The firewall implementation must use organizationally defined replay-resistant authentication mechanisms for network access to privileged accounts.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-37177	SRG-NET-000146-FW-000083	SV-48938r1_rule		Medium

Description
All authentication credentials must be maintained on an authentication server. Messages between the authenticator and the firewall validating user credentials must not be vulnerable to a replay attack possibly enabling an unauthorized user to gain access to any firewall. A replay attack is a network attack in which a valid session or series of IP packets is intercepted by a malicious user who later transmits the packets to gain access to the target device.

Description

All authentication credentials must be maintained on an authentication server. Messages between the authenticator and the firewall validating user credentials must not be vulnerable to a replay attack possibly enabling an unauthorized user to gain access to any firewall. A replay attack is a network attack in which a valid session or series of IP packets is intercepted by a malicious user who later transmits the packets to gain access to the target device.

STIG	Date
Firewall Security Requirements Guide	2013-04-24

Details

Check Text ( C-45501r1_chk )
If authentication functionality is provided by the underlying platform's account management system or by a network authentication server rather than the firewall application itself, this is not a finding. Verify the configuration for the firewall requires access by a DoD-approved replay-resistant authentication method, such as DoD PKI or DoD Alternate Token. If DoD PKI or DoD Alternate Token is not used for authentication, this is a finding.

Check Text ( C-45501r1_chk )

If authentication functionality is provided by the underlying platform's account management system or by a network authentication server rather than the firewall application itself, this is not a finding.

Verify the configuration for the firewall requires access by a DoD-approved replay-resistant authentication method, such as DoD PKI or DoD Alternate Token.

If DoD PKI or DoD Alternate Token is not used for authentication, this is a finding.

Fix Text (F-42114r1_fix)
Configure local accounts to use DoD-approved, replay resistant authentication mechanisms for access to the firewall. Approved methods are DoD PKI or DoD Alternate Token.