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AUSCERT External Security Bulletin Redistribution
ESB-2015.2861
Vulnerability in Apache Commons affects IBM WebSphere Application Server
20 November 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-7450
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21970575
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Security Bulletin: Vulnerability in Apache Commons affects IBM WebSphere
Application Server (CVE-2015-7450)
Security Bulletin
Document information
More support for:
WebSphere Application Server
General
Software version:
7.0, 8.0, 8.5, 8.5.5
Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Software edition:
Base, Developer, Express, Liberty, Network Deployment
Reference #:
1970575
Modified date:
2015-11-18
Summary
An Apache Commons Collections vulnerability for handling Java object
deserialization was addressed by WebSphere Application Server and WebSphere
Application Server Hypervisor Edition. This vulnerability does not affect the
IBM HTTP Server or versions of WebSphere Application Server prior to Version
7.0.
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
The following Versions of WebSphere Application Server and IBM WebSphere
Application Server Hypervisor Edition may be affected:
- - Version 8.5 and 8.5.5 Full Profile and Liberty Profile
- - Version 8.0
- - Version 7.0
Prior Versions of WebSphere Application Server are not affected.
Remediation/Fixes
For IBM WebSphere Application Server Liberty Profile
For V8.5.0.0 through 8.5.5.7 Liberty Profile:
The IBM WebSphere Application Server Liberty profile only enables the Apache
Commons Collections if you are using ONE of the following three features:
- - jsf-2.0
- - jsf-2.2
- - jpa-2.0
You may be vulneraable if you are using any one of these features. To
determine if you are vulnerable you can look in the console.log for this
message:
[AUDIT ] CWWKF0012I: The server installed the following features: [xxxxx]
If in place of the xxxxx it does not contain any one of those three features
listed then you are not vulnerable.
If you are vulnerable then upgrade to minimal fix pack levels as required by
interim fix and then apply Interim Fix PI52103
- -- OR
Apply Fix Pack 8 (8.5.5.8), or later (targeted availability 11 December
2015).
For IBM WebSphere Application Server and IBM WebSphere Application Server
Hypervisor Edition:
For V8.5.0.0 through 8.5.5.7:
Apply Interim Fix PI52103
- -- OR
Apply Fix Pack 8 (8.5.5.8), or later (targeted availability 11 December 2015).
For V8.0.0.0 through 8.0.0.11:
Apply Interim Fix PI52103
- -- OR
Apply Fix Pack 12 (8.0.0.12), or later (targeted availability 1 February
2016).
For V7.0.0.0 through 7.0.0.39:
Apply Interim Fix PI52103
- -- OR
Apply Fix Pack 41 (7.0.0.41), or later (targeted availability 11 April 2016).
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.
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Important note
IBM strongly suggests that all System z customers be subscribed to the System
z Security Portal to receive the latest critical System z security and
integrity service. If you are not subscribed, see the instructions on the
">System z Security web site. Security and integrity APARs and associated
fixes will be posted to this portal. IBM suggests reviewing the CVSS scores
and applying all security or integrity fixes as soon as possible to minimize
any potential risk.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
13 November 2015: original document published
17 November 2015: updated cve number and added fixes for Liberty Profile
18 November 2015: clarified if Liberty is vulnerable or not
*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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