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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0060
           Vulnerability in IBM WebSphere eXtreme Scale Liberty
               Deployment could expose sensitive information
                              6 January 2021

===========================================================================

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

Product:           IBM WebSphere Extreme Scale
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-4336  

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6397682

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Vulnerability in IBM WebSphere eXtreme Scale Liberty
Deployment could expose sensitive information.

Summary

Vulnerability in IBM WebSphere eXtreme Scale Liberty Deployment could expose
sensitive information.

Vulnerability Details

CVEID:   CVE-2020-4336
DESCRIPTION:   IBM WebSphere Extreme Scale stores sensitive information in URL
parameters. This may lead to information disclosure if unauthorized parties
have access to the URLs via server logs, referrer header or browser history.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
177932 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

+-----------------------+----------+
|Affected Product(s)    |Version(s)|
+-----------------------+----------+
|WebSphere Extreme Scale|8.6.1     |
+-----------------------+----------+


Remediation/Fixes

For new installation, this vulnerability is fixed in 8.6.1.4 

+------------------+---------+---------+--------------------------------------+
|     Product      |  VRMF   |   Fix   |        Remediation/First Fix         |
+------------------+---------+---------+--------------------------------------+
| WebSphere        | 8.6.1.4 | Fix     | Recommended Fixes page for WebSphere |
| eXtreme Scale    |         | Pack 4  | eXtreme Scale.                       |
+------------------+---------+---------+--------------------------------------+

For existing installation / upgrade please follow the steps in Workaround and
mitigations section.

Workarounds and Mitigations

Add the following entry in RestAdmin server.xml located at <XSLD_HOME>\wlp\usr\
servers\restAdminServer

and RestData server.xml located at <XSLD_HOME>\wlp\usr\servers\restDataServer 

<!-- Set the WASReqURL cookie to be secure -->
<webAppSecurity ssoRequiresSSL="true"/>
<httpSession cookieSecure="true"/>

Change History

05 Jan 2021: Initial Publication

Document Information

Operating system(s):
AIX, HP-UX, Linux, Solaris, Windows

Document number:
6397682

Modified date:
05 January 2021

UID

ibm16397682

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