plugins and research
18 TopicsNessus now has Windows LAPS Support
Summary: Nessus now has the ability to leverage accounts managed by Microsoft Windows LAPS. How LAPS works: Since LAPS managed accounts have their passwords rotated routinely, users cannot just directly provide the credentials in their Scan Policy. Before this change, users would instead have to make an additional privileged account on each LAPS enabled Host to provide to Nessus. Currently Nessus supports Entra LAPS allowing a scan to pull LAPS Managed Credentials from a customer’s remote Entra instance. Now, Nessus can do the same for Windows LAPS, allowing customers with local LAPS setups to gain the same benefits! Without Windows LAPS support, customers must make dedicated account for Nessus to use to scan targets Change: With this LAPS support change, during the startup phase of a scan, Nessus will reach out to a customer provided Domain Controller hosting an AD forest with LAPS enabled, and pull a list of all Local Admin Accounts for devices managed by LAPS. Nessus will then attempt to use these retrieved LAPS managed accounts as credentials when attempting to access a target host. With Windows LAPS Support, Customers need only provide a single Credential that allows Nessus to retrieve the actual credentials for LAPS Managed Devices How to enable it: To make use of Nessus’ Windows LAPS support, a customer needs only to provide the necessary info to their scan/policy via the Windows LAPS Credential. They’ll need to provide us the IP of the DC, Credentials for an account on that DC with the necessary permissions*, and the DistinguishedName of the OU that contains their LAPS managed devices. *The Account for retrieving Windows LAPS credentials needs the following permissions General Recommend the Account be added to the BUILTIN/Administrators AD Group as it grants all required permissions, including: Access to the $Admin Able to log on to the DC remotely Able to run Powershell WMI and DCOM access to Root/CIMV2 WMI Namespace LAPS Permissions LapsADReadPasswordPermission rights to the LAPS OU Be an Authorized Password Decryptor in the LAPS GPO (without this, Nessus will not be able to retrieve passwords protected by LAPS Encryption). Members of the Domain Administrators group are Authorized Password Decryptors by default. For additional information see: https://learn.microsoft.com/en-us/windows-server/identity/laps/laps-overview Impact: Customers using Rotating Host passwords managed through Microsoft Windows LAPS can now leverage these credentials in their Nessus scans for more secure scanning configurations. Target Release Date: Nessus, T.VM On/About 09 JUN 2025 T.SC TBDResearch Release Highlight - SSH Session Reuse
Summary Nessus scan will support an opt-in feature to reuse SSH sessions during a scan where possible when running Nessus versions 10.9.0 and greater. This update was made in response to numerous customer requests for reducing the number of new SSH connections established during remote network scans and the associated increase in network traffic. Change A new scan configuration template option will be available for customers to actively enable the [Reuse SSH connections] configuration in their scan policies in Advanced Settings under Advanced Performance Options. Customers can return to the classic SSH connection functionality by changing [Reuse SSH connections] to the default “off” setting in their scan policies. Customers must be running a version of Nessus 10.9.0 or greater that supports this feature and have a Plugin Feed that displays the scan configuration policy user interface and NASL plugin set with the SSH session reuse functionality. Impact Customers should see a significant decrease in the total number of SSH sessions established during a Nessus scan as well as a reduction in load on Enterprise authorization, access, and accounting (AAA) tooling such as RADIUS servers and other connection management services. There should be no difference in scan results between scans that leverage SSH Session Reuse and scans that do not. If customers experience any such issues, the feature can easily be toggled off to return SSH connections during scans to the classic connection functionality. Target Release Date January 15, 2026Improved Resource Management Control
Summary Improved resource management control for plugins leveraging Windows Management Instrumentation (WMI) on Nessus Agent 11.1.0 or higher. Impact Customers with Nessus Agent 11.1.0 and later versions will have the ability to granularly control the CPU resources consumed during scans. This update ensures that plugins respect the resource usage setting selected during scan configuration by launching commands as children of the Nessus Agent, rather than invoking them via WMI. The release of these plugins will continue through January, with a phased approach over three weeks. The first release will be January 13th, the second January 20th, and the final planned plugin update on January 27th. Target Release Date Phase 1 plugin set: January 13, 2025 Phase 2 plugin set: January 20, 2025 Phase 3 plugin set: January 27, 2025Distinct Agent Plugin Databases for RPM-Based Distributions
Summary Tenable will now provide separate agent plugin databases for RPM-based Linux distributions. Impact Historically, the majority of plugins for RPM-based Linux distributions have all been distributed via a single artifact. Starting with Nessus Agent 11.1.0, Tenable will now publish separate artifacts based on the following plugin families: Alma Linux Local Security Checks CentOS Local Security Checks Miracle Linux Local Security Checks Oracle Linux Local Security Checks Red Hat Enterprise Linux Local Security Checks Rocky Linux Local Security Checks As a result, customers will see a reduction in the overall size of the agent database (15-31% reduction at rest, 7-14% downloaded), directly leading to smaller updates and reduced resource consumption during the update process. This improvement will be available to all customers using Agent 11.1.0 or later versions. Target Release Date January 13, 2026New Plugin Family: UnionTech Local Security Checks
Summary Tenable will now provide vulnerability check plugins for UnionTech Unity Operating System (UOS). Impact Customers with UnionTech Unity Operating System (ServerA and ServerE) systems in their environments will be able to scan them for vulnerabilities. These plugins will have the family “UnionTech Local Security Checks”. These plugins will not have agent support at this time, but this support is expected in a future release. Target Release Date September 30, 2025