vulnerability-detector

This section covers the configuration for the Vulnerability detection module.

Options

enabled
interval
run_on_start
min_full_scan_interval
retry_interval
provider

Options	Allowed values
enabled	yes, no
interval	A positive number (seconds)
run_on_start	yes, no
min_full_scan_interval	A positive number (seconds)
retry_interval	A positive number (seconds)
provider	A valid vulnerability vendor

enabled

Enables the module.

Default value	no
Allowed values	yes, no

interval

Time between vulnerabilities scans.

Default value	5m
Allowed values	A positive number that should contain a suffix character indicating a time unit: s (seconds), m (minutes), h (hours) or d (days).

run_on_start

Runs updates and vulnerabilities scans immediately when the service is started.

Default value	yes
Allowed values	yes, no

min_full_scan_interval

The time during which a full scan will not be performed even if the database of vulnerabilities is updated. When this time expires, a full scan will be performed only if the CVEs database has changed.

Default value	6 hours
Allowed values	A positive number that should contain a suffix character indicating a time unit: s (seconds), m (minutes), h (hours) or d (days).

retry_interval

The time to wait after a scan is completed to retry the agents that had a problem being scanned.

Default value	30 seconds
Allowed values	A positive number that should contain a suffix character indicating a time unit: s (seconds), m (minutes), h (hours), or d (days).

provider

Note

The NVD provider must always be enabled since it aggregates vulnerabilities for all the OS supported. Otherwise, the scanner will not work properly.

Configuration block to specify vulnerability updates.

Allowed tags	name	Defines a vulnerability information provider.
		Allowed values	canonical
			debian
			redhat
			arch
			alas
			msu
			suse
			nvd
Allowed values	enabled	Enables the vulnerability provider update.
		Default value	no
		Allowed values	yes, no
	os	Feed to update.
		Allowed values	provider	feed
			canonical	trusty / 14
				xenial / 16
				bionic / 18
				focal / 20
				jammy / 22
			debian	buster / 10
				bullseye / 11
			alas	amazon-linux / 1
				amazon-linux-2 / 2
			redhat	5
				6
				7
				8
				9
			suse	11-server
				11-desktop
				12-server
				12-desktop
				15-server
				15-desktop
			arch	`Does not use this option.`
			msu	`Does not use this option.`
			nvd	`Does not use this option.`
		Allowed tags	update_interval		How often the vulnerability database is updated. It has priority over the update_interval option of the provider block.
					Default value	The value indicated by the update_interval option of the provider block.
					Allowed values	A positive number that should contain a suffix character indicating a time unit: s (seconds), m (minutes), h (hours) or d (days).
			url		Defines the link to an alternative OVAL or ALAS files.
					Allowed values	Link to the feed to be downloaded. See offline update for more information.
			path		Defines the path to an alternative OVAL or ALAS file.
					Allowed values	Path where the feed is located. See offline update for more information.
			port		Defines the connection port when using the `url` attribute.
					Allowed values	A valid port.
			allow		Defines compatibility with unsupported systems.
					Allowed values	A valid operating system not supported by default. You can find a guide on how to set it up here.
	update_interval	How often the vulnerabilities of the provider are updated. It can be overwritten by the attribute with the same name of `<os>`.
		Default value	1 hour.
		Allowed values	A positive number that should contain a suffix character indicating a time unit: s (seconds), m (minutes), h (hours) or d (days).
	download_timeout	Download timeout in seconds.
		Default value	300
		Allowed values	A positive number to indicate the timeout in seconds.
	update_from_year	Year from which the provider will be updated.
		Default value
		Allowed values	provider	value
			redhat	`Does not use this option.`
			nvd	A valid year greater or equal than 2002.
			arch	`Does not use this option.`
			alas	`Does not use this option.`
			msu	`Does not use this option.`
			suse	`Does not use this option.`
			canonical	`Does not use this option.`
			debian	`Does not use this option.`
	url	Defines the link to an alternative feed files.
		Allowed values	provider	value
			redhat	Parameterized link to download the feed files obtained from Red Hat Security Data API. You can find a guide on how to set it up here.
			nvd	Parameterized link to download the feed files obtained from National Vulnerability Database. You can find a guide on how to set it up here.
			arch	Parameterized link to download the feed file obtained from Arch Security. You can find a guide on how to set it up here.
			msu	Parameterized link to download the feed file obtained from Wazuh feed. You can find a guide on how to set it up here.
			debian	Parameterized link to download the feed files obtained from Debian Security Tracker. You can find a guide on how to set it up here.
		Allowed tags	start	Defines the first value which the tag will be substituted.
Allowed values \| A numeric value that in substitution with the tag forms a valid link.
end			Defines the last value for which the tag will be substituted.
			Allowed values \| A numeric value that in substitution with the tag forms a valid link.
port			Defines the connection port.
			Allowed values \| A valid port.
path			Defines the path to an alternative feed file.
	Allowed values	provider	value
		redhat	Path with regular expression that matches the feed files obtained from Red Hat Security Data API.
		nvd	Path with regular expression that matches the feed files obtained from National Vulnerability Database.
		arch	Path with regular expression that matches the feed file obtained from Arch Security.
		msu	Path with regular expression that matches the feed file obtained from Wazuh feed.
		debian	Path with regular expression that matches the feed files obtained from Debian Security Tracker.

