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XCCDF
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide
SRG-OS-000480-GPOS-00232
The Ubuntu operating system must have an application firewall enabled.
The Ubuntu operating system must have an application firewall enabled.
An XCCDF Rule
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The Ubuntu operating system must have an application firewall enabled.
Medium Severity
<VulnDiscussion>Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>