Tenable Web App Scanning

Deploy Tenable Web App Scanning

Deploy Tenable Web App Scanning according to the steps outlined in the Tenable Web App Scanning User Guide, or based on guidelines received directly from Tenable Professional Services.

Configure Tenable Web App Scanning for Use in Tenable One

Once you have installed Tenable Web App Scanning, consider the following best practices for configuring the product for use:

Setting Goals

Once you deploy Tenable Web App Scanning, create some quick scans to provide a high-level assessment of the target to establish your baseline. Then, consider setting some goals:

• Identify what qualifies as acceptable for your organization (for example, no critical scan results? All web apps be scanned monthly? All external websites are "clean"?)

• Note that your goals may shift once you interact with this data within the rest of Tenable One as further reporting is likely to outweigh pure numbers.

Known Limitations

Be aware of the following limitations when using Tenable Web App Scanning in Tenable One:

• Vulnerability Priority Rating (VPR) is not exposed in Tenable Web App Scanning.

• Asset Criticality Rating (ACR) is NOT exposed or customizable in Tenable Web App Scanning.

  Note: ACR does appear in Tenable Inventory, but is not currently customizable in that interface.

• Tenable Web App Scanning data is not currently certified within Attack Path Analysis.

Onboarding Milestones

Tenable suggests you complete the following milestones to ensure your success before proceeding with your Tenable One deployment process:

• In Lumin Exposure View, gain critical business context by getting business-aligned cyber exposure score for critical business services, processes and functions, and track delivery against SLAs. Track overall web application risk to understand the risk contribution of web applications to your overall cyber exposure score.

  • Review the Global exposure card to understand your holistic score. Click Per Exposure to understand what factors are driving your score, and by how much.

  • Review the Web Applications exposure card.

  • Configure the exposure view settings to set a customized Card Target and configure Remediation SLA and SLA Efficiency based on your company policy.

  • Create a custom exposure card based on business context (for example, Web App Owner, Asset Criticality, Application, Internal/External Web Servers, or Ecommerce/Supporting Asset).

• In Tenable Inventory, enhance asset intelligence by accessing deeper asset insights, including related attack paths, tags, exposure cards, users, relationships, and more. Improve risk scoring by gaining a more complete view of asset exposure, with an asset exposure score that assesses total asset risk and asset criticality.

  • Review your Tenable Web App Scanning assets to understand the strategic nature of the interface. This should help set your expectations on what features to use within Tenable Inventory, and when.

  • Review the Tenable Queries that you can use, edit, and bookmark.

  • Familiarize yourself with the Global Search query builder and its objects and properties. Bookmark custom queries for later use.

    Tip: To get a quick view of what properties are available:

    • In the query builder, type has. A list of suggested asset properties appears.
    • Customize the list by adding a column. A list of available columns/properties appears.
  • Drill down into the asset details page to view asset properties and all associated context views.

  • (Optional) Create a tag that combines different asset classes.

• In Attack Path Analysis, optimize risk prioritization by exposing risky attack paths that traverse the attack surface, including web apps, IT, OT, IoT, identities, ASM, and prevent material impact. Streamline mitigation by identifying choke points to disrupt attack paths with mitigation guidance, and gain deep expertise with AI insights.

  • View the Attack Path Analysis Dashboard for a high-level view of your vulnerable assets such as the number of attack paths leading to these critical assets, the number of open findings and their severity, a matrix to view paths with different source node exposure score and ACR target value combinations, and a list of trending attack paths.

    • Review the Top Attack Path Matrix and click the Top Attack Paths tile to view more information about paths leading to your “Crown Jewels”, or assets with an ACR of 7 or above.

    You can adjust these if needed to ensure you’re viewing the most critical attack path data and findings.

  • On the Findings page, view all attack techniques that exist in one or more attack paths that lead to one or more critical assets by pairing your data with advanced graph analytics and the MITRE ATT&CK® Framework to create Findings, which allow you to understand and act on the unknowns that enable and amplify threat impact on your assets and information.

  • On the Discover page, generate attack path queries to view your assets as part of potential attack paths:

    • Generate an Attack Path using a Built-in Query

    • Generate an Asset Query using the Asset Query Builder

    • Generate an Attack Path Query using the Attack Path Query Builder

    Then, you can view and interact with the Attack Path Query and Asset Query data via the query result list and the interactive graph.

What to do next

Deploy Tenable Cloud Security.