II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
-
SRG-NET-000074-VPN-000250
Group -
The Cisco ASA must be configured to use a Diffie-Hellman (DH) Group of 16 or greater for Internet Key Exchange (IKE) Phase 1.
Use of an approved DH algorithm ensures the IKE (Phase 1) proposal uses FIPS-validated key management techniques and processes in the production, storage, and control of private/secret cryptographi...Rule High Severity -
SRG-NET-000168-VPN-000600
Group -
The Cisco ASA must be configured to use FIPS-validated SHA-2 at 384 bits or higher for Internet Key Exchange (IKE) Phase 1.
Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Although allowed by SP800-131Ar2 for some applications, SHA-1 is considered a compr...Rule Medium Severity -
SRG-NET-000230-VPN-000780
Group -
The Cisco ASA must be configured to use FIPS-validated SHA-2 or higher for Internet Key Exchange (IKE) Phase 2.
Authenticity protection provides protection against man-in-the-middle attacks/session hijacking and the insertion of false information into sessions. Although allowed by SP800-131Ar2 for some appl...Rule High Severity -
SRG-NET-000019-VPN-000040
Group -
The Cisco ASA VPN gateway must be configured to restrict what traffic is transported via the IPsec tunnel according to flow control policies.
Unrestricted traffic may contain malicious traffic which poses a threat to an enclave or to other connected networks. Additionally, unrestricted traffic may transit a network, which uses bandwidth ...Rule Medium Severity -
SRG-NET-000148-VPN-000540
Group -
The Cisco ASA VPN gateway must be configured to identify all peers before establishing a connection.
Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. For distributed architectures (e.g., service-oriented architectures), the d...Rule Medium Severity -
SRG-NET-000565-VPN-002400
Group -
The Cisco ASA VPN gateway must use cryptographic algorithms approved by NSA to protect NSS when transporting classified traffic across an unclassified network.
Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The VPN gateway must implement cryptographic modules adhering to the higher standards ...Rule High Severity -
SRG-NET-000337-VPN-001290
Group -
The Cisco ASA VPN gateway must be configured to renegotiate the IPsec Security Association after eight hours or less.
The IPsec security association (SA) and its corresponding key will expire either after the number of seconds or amount of traffic volume has exceeded the configured limit. A new SA is negotiated be...Rule Medium Severity -
SRG-NET-000337-VPN-001300
Group -
The Cisco ASA VPN gateway must be configured to renegotiate the IKE security association after 24 hours or less.
When a VPN gateway creates an IPsec security association (SA), resources must be allocated to maintain the SA. These resources are wasted during periods of IPsec endpoint inactivity, which could re...Rule Medium Severity -
SRG-NET-000166-VPN-000580
Group -
The Cisco ASA remote access VPN server must be configured to use a separate authentication server than that used for administrative access.
The VPN interacts directly with public networks and devices and should not contain user authentication information for all users. AAA network security services provide the primary framework through...Rule Medium Severity -
SRG-NET-000320-VPN-001120
Group -
The Cisco ASA remote access VPN server must be configured to use LDAP over SSL to determine authorization for granting access to the network.
Protecting authentication communications between the client, the VPN Gateway, and the authentication server keeps this critical information from being exploited. In distributed information systems...Rule Medium Severity
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.