ESB-2018.3285 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Application Server : Cross-site scripting - Existing account 2018-10-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3285
 Security Bulletin: Cross-site scripting vulnerability in CacheMonitor for
               WebSphere Application Server (CVE-2018-1767)
                              26 October 2018

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

Product:           IBM WebSphere Application Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
Impact/Access:     Cross-site Scripting -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1767  

Original Bulletin: 
   https://www.ibm.com/support/docview.wss?uid=ibm10729547

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Security Bulletin: Cross-site scripting vulnerability in CacheMonitor for
WebSphere Application Server (CVE-2018-1767)

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 #: 0729547

Modified date: 25 October 2018

Security Bulletin


Summary

There is a potential cross-site scripting vulnerability in the Cache Monitor
web application in WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2018-1767
DESCRIPTION: IBM WebSphere Application Server CacheMonitor is vulnerable to
cross-site scripting. This vulnerability allows users to embed arbitrary
JavaScript code in the Web UI thus altering the intended functionality
potentially leading to credentials disclosure within a trusted session.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
148621 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

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

  o Liberty
  o Version 9.0
  o Version 8.5
  o Version 8.0
  o Version 7.0

Remediation/Fixes

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

For WebSphere Application Server Liberty:

NOTE: If you apply the ifix, then there are additional steps needed see below

For Liberty:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix  PH02049
- --OR--
. Apply Fix Pack 18.0.0.4 or later (targeted availability 4Q 2018).

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

NOTE: If you apply the ifix, then there are additional steps needed see below

For V9.0.0.0 through 9.0.0.9:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix  PH02049
- --OR--
. Apply Fix Pack 9.0.0.10 or later (targeted availability 4Q 2018).

For V8.5.0.0 through 8.5.5.14:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH02049
- --OR--
. Apply Fix Pack 8.5.5.15 or later (targeted availability 1Q 2019).

For V8.0.0.0 through 8.0.0.15:
. Upgrade v8.0.0.15 and then apply Interim Fix PH02049

For V7.0.0.0 through 7.0.0.45:
. Upgrade to v7.0.0.45 and then apply Interim Fix PH02049

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.

ADDITIONAL STEPS AFTER APPLYING INTERIM FIX:

The interim fix only applies the fix to the CacheMonitor.ear in the
installableApps directory.  Additional, manual steps are necessary to apply the
fix to the cache monitor that is installed on an application server.  These
steps are not necessary if the fix pack was installed.

Use wsadmin to execute the following command for each profile where the cache
monitor is installed:

AdminApp.update('Dynamic Cache Monitor', 'file', '[-operation update -contents
\'${profilePath}/installedApps/${cellName}/Dynamic Cache Monitor.ear/
CacheMonitor.war/ESIContents.jsp\' -contenturi CacheMonitor.war/
ESIContents.jsp]')

Substitute ${profilePath} and ${cellName} with applicable
values for your environment.



Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

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.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by vah13

Change History

25 October 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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