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Security Bulletin: Information disclosure in WebSphere Application Server Liberty (CVE-2018-1755)

Security Bulletin


Summary

There is a potential information disclosure vulnerability in WebSphere Application Server Liberty.

Vulnerability Details

CVEID: CVE-2018-1755
DESCRIPTION: WebSphere Application Server Liberty could allow a remote attacker to obtain sensitive information, caused by incorrect transport being used when Liberty is configured to use Java Authentication SPI for Containers (JASPIC). This can happen when the Application Server is configured to permit access on non-secure (http) port and using JASPIC or JSR375 authentication.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148597 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/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:

  • Liberty

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing APARs PH01295 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 PH01295
--OR--
· Apply Liberty Fix Pack 18.0.0.3 or later.

Get Notified about Future Security Bulletins

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

22 August 2018: 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.

Document information

More support for: WebSphere Application Server

Component: Liberty

Software version: All Versions

Operating system(s): Platform Independent

Software edition: Liberty

Reference #: 0728689

Modified date: 19 February 2019