IBM WebSphere Operational Decision Management: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3847
            IBM WebSphere Operational Decision Manager updated
                             12 December 2018

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

Product:           IBM WebSphere Operational Decision Management
Publisher:         IBM
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Confidential Data -- Existing Account
                   Denial of Service        -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1821  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10744149

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Security Bulletin: IBM WebSphere Operational Decision Management is affected by
CVE-2018-1821 vulnerability

Document information
Software version: 8.5, 8.6, 8.7, 8.8, 8.9
Operating system(s): Platform Independent
Reference #: 0744149
Modified date: 11 December 2018

Summary

IBM WebSphere Operational Decision Management has addressed the vulnerability
CVE-2018-1821.

Vulnerability Details

CVEID: CVE-2018-1821
DESCRIPTION: IBM Operational Decision Manager is vulnerable to a XML External
Entity Injection (XXE) attack when processing XML data. A remote attacker could
exploit this vulnerability to expose sensitive information or consume memory
resources.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
150170 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)

Affected Products and Versions

  * IBM Operational Decision Manager v8.6
  * IBM Operational Decision Manager v8.7
  * IBM Operational Decision Manager v8.8
  * IBM Operational Decision Manager v8.9

Remediation/Fixes

Select the following interim fix to upgrade your installation of ODM based on
your version of the product:

Interim fix for APAR RS03231 and RS03192 is available from IBM Fix Central:

IBM Operational Decision Manager v8.6: 8.6.0.3-WS-ODM_DS-IF035

IBM Operational Decision Manager v8.7: 8.7.1.2-WS-ODM_DS-IF079

IBM Operational Decision Manager v8.8: 8.8.1.3-WS-ODM_DS-IF090

IBM Operational Decision Manager v8.9: 8.9.2.1-WS-ODM_DS-IF004


For IBM WebSphere Operational Decision Management v7.1, v7.5, v8.0, v8.5 IBM
recommends upgrading to a fixed supported version.

Workarounds and Mitigations

For v8.6 and v8.7  a context parameter has been added to HTDS Application
descriptor to prevent vulnerability in the validation feature with JDK 1.6:
Edit the web.xml  in the  HTDS WAR file to change the property 
DisableInsecureXMLValidation as needed  


<!-- Specify whether XML validation of requests is enabled for Java versions
lower than 1.7.0
        Possible values are : true, false
        true : XML validation is disabled when Java version is before 1.7.0
        false : XML validation is enabled, for all Java versions
    -->
    <context-param>
        <param-name>DisableInsecureXMLValidation</param-name>
        <param-value>false</param-value>
    </context-param>

Change History

Dec 11 2018: original version published

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