Example of configuration

The following configuration updates the vulnerability database for Ubuntu, Debian, Red Hat, Amazon Linux, Arch, and Microsoft Windows.

<vulnerability-detector>
    <enabled>yes</enabled>
    <interval>5m</interval>
    <min_full_scan_interval>6h</min_full_scan_interval>
    <run_on_start>yes</run_on_start>

    <!-- Ubuntu OS vulnerabilities -->
    <provider name="canonical">
      <enabled>yes</enabled>
      <os>trusty</os>
      <os>xenial</os>
      <os>bionic</os>
      <os>focal</os>
      <os>jammy</os>
      <update_interval>1h</update_interval>
    </provider>

    <!-- Debian OS vulnerabilities -->
    <provider name="debian">
      <enabled>yes</enabled>
      <os>buster</os>
      <os>bullseye</os>
      <update_interval>1h</update_interval>
    </provider>

    <!-- RedHat OS vulnerabilities -->
    <provider name="redhat">
      <enabled>yes</enabled>
      <os>5</os>
      <os>6</os>
      <os>7</os>
      <os>8</os>
      <os>9</os>
      <update_interval>1h</update_interval>
    </provider>

    <!-- Amazon Linux OS vulnerabilities -->
    <provider name="alas">
        <enabled>yes</enabled>
        <os>amazon-linux</os>
        <os>amazon-linux-2</os>
        <update_interval>1h</update_interval>
    </provider>

    <!-- Arch OS vulnerabilities -->
    <provider name="arch">
      <enabled>yes</enabled>
      <update_interval>1h</update_interval>
    </provider>

    <!-- SUSE Linux Enterprise OS vulnerabilities -->
    <provider name="suse">
      <enabled>yes</enabled>
      <os>11-server</os>
      <os>11-desktop</os>
      <os>12-server</os>
      <os>12-desktop</os>
      <os>15-server</os>
      <os>15-desktop</os>
      <update_interval>1h</update_interval>
    </provider>

    <!-- Windows OS vulnerabilities -->
    <provider name="msu">
      <enabled>yes</enabled>
      <update_interval>1h</update_interval>
    </provider>

    <!-- Aggregate vulnerabilities -->
    <provider name="nvd">
      <enabled>yes</enabled>
      <update_from_year>2010</update_from_year>
      <update_interval>1h</update_interval>
    </provider>

</vulnerability-detector>

Note

See the Vulnerability detector section to obtain more information about this module.