The TLS VPN Gateway that supports Government-only services must prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-207258 | SRG-NET-000530-VPN-002340 | SV-207258r608988_rule | CCI-001453 | medium |
| 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 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 for client negotiation on either DoD-only or public-facing servers. | ||||
| STIG | Date | |||
| Virtual Private Network (VPN) Security Requirements Guide | 2024-12-19 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-17(2)
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.13
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-001453
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-207258r608988_chk)
Verify the TLS VPN Gateway that supports Government-only services prohibits client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0.
If the TLS VPN Gateway that supports Government-only services does not prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0, this is a finding.
Fix Text (F-7518r378396_fix)
Configure the TLS VPN Gateway that supports Government-only services to prohibit client negotiation to TLS 1.1, TLS 1.0, SSL 2.0, or SSL 3.0.