Security Bulletin: A security vulnerability has been identified in Apache Commons and IBM WebSphere Application Server Liberty Profile shipped with IBM Support Assistant Team Server (CVE-2015-7450)

Summary

IBM WebSphere Application Server Liberty Profile and Apache Commons are shipped as components of IBM Support Assistant Team Server. The recommended solution is to install the fix made available by IBM WebSphere Application Server and remove the Apache Commons Collections Library bundled with IBM Support Assistant Team Server.

Vulnerability Details

CVEID: CVE-2015-7450 DESCRIPTION: Apache Commons Collections could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of data with Java InvokerTransformer class. By sending specially crafted data, an attacker could exploit this vulnerability to execute arbitrary Java code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107918 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Support Assistant Team Server version 5.0.0, 5.0.1, 5.0.1.1, 5.0.2 and 5.0.2.1

Remediation/Fixes

The recommended solution is to install the fix made available by IBM WebSphere Application Server and remove the Apache Commons Collections Library bundled with IBM Support Assistant Team Server.
**
For V5.0.0 through 5.0.2.1:**

• If you are not at the latest version of IBM Support Assistant (V5.0.2.1), you need to upgrade** **http://www-01.ibm.com/software/support/isa/teamserver.html
• Remove the Apache Commons Collections v3.2.1 library under <isa_install>/ISA5/wlp/usr/servers/isa/apps/ISA5.ear/lib
• Apply the IBM WebSphere Application Server Liberty Profile Interim Fix
  • Download the archive fix 8556-wlp-archive-IFPI52103.jar that applies to the Liberty profile, fixpack 8.5.5.6.
  • Save the 8556-wlp-archive-IFPI52103.jar file to the <isa_install>/ISA5/ directory
  • Open the console and run the command “java -jar 8556-wlp-archive-IFPI52103.jar”
  • Press enter to accept the default directory value <isa_install>/ISA5/wlp
  • Stop ISA
  • Once you start ISA you should see the following message on the <isa_install>/ISA5/wlp/usr/servers/isa/logs/console.log
    • [AUDIT ] CWWKF0015I: The server has the following interim fixes installed: PI52103.

Refer to Security Bulletin: Vulnerability in Apache Commons affects IBM WebSphere Application Server (CVE-2015-7450) for vulnerability details and additional information about fixes.

IBM recommends that you review your entire environment to identify vulnerable releases of the open-source Apache Commons Collections and take appropriate mitigation and remediation actions.