STIGQter: STIG Summary: Cisco ASA VPN Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 24 Oct 2024:

The Cisco ASA must be configured to validate certificates via a trustpoint that identifies a DoD or DoD-approved certificate authority.

DISA Rule

SV-239949r666253_rule

Vulnerability Number

V-239949

Group Title

SRG-NET-000164-VPN-000560

Rule Version

CASA-VN-000120

Severity

CAT II

CCI(s)

• CCI-000185 - For public key-based authentication, validate certificates by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information.

Weight

10

Fix Recommendation

Ensure that certificate requests are only sent to DoD or DoD-approved service providers.

Check Contents

If PKI certificates are not implemented on the ASA, this requirement is not applicable.

Step 1: Review the ASA configuration to determine if a CA trust point has been configured as shown in the example below.

crypto ca trustpoint CA_X

Step 2: Verify the CA is a DoD or DoD-approved service provider by entering the following command: show crypto ca certificates

The output will list the following information for each certificate:

Associated Trustpoints: (will map to a configured trustpoint from Step 1)
Common Name (CN) of the issuer
Organization Unit (OU) of the issuer
Organization (O) of the issuer
Validity Date

If the ASA is not configured to obtain its public key certificates from a DoD or DoD-approved service provider, this is a finding.

Vulnerability Number

V-239949

Documentable

False

Rule Version

CASA-VN-000120

Severity Override Guidance

If PKI certificates are not implemented on the ASA, this requirement is not applicable.

Step 1: Review the ASA configuration to determine if a CA trust point has been configured as shown in the example below.

crypto ca trustpoint CA_X

Step 2: Verify the CA is a DoD or DoD-approved service provider by entering the following command: show crypto ca certificates

The output will list the following information for each certificate:

Associated Trustpoints: (will map to a configured trustpoint from Step 1)
Common Name (CN) of the issuer
Organization Unit (OU) of the issuer
Organization (O) of the issuer
Validity Date

If the ASA is not configured to obtain its public key certificates from a DoD or DoD-approved service provider, this is a finding.

Check Content Reference

M

Target Key

5344