Nessus Agent 8.3.1 Release Notes - 2021-09-07

Changed Functionality and Performance Enhancements

The following are changed functionality and performance enhancements included in Nessus Agent 8.3.1:

  • Operating System support for Fedora 33 and 34.

  • Support for OpenSSL 1.1.1l.

For more information about the features and functionality supported in this release, see the Nessus Agent user guide.

Security Updates

This release includes fixes for potential vulnerabilities. For more information, see the following Tenable Product Security Advisory:

Bug Fixes

Bug Fix Defect ID
Resolved an issue where Agent would incorrectly identify itself as a source for jamalloc software updates in some Linux installs. 01195286
Resolved an issue where Agent would report an incorrect error code for an unlinked agent. 01200542

Upgrade Notes

  • Users upgrading agents via Nessus Manager will not upgrade to 8.2.0 and later unless Nessus Manager is already updated to 8.12.0 or higher.

  • New Tenable.io Domain - As a part of continuous security and scalability improvements to Tenable infrastructure, we have added a new sensor.cloud.tenable.com domain that Tenable.io-linked agents communicate with.

    • Starting with Agent 8.1.0, Tenable.io-linked agents communicate with Tenable.io using sensor.cloud.tenable.com. In case agents are not able to connect to the new domain, they fall back to using cloud.tenable.com. Agents with earlier versions will continue to use the cloud.tenable.com domain.

    • Recommended Action: If you use domain allow lists for firewalls, Tenable recommends adding *.cloud.tenable.com (with the wildcard character) to the allow list. This ensures communication with sensor.cloud.tenable.com and all future subdomains, reducing operational overhead. Please contact your network administrator for assistance with making necessary changes to your allow list.
  • You can upgrade to the latest version of Nessus Agent from any previously supported version.
  • If your upgrade path skips versions of the Agent, Tenable recommends reviewing the release notes for all skipped versions to learn about new features and bug fixes.