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AUSCERT External Security Bulletin Redistribution
ESB-2014.0471
Security Bulletin: Missing authorization concept for IBM Business Process
Manager (BPM) User Attributes CVE-2014-0908
9 April 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Business Process Manager Advanced
Publisher: IBM
Operating System: AIX
Linux variants
Solaris
Windows
z/OS
Impact/Access: Modify Permissions -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2014-0908
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21669330
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Security Bulletin: Missing authorization concept for IBM Business Process
Manager (BPM) User Attributes CVE-2014-0908
Document information
More support for:
IBM Business Process Manager Advanced
Security
Software version:
7.5, 7.5.0.1, 7.5.1, 7.5.1.1, 7.5.1.2, 8.0, 8.0.1, 8.0.1.1, 8.0.1.2, 8.5,
8.5.0.1
Operating system(s):
AIX, Linux, Linux zSeries, Solaris, Windows, z/OS
Reference #:
1669330
Modified date:
2014-04-04
Security Bulletin
Summary
The User Attribute feature in IBM Business Process Manager does not have an
authorization concept.
Vulnerability Details
As a consequence, each user can read and update their own attribute values
and the attribute values for another user by using REST APIs. However, there
are security-sensitive use cases for user attribute values, such as email
notifications or task assignments that use expressions. You might also choose
to store confidential information about users in user attribute values. The
lack of authorization for this feature can create a security exposure.
CVEID: CVE-2014-0908
CVSS Base Score: 4.9
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91870 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:N)
Affected Products and Versions
- - IBM Business Process Manager Standard V7.5.x, 8.0.x, 8.5.x
- - IBM Business Process Manager Express V7.5.x, 8.0.x, 8.5.x
- - IBM Business Process Manager Advanced V7.5.x, 8.0.x, 8.5.x
Remediation/Fixes
Install IBM Business Process Manager interim fix JR49505 as appropriate for
your current IBM Business Process Manager product version. Interim fixes are
available for the following products:
- - IBM Business Process Manager Standard
- - IBM Business Process Manager Express
- - IBM Business Process Manager Advanced
Workarounds and Mitigations
The following workarounds are available depending on your usage of the IBM
Business Process Manager product and its REST APIs:
- - Do not use user attribute values for security-sensitive use cases.
- - Block write access to the REST APIs User resource (PUT and POST HTTP methods)
in a firewall.
- - Do not expose the User resource REST API on your web server.
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 Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
*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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