The IAO/NSO will ensure that the firewall is configured to protect the network against denial of service attacks such as Ping of Death, TCP SYN floods, etc.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-3156	NET0375	SV-3156r1_rule	EBBD-1 EBBD-2 EBBD-3 ECSC-1	Medium

Description
A SYN-flood attack is a denial-of-service attack where the attacker send a huge amount of please-start-a-connection packets and then nothing else. This causes the device being attacked to be overloaded with the open sessions and eventually crash. A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers).

Description

A SYN-flood attack is a denial-of-service attack where the attacker send a huge amount of please-start-a-connection packets and then nothing else. This causes the device being attacked to be overloaded with the open sessions and eventually crash. A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers).

STIG	Date
Firewall Security Technical Implementation Guide - Cisco	2013-10-08

Details

Check Text ( C-3670r1_chk )
Have the FW administrator show you the FW configuration files and rules to verify the compliance of this requirement. CAVEAT: If the site has implemented SYN flood protection for the network using the premise router, it is not an additional requirement to implement this on the firewall.

Fix Text (F-3181r1_fix)
If the firewall support SYN-flood or ping sweep protection then enable these features. If the firewall does not support these features, enable the security features on the router to protect the network from these attacks.