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

Security Bulletin


IBM Operational Decision Manager 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 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


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:

IBM Operational Decision Manager v8.7:

IBM Operational Decision Manager v8.8:

IBM Operational Decision Manager v8.9:

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

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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.




The vulnerability was reported to IBM by Mohamed M. Fouad of SecureMisr

Change History

Dec 11 2018: original version 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.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
19 December 2018