Cisco ASA Firewall Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Cisco ASA must be configured to enable threat detection to mitigate risks of denial-of-service (DoS) attacks.
A firewall experiencing a DoS attack will not be able to handle production traffic load. The high utilization and CPU caused by a DoS attack will also have an effect on control keep-alives and time...Rule Medium Severity -
The Cisco ASA must be configured to filter outbound traffic on all internal interfaces.
If outbound communications traffic is not filtered, hostile activity intended to harm other networks or packets from networks destined to unauthorized networks may not be detected and prevented. A...Rule Medium Severity -
The Cisco ASA must be configured to inspect all inbound and outbound traffic at the application layer.
Application inspection enables the firewall to control traffic based on different parameters that exist within the packets such as enforcing application-specific message and field length. Inspectio...Rule Medium Severity -
The Cisco ASA must be configured to restrict it from accepting outbound packets that contain an illegitimate address in the source address field via an egress filter or by enabling Unicast Reverse Path Forwarding (uRPF).
A compromised host in an enclave can be used by a malicious platform to launch cyberattacks on third parties. This is a common practice in "botnets", which are a collection of compromised computers...Rule Medium Severity -
The Cisco ASA must be configured to implement scanning threat detection.
In a port scanning attack, an unauthorized application is used to scan the host devices for available services and open ports for subsequent use in an attack. This type of scanning can be used as a...Rule High Severity
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