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

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:
For V9.0.0.4:

· Apply Interim Fix PI82602
--OR--
· Apply Fix Pack 9.0.0.5 or later.

Get Notified about Future Security Bulletins

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
03 August 2017: added link to IBM support video

*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.

Related information

A Japanese translation is available

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: 30 October 2017