The system must ignore IPv6 ICMP redirect messages.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
GEN007860-ESXI5-PF	GEN007860-ESXI5-PF	GEN007860-ESXI5-PF_rule		Medium

Description
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-middle attack. Applicable, but permanent finding - The hypervisor does not support this functionality. - The hypervisor's network segment must not be routed, except possibly to networks where other management-related entities are found. Production virtual machine traffic must not be routed to this network. ESXi 5 has a non-iptables based firewall. The firewall is enabled by default and allows Internet Control Message Protocol (ICMP) pings and communication with DHCP and DNS (UDP only) clients.

Description

ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-middle attack. Applicable, but permanent finding - The hypervisor does not support this functionality. - The hypervisor's network segment must not be routed, except possibly to networks where other management-related entities are found. Production virtual machine traffic must not be routed to this network. ESXi 5 has a non-iptables based firewall. The firewall is enabled by default and allows Internet Control Message Protocol (ICMP) pings and communication with DHCP and DNS (UDP only) clients.

STIG	Date
VMware ESXi v5 Security Technical Implementation Guide	2013-01-15

Details

Check Text ( C-GEN007860-ESXI5-PF_chk )
ESXi does not support this requirement. This is a permanent finding.

Fix Text (F-GEN007860-ESXI5-PF_fix)
This requirement is a permanent finding and cannot be fixed. An appropriate mitigation for the system must be implemented but this finding cannot be considered fixed.