Reino: Encapsulation

La encapsulación consiste en crear límites fuertes. En un explorador web esto puede suponer la seguridad de que tu codificación móvil no se vea comprometido por otro código móvil. En el servidor puede significar la diferenciación entre los datos validados y los que no lo están, entre los datos de un usuario y los de otro, o entre los diferentes usuarios, los datos que pueden ver y los que no.

HTML5: Overly Permissive Message Posting Policy

Abstract
El programa devuelve un mensaje entre documentos con un origen de destino demasiado permisivo.
Explanation
Una de las nuevas características de HTML5 son los mensajes entre documentos. Esta función permite que las secuencias devuelvan mensajes en otras ventanas. La API correspondiente permite al usuario especificar el origen de la ventana de destino. No obstante, se debe prestar especial atención a la hora de especificar el origen de destino, dado que un origen de destino demasiado permisivo hará posible que un script malicioso pueda comunicarse con la ventana en cuestión de forma inapropiada, lo que permitiría la suplantación de identidad, el robo de datos, la retransmisión y otras formas de ataque.

Ejemplo 1: el siguiente ejemplo utiliza un carácter comodín para especificar mediante programación el origen de destino del mensaje que se va a enviar.


WebMessage message = new WebMessage(WEBVIEW_MESSAGE);
webview.postWebMessage(message, Uri.parse("*"));


Utilizando el * como el valor del origen de destino, se indica que la secuencia envía un mensaje a una ventana independientemente de su origen.
References
[1] Michael Schmidt HTML5 Web Security
[2] Philippe De Ryck, Lieven Desmet, Pieter Philippaerts, and Frank Piessens A Security Analysis of Next Generation Web Standards
[3] Standards Mapping - Common Weakness Enumeration CWE ID 942
[4] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414
[6] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 14.4.6 HTTP Security Headers Requirements (L1 L2 L3), 14.5.3 Validate HTTP Request Header Requirements (L1 L2 L3)
[10] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[11] Standards Mapping - OWASP Mobile 2024 M8 Security Misconfiguration
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1
[13] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[14] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[23] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[25] 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
[26] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
desc.controlflow.java.html5_overly_permissive_message_posting_policy
Abstract
El programa devuelve un mensaje entre documentos con un origen de destino demasiado permisivo.
Explanation
Una de las nuevas características de HTML5 son los mensajes entre documentos. Esta función permite que las secuencias devuelvan mensajes en otras ventanas. La API correspondiente permite al usuario especificar el origen de la ventana de destino. No obstante, se debe prestar especial atención a la hora de especificar el origen de destino, dado que un origen de destino demasiado permisivo hará posible que un script malicioso pueda comunicarse con la ventana en cuestión de forma inapropiada, lo que permitiría la suplantación de identidad, el robo de datos, la retransmisión y otras formas de ataque.

Ejemplo 1: el siguiente ejemplo utiliza un carácter comodín para especificar mediante programación el origen de destino del mensaje que se va a enviar.


o.contentWindow.postMessage(message, '*');


Utilizando el * como el valor del origen de destino, se indica que la secuencia envía un mensaje a una ventana independientemente de su origen.
References
[1] Michael Schmidt HTML5 Web Security
[2] Philippe De Ryck, Lieven Desmet, Pieter Philippaerts, and Frank Piessens A Security Analysis of Next Generation Web Standards
[3] Standards Mapping - Common Weakness Enumeration CWE ID 942
[4] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414
[6] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 14.4.6 HTTP Security Headers Requirements (L1 L2 L3), 14.5.3 Validate HTTP Request Header Requirements (L1 L2 L3)
[10] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[11] Standards Mapping - OWASP Mobile 2024 M8 Security Misconfiguration
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1
[13] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[14] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[15] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[23] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[25] 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
[26] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
desc.structural.javascript.html5_overly_permissive_message_posting_policy