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Security Bulletin: A vulnerability in Ruby on Rails affects IBM License Metric Tool v9 (CVE-2020-8164).

Security Bulletin


There is a vulnerability in Ruby On Rails that is used by IBM License Metric Tool.

Vulnerability Details

CVEID:   CVE-2020-8164
DESCRIPTION:   Ruby on Rails could allow a remote attacker to obtain sensitive information, caused by the deserialization of untrusted data. By sending a specially crafted request, a remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 7.5
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM License Metric ToolAll


Upgrade to version 9.2.21 or later using the following procedure:

In BigFix console, expand IBM License Reporting (ILMT) node under Sites node in the tree panel.
Click Fixlets and Tasks node. Fixlets and Tasks panel will be displayed on the right.
In the Fixlets and Tasks panel locate Upgrade to the latest version of IBM License Metric Tool 9.x fixlet and run it against the computer that hosts your server.

Workarounds and Mitigations


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Change History

29 Sep 2020: Initial Publication

*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.

Document Location


[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS8JFY","label":"IBM License Metric Tool"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.2","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
01 October 2020