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The TLS VPN Gateway that supports citizen- or business-facing network devices must prohibit client negotiation to SSL 2.0 or SSL 3.0.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-207259SRG-NET-000540-VPN-002350SV-207259r608988_ruleCCI-001453medium
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. This requirement applies to public-facing or external-facing devices such as TLS gateways (also known as SSL gateways), web servers, and web applications. Application protocols such as HTTPS and DNSSEC use TLS as the underlying security protocol and thus are in scope for this requirement. NIST SP 800-52 provides guidance. The minimum TLS version required by DoD is 1.2. However, devices and applications may allow client negotiation for systems supporting citizen- and business-facing applications. These devices may be configured to support TLS version 1.1 and 1.0 to enable interaction with citizens and businesses. These devices must not support SSL version 3.0 or earlier.
STIGDate
Virtual Private Network (VPN) Security Requirements Guide2025-09-10

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 (31) 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-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-3Device Identification and Authentication
1.00
IA-3(1)Cryptographic Bidirectional Authentication
1.00
IA-5(1)Password-based Authentication
1.00

+21 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-001453
1.00

Details

Check Text (C-207259r608988_chk)

Verify the TLS VPN Gateway that supports citizen- or business-facing network devices prohibits client negotiation to SSL 2.0 or SSL 3.0. If the TLS VPN Gateway that supports citizen- or business-facing network devices does not prohibit client negotiation to SSL 2.0 or SSL 3.0, this is a finding.

Fix Text (F-7519r378399_fix)

Configure the TLS VPN Gateway that supports citizen- or business-facing network devices to prohibit client negotiation to SSL 2.0 or SSL 3.0.