Kingdom: Environment

This section includes everything that is outside of the source code but is still critical to the security of the product that is being created. Because the issues covered by this kingdom are not directly related to source code, we separated it from the rest of the kingdoms.

GCP Terraform Misconfiguration: Permissive Firewall

Abstract

A Terraform configuration defines a VPC Firewall rule that allows incoming connections to a security-sensitive port.

Explanation

Failure to block unwanted network traffic expands a cloud service's attack surface. Services open to interaction with the public are subjected to almost continuous scanning and probing by malicious entities.

References

[1] HashiCorp google_compute_firewall

[2] Google Cloud VPC firewall rules overview

[3] Standards Mapping - CIS Azure Kubernetes Service Benchmark 4

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 4

[5] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1

[6] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality

[7] Standards Mapping - CIS Kubernetes Benchmark partial

[8] Standards Mapping - Common Weakness Enumeration CWE ID 749

[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165

[10] Standards Mapping - FIPS200 AC

[11] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation

[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1)

[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege

[14] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control

[15] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control

[16] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[17] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3)

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 1.4.2

[20] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control

[21] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control

[22] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls

[23] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

desc.structural.hcl.gcp_terraform_misconfiguration_permissive_firewall