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V-266255

CAT I (High)

The F5 BIG-IP appliance must be configured to use filters that use packet headers and packet attributes, including source and destination IP addresses and ports, to prevent the flow of unauthorized or suspicious traffic between interconnected networks with different security policies, including perimeter firewalls and server VLANs.

Rule ID

SV-266255r1024867_rule

STIG

F5 BIG-IP TMOS Firewall Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-001414

Discussion

Blocking or restricting detected harmful or suspicious communications between interconnected networks enforces approved authorizations for controlling the flow of traffic. The firewall that filters traffic outbound to interconnected networks with different security policies must be configured with filters (e.g., rules, access control lists [ACLs], screens, and policies) that permit, restrict, or block traffic based on organization-defined traffic authorizations. Filtering must include packet header and packet attribute information, such as IP addresses and port numbers. Configure filters to perform certain actions when packets match specified attributes, including the following actions: - Apply a policy. - Accept, reject, or discard the packets. - Classify the packets based on their source address. - Evaluate the next term in the filter. - Increment a packet counter. - Set the packets' loss priority. - Specify an IPsec SA (if IPsec is used in the implementation). - Specify the forwarding path. - Write an alert or message to the system log.

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 use packet headers and packet attributes, including source and destination IP addresses and ports, 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 use packet headers and packet attributes, including source and destination IP addresses and ports in accordance with the SSP and site configuration documentation.