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Security Bulletin: WebSphere Application Server Liberty API Discovery feature has potential vulnerability (CVE-2016-2945)

Security Bulletin


Summary

There is a potential for weaker than expected security when using the WebSphere Application Server Liberty profile API Discovery feature and Swagger documents.

Vulnerability Details

CVEID: CVE-2016-2945

DESCRIPTION:
IBM WebSphere Application Server Liberty Profile using the API Discovery feature could provide weaker than expected security when using Swagger documents with external references, which could allow an authenticated attacker to gain the privileges of the user.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113591 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM WebSphere Application Server Liberty for any user of the API Discovery feature with Swagger documents that have external references.

  • Version 8.5.5 Liberty Profile

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing APAR PI62450 for each named product as soon as practical.


For V8.5.5.8 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 PI62450
--OR--
· Apply Fix Pack 16.0.0.2 or later.

Workarounds and Mitigations

none

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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

Off

Change History

21 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.

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU004","label":"Hybrid Cloud"},"Component":"Liberty","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"8.5.5","Edition":"Liberty"}]

Document Information

Modified date:
15 June 2018

UID

swg21984502