Reino: API Abuse

Uma API é um contrato entre quem chama e o que se chama. As formas mais comuns de abuso de API ocorrem quando o responsável pela chamada não respeita sua parte do contrato. Por exemplo, se um programa não chama chdir() após chamar chroot(), ele viola o contrato que especifica como alterar o diretório raiz ativo de forma segura. Outro bom exemplo de abuso de biblioteca é esperar que o elemento chamado retorne informações confiáveis de DNS ao responsável pela chamada. Nesse caso, o responsável pela chamada abusa a API do elemento chamado ao fazer certas suposições sobre seu comportamento (isto é, que o valor de retorno pode ser usado para fins de autenticação). A outra parte também pode violar o contrato entre quem chama e o que se chama. Por exemplo, se um programador definir SecureRandom como subclasse e retornar um valor não aleatório, o contrato será violado.

ASP.NET Middleware Out of Order: Default Cookie Configuration

C#/VB.NET/ASP.NET

Abstract

O aplicativo especifica o middleware de diretiva de cookie ASP.NET incorretamente.

Explanation

O middleware ASP.NET Core que não é adicionado ao pipeline de middleware na ordem correta não funcionará conforme o esperado, deixando um aplicativo aberto a vários problemas de segurança.

Exemplo 1: O método UseCookiePolicy() adiciona o middleware de política de cookie ao pipeline de middleware, permitindo políticas de cookie personalizadas. Quando especificado na ordem errada, como mostrado, qualquer política de cookie indicada pelo programador será ignorada.


...
var builder = WebApplication.CreateBuilder(...);
var app = builder.Build(...);
app.UseStaticFiles();
app.UseRouting();
app.UseSession();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
    ...
}

app.UseCookiePolicy();
...

References

[1] Rick Anderson, Steve Smith ASP.NET Core Middleware Microsoft

[2] Standards Mapping - CIS Azure Kubernetes Service Benchmark 3

[3] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2

[4] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1

[5] Standards Mapping - CIS Google Kubernetes Engine Benchmark normal

[6] Standards Mapping - Common Weakness Enumeration CWE ID 696, CWE ID 1188, CWE ID 565

[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002418, CCI-002420, CCI-002421, CCI-002422

[8] Standards Mapping - FIPS200 MP, SC

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

[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-6 Configuration Settings (P2)

[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-6 Configuration Settings

[12] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management

[13] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications

[14] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

[15] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[16] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[17] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[18] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.1 General Access Control Design (L1 L2 L3)

[19] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage

[20] Standards Mapping - OWASP Mobile 2024 M8 Security Misconfiguration

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography

[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective 2.3 - Secure Defaults

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective 2.3 - Secure Defaults, Control Objective C.4.1 - Web Software Communications

[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3210.1 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3210.1 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3210.1 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3210.1 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3210.1 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3210.1 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3210.1 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[53] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)

[54] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authentication

desc.controlflow.dotnet.asp_dotnet_middleware_out_of_order_default_cookie_configuration