ESB-2017.1912 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Application Server: Access privileged data - Existing account 2017-08-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1912
            Security Bulletin: Weaker than expected security in
               WebSphere Application Server (CVE-2017-1504)
                               2 August 2017

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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:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1504  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22006803

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Security Bulletin: Weaker than expected security in WebSphere Application
Server (CVE-2017-1504)

Document information

More support for: WebSphere Application Server
Security

Software version: 9.0

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition: Advanced, Base, Developer, Enterprise, Express, Network
Deployment

Reference #: 2006803

Modified date: 01 August 2017

Security Bulletin

Summary

WebSphere Application Server traditional 9.0.0.4 added a new feature
using the PasswordUtil command to enable AES password encryption. If you
used this feature, then you have a potential for weaker than expected
security since some passwords did not get encrypted as you might have
expected. If you didn't use this new feature, then you are not affected
by this vulnerability. This does not affect passwords with the default
XOR encoding, or passwords with custom encryption.

Vulnerability Details

CVEID: CVE-2017-1504
DESCRIPTION: IBM WebSphere Application Server Version 9.0.0.4 could provide
weaker than expected security after using the PasswordUtil command to
enable AES password encryption.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/129579 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM
WebSphere Application Server:

    Version 9.0.0.4 - if you used the PasswordUtil command to enable AES
    password encryption.

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF
containing APAR PI82602 for each named product as soon as practical. This
does not affect passwords with the default XOR encoding, or passwords with
custom encryption.

For WebSphere Application Server traditional and WebSphere Application
Server Hypervisor Edition:
For V9.0.0.4:
? Apply Interim Fix PI82602
- --OR--
? Apply Fix Pack 9.0.0.5 or later (targeted availability 29 September 2017).

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

01 August 2017: 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.

Cross reference information

Segment			Product						Component	Platform	Version		Edition
Application Servers	WebSphere Application Server Hypervisor Edition

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