Create Recast Rules from the Findings Page

On the Findings page, you can create rules which change the status of Vulnerabilities, Web Applications or Host Audits or hide them. You can also create rules from Recast, as described in Add Recast Rules.

Tip: To learn more about when to create rules and how to manage them, see Recast .

Here are the rule types that you can add:

Rule Description
Recast In the Vulnerabilities and Web Applications tabs, modify the severity findings based on query criteria.
Accept In the Vulnerabilities, Host Audits and Web Applications tabs, accept the risk of vulnerability findings for Vulnerabilities and Web Applications or accept the Original Result of host audit findings and hide them from the Findings table.
Change Result In the Host Audits tab, change the Original Result of host audit findings, for example, by changing Failed to Passed.

Add a Recast or Accept Rule

To add a Recast or Accept rule from the Findings page:

  1. In the left navigation, click Explore > Findings

    The Findings page appears.

  2. Click on the Vulnerabilities or Web Applications tab.

  3. In the table, in the row for the finding for which you want to create a rule, click the check box.

    An action bar appears.

  4. Click More.

    A menu appears.

  5. Click Recast.

    The Add Recast Rule window appears.

  6. Configure the following options:

    Option Description
    Action (required) Click Accept or Recast. To learn about these rule types, see About Recast and Accept Rules.
    Vulnerability Plugin ID Type the Tenable Plugin ID for the vulnerability, for example 70658.
    Original Severity Shows the original severity identified by Tenable Vulnerability Management.
    New Severity (Recast rules only) Select the severity you want to change the corresponding vulnerability to, for example Low.
    Targets

    Select All or Custom. If the rule will override other rules, a warning appears. The most recently created rule trumps other rules.
    Target Hosts

    For Custom targets, enter up to 1000 comma-separated IPv4 addresses or ranges, hostnames, Classless Inter-Domain Routing (CIDR) notations, or fully qualified domain names (FQDNs).

    Caution: If you target findings by IP address and have multiple networks, the rule matches findings on all your networks. For more information, see Networks.
    Expires Select After or Never. If you select After, type a number of days or a date when the rule will expire.
    Comments Type comments to provide rule details.
    Report as false positive to Tenable (Accept Rules Only) (Optional) Enable this toggle when a plugin generates inaccurate findings and you want Tenable to review the results.

  7. Click Save.

    The system processes the rule, which may take time if many findings are targeted. When complete, the rule appears in either the Vulnerabilities or Web Applications table in Recast and the system updates the Findings table.

Create a Change Result or Accept Rule

Note: For best performance, the system supports a maximum of 5000 Change Result and Accept rules in each container, total.

To add a Change Result or Accept rule:

  1. In the left navigation, click Explore > Findings.

    The Findings page appears.

  2. Click on the Host Audits tab.

  3. In the table, in the row for the finding for which you want to create a rule, click the check box.

    An action bar appears.

  4. Click More.

    A menu appears

  5. Click Add Change Result Rule.

    The Add Change Result Rule window appears.

  6. Configure the following options:

    Option Description
    Action Click Accept or Change Result. To learn about these rule types, see About Change Result and Accept Rules.
    Category Select a category for the new rule, for example, Windows.
    Audit File

    Select an audit file to run against your assets, for example, CIS_MS_Windows_11_Enterprise_Level_1_v1.0.0.audit.
    Audit Name

    Type an audit name, for example, 9.3.1 Ensure 'Windows Firewall: Public: Firewall state' is set to 'On (recommended)'.
    Original Result

    Select the original result of the host audit, for example, Failed.
    New Result (Change Result rules only) Select the result to change the targeted findings to.
    Targets (Optional) Select Custom. If the rule will override other rules, a warning appears. The most recently created rule trumps other rules.
    Target Hosts

    For Custom targets, type a comma-separated list of IPv4 addresses or ranges, hostnames, Classless Inter-Domain Routing (CIDR) notation, or fully qualified domain names (FQDNs). The system supports up to 100 items.
    Expires (Optional) Select After or Exact Date. Then, type a date when the rule expires or click the icon and select a date.
    Comments Type comments to provide rule details.

  7. Click Save.

    The system processes the rule, which may take time. When complete, the Findings page updates and the rule appears in Recast.