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.

Permission Manipulation

Abstract
Permitir que a entrada do usuário altere permissões diretamente pode deixar que um invasor acesse recursos do sistema que, de outra forma, estariam protegidos.
Explanation
Os erros de manipulação de permissão ocorrem quando um invasor é capaz de modificar um valor usado na determinação de permissões em um aplicativo.

Exemplo 1: O código a seguir usa a entrada de um arquivo para determinar as FileIOPermissions necessárias no aplicativo.


...
String permissionsXml = GetPermissionsFromXmlFile();
FileIOPermission perm = new FileIOPermission(PermissionState.None);
perm.FromXml(permissionsXml);
perm.Demand();
...


Nesse cenário, se o usuário puder controlar o arquivo XML usado para recuperar os dados, ele controlará quais permissões podem ser exigidas pelo sistema.
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 264, CWE ID 732
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [15] CWE ID 732
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [16] CWE ID 732
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [22] CWE ID 732
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[6] Standards Mapping - FIPS200 AC
[7] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[10] Standards Mapping - OWASP API 2023 API3 Broken Object Property Level Authorization
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.3.3 Other Access Control Considerations (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), 7.3.3 Log Protection Requirements (L2 L3)
[12] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[13] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[14] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[15] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 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 - SANS Top 25 2009 Porous Defenses - CWE ID 732
[29] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 732
[30] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 732
[31] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[46] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
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