GCP Terraform Misconfiguration: Compute Engine Missing Customer-Managed Encryption Key

Abstract

Compute Engine 实例不使用客户提供的加密密钥来保护磁盘加密密钥。

Explanation

默认情况下，Google Cloud Compute Engine 会对所有静态数据进行加密。客户提供的加密密钥 (CSEK)（如果指定）对数据加密密钥进行加密。除非提供正确的 CSEK，否则 Google 不会在 Compute Engine 实例上存储任何 CSEK，且无法访问受保护的数据。

示例 1：以下示例显示的 Terraform 配置为 Compute Engine 实例定义了一个永久磁盘。缺少 disk_encryption_key 块，因此没有 CSEK 来保护数据加密密钥。


resource "google_compute_disk" "compute-disk-demo" {
    name  = "test-disk"
    type  = "pd-ssd"
}

References

[1] HashiCorp google_compute_disk

[2] Google Cloud Persistent disk encryption

[3] Standards Mapping - CIS Google Cloud Computing Platform Benchmark Recommendation 4.7

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

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

[6] Standards Mapping - FIPS200 MP

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

[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-9 Protection of Audit Information (P1), SC-28 Protection of Information at Rest (P1)

[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-9 Protection of Audit Information, SC-28 Protection of Information at Rest

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

[11] 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)

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

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

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

[15] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

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

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

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

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

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

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

[23] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001350 CAT II, APSC-DV-002340 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001350 CAT II, APSC-DV-002340 CAT II

desc.structural.hcl.gcp_terraform_misconfiguration_compute_engine_missing_customer_managed_encryption_key