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Security Bulletin: Potential Spoofing vulnerability in WebSphere Application Server (CVE-2018-1902)

Security Bulletin


Summary

There is a potential spoofing vulnerability in IBM WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2018-1902
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to spoof connection information which could be used to launch further attacks against the system.
CVSS Base Score: 3.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152531 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

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

  • Liberty
  • Version 9.0
  • Version 8.5
  • Version 8.0
  • Version 7.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing the APAR 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  PH07036
--OR--
· Apply Fix Pack 19.0.0.3 or later (targeted availability 2Q2019).

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

For V9.0.0.0 through 9.0.0.10:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH07036
--OR--
· Apply Fix Pack 9.0.0.11 or later (targeted availability 2Q2019).

For V8.5.0.0 through 8.5.5.15:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH07036
--OR--
· Apply Fix Pack 8.5.5.16 or later (targeted availability 3Q2019).

For V8.0.0.0 through 8.0.0.15:
· Upgrade to 8.0.0.15 and then apply Interim Fix PH07036
 

For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and  then apply Interim Fix PH07036
 

WebSphere Application Server V7 and V8 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product.


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Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

07 March 2019: 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
Product Component Platform Version Edition
WebSphere Application Server Liberty Core AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS Liberty

Document information

More support for: WebSphere Application Server

Software version: 7.0, 8.0, 8.5, 9.0

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

Software edition: Advanced, Base, Developer, Enterprise, Express, Liberty, Network Deployment, Single Server

Reference #: 0795115

Modified date: 07 March 2019