GCP Terraform Misconfiguration: Overly Permissive IAM Role

Abstract

Terraform 組態將服務帳戶角色指派給 IAM 使用者。

Explanation

權限管理不善會增加未經授權存取或資料遭到修改的風險，也會減弱服務可用性。

服務帳戶是應用程式或虛擬機器 (而非人) 所使用的特殊 Google 帳戶，其使用敏感權限來執行自動化流程或代表一般使用者發出 API 要求。服務帳戶應加以審慎管理、控制及稽核，以便可以獲得信任。將服務帳戶角色指派給通常代表一個人的 IAM 使用者，將會削弱安全控制機制。

References

[1] HashiCorp IAM policy for projects

[2] Google Cloud Service accounts

[3] Standards Mapping - CIS Google Cloud Computing Platform Benchmark Recommendation 1.6

[4] Standards Mapping - Common Weakness Enumeration CWE ID 285

[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000381, CCI-002233, CCI-002235

[6] Standards Mapping - FIPS200 AC

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

[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1), CM-7 Least Functionality (P1)

[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege, CM-7 Least Functionality

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

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

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

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

[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 7.1.2

[15] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 7.2.2

[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 7.2.2

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

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

[19] 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

[20] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

[21] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

[22] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

[23] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000500 CAT II, APSC-DV-000510 CAT I, APSC-DV-001500 CAT II

desc.structural.hcl.gcp_terraform_misconfiguration_overly_permissive_iam_role