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.

Access Control: Azure

Abstract
Acessar uma Fila/Blob Azure com um valor controlado pelo usuário e sem controle de acesso adequado pode permitir que um invasor exiba/modifique/exclua Filas/Blobs não autorizados e as respectivas mensagens/conteúdo.
Explanation
Os erros de controle de acesso do Azure Cloud ocorrem quando:

1. Os dados entram em um programa por uma fonte não confiável.


2. Os dados são utilizados para exibir/modificar/excluir filas/blobs não autorizadas e as respectivas mensagens/conteúdo.
Exemplo 1: O código a seguir exclui a fila especificada e a respectivas mensagens.


    ...
    var queueName = queryStringData['name'];
    var queueSvc;
    queueSvc = azureStorage.createQueueService();
    ...
    queueSvc.deleteQueue(queueName, option, function(error, response){
      if(!error){
          // all the messages has been deleted
      }
    });
    ...
Exemplo 2: O código a seguir exclui o contêiner blob especificado e o respectivo conteúdo.


    ...
    var containerName = queryStringData['name'];
    var blobSvc;
    blobSvc = azureStorage.createBlobService();
    ...
    blobSvc.deleteContainer(containerName, function (error, response) {
      if (!error) {
          // all the content in the given container has been deleted
      }
    });
    ...


Embora o código no Example 1 e no Example 2 exclua o contêiner da fila/blob especificado e as respectivas mensagens/conteúdo que pertencem ao usuário/programa atual, um invasor pode excluir qualquer fila/blob dessa conta Azure. Como o código nesse exemplo não realiza nenhuma verificação para garantir que o usuário/programa tenha permissão para limpar a fila/blob solicitado, ele limpará a fila/blob, mesmo que ela não pertença ao usuário/programa atual.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 639
[2] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165
[4] Standards Mapping - FIPS200 AC
[5] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), IA-2 Identification and Authentication (Organizational Users) (P1), IA-11 Re-Authentication (P0), SC-3 Security Function Isolation (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, IA-2 Identification and Authentication (Organizational Users), SC-3 Security Function Isolation, SC-11 Trusted Path
[8] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.2 General Access Control Design (L1 L2 L3), 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3)
[9] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[10] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization
[11] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[12] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[13] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[14] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[15] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[16] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[27] 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
[28] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001520 CAT II, APSC-DV-001530 CAT II, APSC-DV-001540 CAT I, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001520 CAT II, APSC-DV-001530 CAT II, APSC-DV-001540 CAT I, APSC-DV-002360 CAT II
[50] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[51] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
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