Tenable.ad 3.6 Release Notes (2021-09-22)

Note: These Release Notes apply to SaaS, except when specified as an on-premises version.

New Features

Tenable.ad version 3.6 includes the following new features:

  • A lockout policy to mitigate brute force attacks against authentication mechanisms. It aims to lock out user accounts after too many failed login attempts.

  • New Indicator-of-Attack: PETIT-POTAM to detect attempts by PETIT-POTAM to coerce remote servers to authenticate with another machine on the network due to a Windows vulnerability.

  • A licensing feature to allow you to update your Tenable.ad license.


Tenable.ad version 3.6 contains the following patches:

Patch Defect ID
The Sysvol Crawler continues even if the registry.pol file exceeds a given size. N/A
The LDAP initialization succeeds even when it crawls an object that does not have an attribute change. N/A
The parsing of POL files now works correctly. N/A
There are no longer lost IoA events. N/A
When creating a PSO after creating a domain, Tenable.ad no longer displays the reason "No PSO are applied on the domain". N/A

Bug Fixes

Tenable.ad version 3.6 includes the following bug fixes:

Bug Fix Defect ID
Tenable.ad does not consider an empty GpcFileSysPath attribute as deviant. N/A
The IoA task script supports Windows Server 2008R2. N/A
Tenable.ad no longer considers as deviant alerts from domains that were removed. N/A