AWS CloudFormation Misconfiguration: EC2 Missing Customer-Managed Encryption Key

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Abstract

組態未將客戶自管加密金鑰指定給靜態資料。

Explanation

客戶自管金鑰未用於加密靜態資料。

依預設，如果啟用了加密，AWS 會使用 AWS 代管金鑰來加密靜態資料。客戶自管金鑰讓組織能夠使用自己選擇的加密金鑰來加密資料。這讓組織可以妥善控制和記錄加密過程。

因此，客戶自管金鑰通常會納入解決方案的一部分，可滿足包括但不限於以下需求：
- 敏感資料存取的稽核記錄
- 資料落地
- 取代、停用或銷毀金鑰

請注意，格式為 aws/service-name 的金鑰是預留給 AWS 代管金鑰使用。

References

[1] Amazon Web Services, Inc. or its affiliates AWS Key Management Service Developer Guide

[2] Standards Mapping - CIS Azure Kubernetes Service Benchmark 2.5

[3] Standards Mapping - CIS Microsoft Azure Foundations Benchmark partial

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 3

[5] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 3

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

[7] Standards Mapping - CIS Kubernetes Benchmark partial

[8] Standards Mapping - Common Weakness Enumeration CWE ID 311

[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001350, CCI-002475

[10] Standards Mapping - FIPS200 MP

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

[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-28 Protection of Information at Rest (P1)

[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-28 Protection of Information at Rest

[14] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure

[15] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures

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

[17] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.1.6 General Data Protection (L3)

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 3.5.1

[20] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.1 - Use of Cryptography

[21] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.1 - Use of Cryptography

[22] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography

[23] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001350 CAT II, APSC-DV-002340 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001350 CAT II, APSC-DV-002340 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001350 CAT II, APSC-DV-002340 CAT II

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