Reino: Security Features

Segurança de software não é o mesmo que software de segurança. Aqui, estamos interessados em tópicos como autenticação, controle de acesso, confidencialidade, criptografia e gestão de privilégios.

AWS CloudFormation Misconfiguration: Improper EC2 Network Access Control

Abstract
O modelo define um SecurityGroup com restrições de acesso insuficientes.
Explanation
As configurações de acesso livre expõem os sistemas desnecessariamente e ampliam a superfície de ataque de uma organização. Os serviços abertos à interação com o público estão sujeitos a varreduras e investigações quase contínuas por entidades mal-intencionadas.

Isso é especialmente problemático quando um exploit de dia zero para um serviço exposto é descoberto e publicado (por exemplo, Heartbleed). Os invasores podem perseguir e pesquisar ativamente sistemas não corrigidos e expostos para explorá-los.


"PSQLSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"VpcId": {
"Ref": "VpcId"
},
"GroupDescription": "Enable PSQL access via port 5432 to world",
"SecurityGroupIngress": [
{
"CidrIp": "0.0.0.0/0",
"FromPort": 5432,
"IpProtocol": "tcp",
"ToPort": 5432
}
]
}
References
[1] Amazon Web Services AWS Documentation: AWS::EC2::SecurityGroupIngress
[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 CSO: What is the Heartbleed bug, how does it work and how was it fixed?
[5] Standards Mapping - CIS Azure Kubernetes Service Benchmark 2
[6] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2
[7] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1
[8] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality
[9] Standards Mapping - Common Weakness Enumeration CWE ID 749
[10] Standards Mapping - Common Weakness Enumeration Top 25 2020 [18] CWE ID 522
[11] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[12] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165
[14] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[15] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1)
[16] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege
[17] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[18] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[19] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[20] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[21] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[22] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[23] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[24] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3)
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 1.4.2
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[35] 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
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 863
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001410 CAT II, APSC-DV-001520 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[61] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.json.aws_cloudformation_misconfiguration_improper_ec2_network_access_control.base
Abstract
O modelo define um SecurityGroup com restrições de acesso insuficientes.
Explanation
As configurações de acesso livre expõem os sistemas desnecessariamente e ampliam a superfície de ataque de uma organização. Os serviços abertos à interação com o público estão sujeitos a varreduras e investigações quase contínuas por entidades mal-intencionadas.

Isso é especialmente problemático quando um exploit de dia zero para um serviço exposto é descoberto e publicado (por exemplo, Heartbleed). Os invasores podem perseguir e pesquisar ativamente sistemas não corrigidos e expostos para explorá-los.


PSQLSecurityGroup:
Type: 'AWS::EC2::SecurityGroup'
Properties:
VpcId: !Ref VpcId
GroupDescription: Enable PSQL access via port 5432 to world
SecurityGroupIngress:
- CidrIp: 0.0.0.0/0
FromPort: 5432
IpProtocol: tcp
ToPort: 5432
References
[1] Amazon Web Services AWS Documentation: AWS::EC2::SecurityGroupIngress
[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 CSO: What is the Heartbleed bug, how does it work and how was it fixed?
[5] Standards Mapping - CIS Azure Kubernetes Service Benchmark 2
[6] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2
[7] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1
[8] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality
[9] Standards Mapping - Common Weakness Enumeration CWE ID 749
[10] Standards Mapping - Common Weakness Enumeration Top 25 2020 [18] CWE ID 522
[11] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[12] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165
[14] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[15] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-6 Least Privilege (P1)
[16] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-6 Least Privilege
[17] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[18] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[19] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[20] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[21] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[22] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[23] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[24] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3)
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 1.4.2
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[35] 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
[36] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285
[37] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 863
[38] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001410 CAT II, APSC-DV-001520 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[61] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.yaml.aws_cloudformation_misconfiguration_improper_ec2_network_access_control.base