Security Bulletin: Information disclosure for IBM Infosphere Global Name Management

Security Bulletin

Summary

There is a potential information disclosure vulnerability in Global Name Management when using Enterprise Name Search. The information disclosure is due to an XML external entity (XXE) vulnerability. Customers not using Enterprise Name Search are not affected.

Vulnerability Details

CVEID: CVE-2019-4433
DESCRIPTION: IBM InfoSphere Global Name Management is vulnerable to an 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/162890 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 InfoSphere Global Name Management 6.0

IBM InfoSphere Global Name Management 5.0

Remediation/Fixes

IBM Infosphere Global Name Management 6.0

To fix this vulnerability:

Create the file <ENS install root>/java/jre/lib/jaxp.properties . Typically there is already a file named jaxp.properties.sample in that directory, with all of its contents commented out. Copy that file to a file named jaxp.properties, or create an empty file with that name. Then append the following lines to the end of the file:

# For security, do not allow external DTDs, schemas, or stylesheets
javax.xml.accessExternalDTD=""
javax.xml.accessExternalSchema=""
javax.xml.accessExternalStylesheet=""

IBM Infosphere Global Name Management 5.0

To fix this vulnerability:

Download and install IBM Infosphere Global Name Management 5.0.0.1 iFix008 or greater from IBM Fix Central.

Get Notified about Future Security Bulletins

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

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Acknowledgement

The vulnerability was reported to IBM by Jose Castro Almeida.

Change History

09 August 2019: original document published
14 August 2019: Updated acknowledgement

*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

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

Document Location

Worldwide

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEV5M","label":"InfoSphere Global Name Management"},"Component":"Enterprise Name Search","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.0;6.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Tips

Security Bulletin: Information disclosure for IBM Infosphere Global Name Management