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AUSCERT External Security Bulletin Redistribution
ESB-2016.1636
Security Bulletin: Information disclosure in WebSphere
Application Server Liberty (CVE-2016-2923)
30 June 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server Liberty
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
z/OS
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-2923
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21983700
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Security Bulletin: Information disclosure in WebSphere Application Server
Liberty (CVE-2016-2923)
Security Bulletin
Document information
More support for:
WebSphere Application Server
Liberty
Software version:
8.5, 8.5.5
Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Software edition:
Liberty
Reference #:
1983700
Modified date:
2016-06-29
Summary
There is an information disclosure vulnerability in IBM WebSphere Application
Server Liberty for any users of the JAX-RS API.
Vulnerability Details
CVEID:
CVE-2016-2923
DESCRIPTION:
IBM WebSphere Application Server Liberty using JAX-RS API could allow a
remote attacker to obtain sensitive information, caused by the failure to set
the HTTPOnly flag. A remote attacker could exploit this vulnerability to
obtain sensitive information from the cookie.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113354
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM
WebSphere Application Server Liberty for any user of the JAX-RS API
Version 8.5.5 Liberty
Version 8.5 Liberty
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing APAR PI61936 for each named product as soon as practical.
For V8.5.0.0 through 8.5.5.9 WebSphere Application Server Liberty:
Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix
PI61936
- --OR--
Apply Fix Pack 16.0.0.2 or later (targeted to be available 24 June 2016).
Workarounds and Mitigations
none
Get Notified about Future Security Bulletins
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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
29 June 2016: original document 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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