Detections
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UBTU-16-030040 - An application firewall must be enabled on the system.

Information

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.

Solution

Enable the Uncomplicated Firewall by using the following commands:

# sudo systemctl start ufw

# sudo systemctl enable ufw

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_16-04_LTS_V2R3_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-215112r610931_rule, STIG-ID|UBTU-16-030040, STIG-Legacy|SV-90485, STIG-Legacy|V-75805, Vuln-ID|V-215112

Plugin: Unix

Control ID: a9db54d71b5b45965c96f4fac27d8aabb2bde59007b0926a9579db741671b000