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The Cisco ASA remote access VPN server must be configured to use TLS 1.2 or higher to protect the confidentiality of remote access connections.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-239975CASA-VN-000550SV-239975r666331_ruleCCI-000068high
Description
Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and unknown attacks that exploit vulnerabilities in this protocol. NIST SP 800-52 provides guidance for client negotiation on either DoD-only or public-facing servers.
STIGDate
Cisco ASA VPN Security Technical Implementation Guide2024-08-22

Related Frameworks

1 mapping across 4 frameworks
SCF0 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.

NET-14.2Protection of Confidentiality / Integrity Using Encryption
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (33) 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(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-3Access Enforcement
1.00
CM-6Configuration Settings
1.00
CM-6(1)Automated Management, Application, and Verification
1.00
CM-7Least Functionality
1.00
CM-7(1)Periodic Review
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-3Device Identification and Authentication
1.00

+23 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.

3.1.13
1.00
CCI1 mapping
CCI-000068
1.00

Details

Check Text (C-239975r666331_chk)

Verify the TLS ASA is configured to use TLS 1.2 or higher as shown in the example below. ssl server-version tlsv1.2 dtlsv1.2 Note: ASA supports TLS version 1.2 starting from software version 9.3.1 for secure message transmission for Clientless SSL VPN and AnyConnect VPN. If the ASA is not configured to use TLS 1.2 or higher to protect the confidentiality of sensitive data during transmission, this is a finding.

Fix Text (F-43167r666330_fix)

Configure the ASA to use TLS 1.2 or higher as shown in the example below. ASA1(config)# ssl server-version tlsv1.2 dtlsv1.2