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Security Bulletin: Potential spoofing attack in WebSphere Application Server (CVE-2017-1788)

Security Bulletin


Summary

There is a potential spoofing attack in WebSphere Application Server using Form Login.

Vulnerability Details


CVEID: CVE-2017-1788
DESCRIPTION: IBM WebSphere Application Server installations using Form Login could allow a remote attacker to conducts spoofing attacks.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/137031 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
  • Version 9.0

Remediation/Fixes


The recommended solution is to apply the interim fix, Fix Pack or PTF containing APARs PI90980 for each named product as soon as practical.

For WebSphere Application Server Liberty:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI90980
--OR--
· Apply Liberty Fix Pack 18.0.0.1 or later.

For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition:

For V9.0.0.0 through 9.0.0.7:
· Upgrade to minimal fix pack levels as required by interim fixes and then apply Interim Fix PI90980
--OR--
· Apply Fix Pack 9.0.0.8 or later.

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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

14 March 2018: original document published
28 March 2018: updated 9008 fixpack level

*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":"General","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":"9.0","Edition":"Advanced;Base;Developer;Enterprise;Express;Liberty;Network Deployment;Single Server"}]

Document Information

Modified date:
19 February 2019

UID

swg22012341