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AUSCERT External Security Bulletin Redistribution
ESB-2015.2923
A security vulnerability has been identified in Apache Commons and IBM
WebSphere Application Server Liberty Profile shipped with
IBM Support Assistant Team Server
24 November 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Support Assistant Team Server
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-7450
Reference: ESB-2015.2861
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21971537
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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)
Security Bulletin
Document information
More support for:
IBM Support Assistant
Team Server
Software version:
5.0, 5.0.1.0, 5.0.1.1, 5.0.2.0, 5.0.2.1
Operating system(s):
AIX, Linux, Windows
Software edition:
TeamServer
Reference #:
1971537
Modified date:
2015-11-20
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.
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alerts like this.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
20 November, 2015 : 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
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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