界: Security Features

ソフトウェアのセキュリティは、セキュリティ ソフトウェアではありません。ここでは、認証、アクセス制御、機密性、暗号化、権限管理などのトピックについて説明します。

AWS Ansible Misconfiguration: Improper EC2 Network Access Control

Abstract
Ansible タスクは、過度に広いアクセス許可を持つ AWS セキュリティ グループを定義します。
Explanation
アクセス設定が緩いと、システムが不必要に公開され、組織の攻撃対象領域が広がります。一般に公開されているサービスは、通常、悪意のあるエンティティによるほぼ継続的なスキャンとプロービングの対象になります。

これは、公開されたサービスのゼロデイ エクスプロイトが発見され、公表された場合 (Heartbleed など) に、特に問題になります。攻撃者は、パッチが適用されていない、公開されたシステムを積極的に追跡、検索して、それを悪用できます。

例 1: 次の Ansible タスクは、世界 (0.0.0.0/0) に対して TCP ポート 22 を開く AWS セキュリティ グループを定義します。SSH サーバーは通常、受信接続リクエストに応答します。

- name: Task to open SSH port
  amazon.aws.ec2_group:
    name: demo_security_group
    description: Open the ssh port to the world
    state: present
    vpc_id: 123456
    region: us-west-1
    rules:
    - proto: tcp
        ports: 22
        cidr_ip: 0.0.0.0/0
References
[1] Ansible project contributors amazon.aws.ec2_group – maintain an ec2 VPC security group
[2] Jesse Lepich and Michael Ingoldby AWS Security Blog: How to continuously audit and limit security groups with AWS Firewall Manager
[3] Jeffrey Lyon AWS Security Blog: How to Help Prepare for DDoS Attacks by Reducing Your Attack Surface
[4] Josh Fruhlinger CSOOnline: The Heartbleed bug: How a flaw in OpenSSL caused a security crisis
[5] Standards Mapping - CIS Amazon Web Services Foundations Benchmark Recommendation 5.1
[6] Standards Mapping - Common Weakness Enumeration CWE ID 749
[7] Standards Mapping - Common Weakness Enumeration Top 25 2020 [18] CWE ID 522
[8] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[9] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002038, CCI-002165
[11] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), AC-6 Least Privilege (P1), CM-5 Access Restrictions for Change (P1), IA-11 Re-Authentication (P0), SC-3 Security Function Isolation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, AC-6 Least Privilege, CM-5 Access Restrictions for Change, SC-3 Security Function Isolation, SC-11 Trusted Path
[14] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3)
[16] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[17] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[18] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[19] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[20] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[21] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 1.4.2
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4, Requirement 1.4.2
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285
[35] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 863
[36] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001410 CAT II, APSC-DV-001520 CAT II, APSC-DV-002360 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001410 CAT II, APSC-DV-001520 CAT II, APSC-DV-002360 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[60] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.aws_ansible_misconfiguration_improper_ec2_network_access_control.base