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The Cisco ASA VPN remote access server must be configured to use an approved High Assurance Commercial Solution for Classified (CSfC) cryptographic algorithm for remote access to a classified network.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-239985CASA-VN-000760SV-239985r878134_ruleCCI-002450high
Description
Use of improperly configured or lower assurance equipment and solutions could compromise high-value information. The National Security Agency/Central Security Service's (NSA/CSS) CSfC program enables commercial products to be used in layered solutions to protect classified National Security Systems (NSS) data. Based on an analysis of the impact of quantum computing, cryptographic algorithms specified by CNSSP-15 and approved for use in products in the CSfC program have been changed to more stringent protocols and configured with increased bit sizes and other secure characteristics to protect against quantum computing threats. The Commercial National Security Algorithm Suite (CNSA Suite) replaces Suite B.
STIGDate
Cisco ASA VPN Security Technical Implementation Guide2024-08-22

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (9) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
CRY-01.1Alternate Physical Protection
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
CRY-05Encrypting Data At Rest
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
CRY-01.2Export-Controlled Cryptography
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (29) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-3Access Enforcement
1.00
AU-9(3)Cryptographic Protection
1.00
CM-5(6)Limit Library Privileges
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
IA-2(8)Access to Accounts — Replay Resistant
1.00
IA-2(9)Network Access to Non-privileged Accounts — Replay Resistant
1.00
IA-3(1)Cryptographic Bidirectional Authentication
1.00
IA-5(1)Password-based Authentication
1.00

+19 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.13.11
1.00
CCI1 mapping
CCI-002450
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-01
1.00
PR.DS-02
1.00
PR.DS-10
1.00

Who does this work

8 NICE work roles and 7 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-239985r878134_chk)

Verify the ASA uses an approved High Assurance CSfC cryptographic algorithm for remote access to a classified network. Step 1: Verify IKE Phase 1 is configured in compliance with CSNA/CNSSP-15 parameters as shown in the example below. crypto ikev2 policy 2 encryption aes-256 integrity null group 19 prf sha384 Step 2: Determine the crypto map for IKE Phase 2 used is in compliance with CSNA/CNSSP-15 as in the example below. crypto map CSNA_MAP 10 set ikev2 ipsec-proposal AES-256 Step 3: Verify the proposal specifies CSNA/CNSSP-15 parameters. crypto ipsec ikev2 ipsec-proposal AES-256 protocol esp encryption aes-256 If the ASA is not configured to use an approved High Assurance CSfC cryptographic algorithm for remote access to a classified network, this is a finding.

Fix Text (F-43177r856178_fix)

Configure the ASA to use an approved High Assurance CSfC cryptographic algorithm for remote access to a classified network. Step 1: Configure the IKE Phase 1. ASA2(config)# crypto ikev2 policy 2 ASA2(config-ikev2-policy)# encryption aes-256 ASA2(config-ikev2-policy)# integrity null ASA2(config-ikev2-policy)# group 20 ASA2(config-ikev2-policy)# prf sha384 ASA2(config-ikev2-policy)# exit Step 2: Configure the IPsec proposal in compliance with CNSA/CNSSP-15 and apply to a crypto map as shown in the example below. ASA2(config-ipsec-proposal)# protocol esp encryption aes-256 ASA2(config-ipsec-proposal)# exit ASA2(config)# crypto map CSNA_MAP 10 set ikev2 ipsec-proposal AES-256 ASA2(config)# end