack the content of the ibm-java-jre-80-win-i386.zip file to <INSTALLDIR>\Common\java.8.0.0

Step 5:
Start the CccAgent, CccQueue and CccServer Microsoft Windows services.

Step 6:
Validate the installation by testing the connectivity to the agent using the CCC Client.

Upgrade instructions after applying this fix.

For all IBM Cognos Command Center installations with the above fix applied:

Before upgrading your installation to a newer version please revert to the original \java\ directory by following this procedure.

Step A:
Stop the CccServer, CccQueue and CccAgent Windows services.

Step B:
Rename the <INSTALLDIR>\Common\java directory to <INSTALLDIR>\Common\java.cve

Step c:
Rename the <INSTALLDIR>\Common\java.orig directory to <INSTALLDIR>\Common\java

Step D:
Proceed to upgrade your Cognos Command Center installation to a newer version.

Step E:
After the upgrade to the newer version is done, please reapply this fix starting from Step 1.

You should verify applying this fix does not cause any compatibility issues.

Workarounds and Mitigations

None.

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

IBM Java SDK Security Bulletin (July 2018)

Change History

31 October 2018: Original Version Published.

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

PSIRT Advisory: 12959

PSIRT Product Record: 120125

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Security Bulletin: A vulnerability in IBM Java Runtime affects IBM Cognos Command Center (CVE-2018-1656)