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V-266265

CAT II (Medium)

The F5 BIG-IP appliance must be configured to filter outbound traffic on all internal interfaces.

Rule ID

SV-266265r1024583_rule

STIG

F5 BIG-IP TMOS Firewall Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-002403

Discussion

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. Access control policies and access control lists implemented on devices, such as firewalls, that control the flow of network traffic ensure the flow of traffic is only allowed from authorized sources to authorized destinations. Networks with different levels of trust (e.g., the internet) must be kept separated. This requirement addresses the binding of the egress filter to the interface/zone rather than the content of the egress filter.

Check Content

From the BIG-IP GUI:
1. Security.
2. Network Firewall.
3. Policies.
4. <Policy Name>

If configured rules in the policy do not filter outbound traffic on all internal interface, this is a finding.

Fix Text

From the BIG-IP GUI:
1. Security.
2. Network Firewall.
3. Policies.
4. <Policy Name>
5. Configure rules to using packet headers and packet attributes, including source and destination IP addresses and ports to filter outbound traffic on all internal interfaces.