Reino: Security Features

La seguridad de un software no es un software de seguridad. Nos preocupamos de cuestiones como la autenticación, el control de acceso, la confidencialidad, la criptografía y la gestión de privilegios.

ASP.NET Misconfiguration: Event Validation Disabled

C#/VB.NET/ASP.NET

Abstract

Deshabilitar la validación de eventos de ASP.NET puede permitir a los atacantes enviar solicitudes postback no autorizadas o maliciosas.

Explanation

La validación de eventos es una característica de seguridad de ASP.NET que valida los controles de eventos en las solicitudes postback para garantizar que los controles sean los mismos que cuando se representaron durante la carga inicial de la página. Cuando esta característica está deshabilitada, los atacantes pueden llevar a cabo ataques de falsificación de solicitud entre sitios con controles de eventos manipulados, lo que lleva a accesos no autorizados, ataques de Cross-Site Scripting, etc.

Ejemplo 1: La siguiente configuración de la aplicación web deshabilita la validación de eventos.


...
<system.web>
    ...
    <pages enableEventValidation="false">
    ...
    </pages>
</system.web>

Ejemplo 2: La siguiente directiva de página de servidor deshabilita la validación de eventos.


<%@ Page ... EnableEventValidation="false" %>

References

[1] Page.EnableEventValidation Property Microsoft

[2] Web Development Best Practices Microsoft

[3] Standards Mapping - Common Weakness Enumeration CWE ID 113

[4] Standards Mapping - Common Weakness Enumeration Top 25 2024 [12] CWE ID 020

[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754

[6] Standards Mapping - FIPS200 CM

[7] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data

[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)

[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation

[10] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[11] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls

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

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

[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 - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective C.3.1 - Web Software Attack Mitigation

[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I

[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I

[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I

[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I

[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I

[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I

[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I

[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I

[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I

[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I

[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I

[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I

[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002560 CAT I

[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002560 CAT I

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

desc.config.dotnet.asp_dotnet_misconfiguration_event_validation_disabled