compliance.tf

Function apps should require HTTPS for all access

Function apps should only be accessible over HTTPS. Use of HTTPS ensures server/service authentication and protects data in transit from network layer eavesdropping attacks. By default, clients can connect to function endpoints by using both HTTP or HTTPS.

What this control checks

Function apps must require HTTPS for all access

Framework mappings

The clauses this control is mapped to in each framework.

NIST SP 800-53 Rev 5

  • SC-8(1): Cryptographic Protection
  • Transmission Confidentiality And Integrity (SC-8)

NIST Cybersecurity Framework v2.0

  • GV.OC-03: Legal, regulatory, and contractual requirements regarding cybersecurity -- including privacy and civil liberties obligations -- are understood and managed.
  • PR.DS-02

NIST SP 800-171 Rev 2

  • 3.13.8: Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission unless otherwise protected by alternative physical safeguards.

RBI IT Framework for NBFCs

  • 3.1.h Public Key Infrastructure (PKI)

FedRAMP High

  • SC-8 Transmission Confidentiality And Integrity
  • SC-8(1) Cryptographic Or Alternate Physical Protection

HIPAA HITRUST v9.2

  • 0809.01n2Organizational.1234-01.n 01.04 Network Access Control
  • 0810.01n2Organizational.5-01.n 01.04 Network Access Control
  • 0811.01n2Organizational.6-01.n 01.04 Network Access Control
  • 0812.01n2Organizational.8-01.n 01.04 Network Access Control
  • 0814.01n1Organizational.12-01.n 01.04 Network Access Control
1 more clause
  • 0949.09y2Organizational.5-09.y 09.09 Electronic Commerce Services

PCI DSS v3.2.1

  • 6.5.3: Insecure cryptographic storage.
  • Render PAN unreadable anywhere it is stored (including on portable digital media, backup media, and in logs) by using approaches like one-way hashes based on strong cryptography, truncation etc
  • Use strong cryptography and security protocols to safeguard sensitive cardholder data during transmission over open, public networks

Tool mappings

Use these identifiers to cross-reference this control across tools, reports, and evidence.

  • Compliance.tf Control: appservice_function_app_only_https_accessible
  • Checkov Check: CKV_AZURE_70
  • Powerpipe Control: azure_compliance.control.appservice_function_app_only_https_accessible
  • Prowler Check: app_function_ensure_http_is_redirected_to_https
  • Azure Policy Definitions: 6d555dd1-86f2-4f1c-8ed7-5abae7c6cbab, a096cbd0-4693-432f-9374-682f485f23f3
  • Trivy Check: AZU-0004

Last reviewed: 2026-10-11

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