IBM WebSphere Application Server: Access Confidential Data -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2508
          Security Bulletin: Information disclosure in WebSphere
                Application Server Liberty (CVE-2018-1755)
                              23 August 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM WebSphere Application Server
Publisher:         IBM
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1755  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10728689

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

Document information

More support for: WebSphere Application Server

Software version: All Versions

Operating system(s): Platform Independent

Software edition: Liberty

Reference #: 0728689

Modified date: 22 August 2018

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:

  o 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 (targeted availability 3Q2018).

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.

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