Reino: Input Validation and Representation

Los problemas de validación y representación de entradas están causados por metacaracteres, codificaciones alternativas y representaciones numéricas. Los problemas de seguridad surgen de entradas en las que se confía. Estos problemas incluyen: «desbordamientos de búfer», ataques de «scripts de sitios», "SQL injection" y muchas otras acciones.

NoSQL Injection: Cosmos DB

C#/VB.NET/ASP.NET

Abstract

La creación de una consulta de Azure Cosmos DB dinámica con información que procede de un origen que no es de confianza podría permitir que un atacante modificara la acción de la consulta.

Explanation

La inyección de código NoSQL en Cosmos DB se produce cuando:

1. Los datos se introducen en un programa desde un origen que no es de confianza.

2. Los datos se utilizan para crear una consulta de Cosmos DB de forma dinámica.

Ejemplo 1: El código siguiente crea y ejecuta dinámicamente una consulta de Cosmos DB que busca un correo electrónico con un identificador específico.


...
    String userName = User.Identity.Name;
    String emailId = request["emailId"];
    var client = account.CreateCloudTableClient();
    var table = client.GetTableReference("Employee");
    var query = table.CreateQuery<EmployeeEntity>().Where("user == '" + userName + "' AND emailId == '" + emailId "'");
    var results = table.ExecuteQuery(query);
...

La consulta intenta ejecutar el código siguiente:


    user == "<userName>" && emailId == "<emailId>"

Sin embargo, dado que la consulta se crea dinámicamente mediante la concatenación de una cadena de consulta constante y la entrada del usuario, solo funciona correctamente si emailId no contiene un carácter de comilla simple. Si un atacante con el nombre de usuario wiley introduce la cadena "123' || '4' != '5" para emailId, la consulta se convertirá en lo siguiente:


    user == 'wiley' && emailId == '123' || '4' != '5'

La adición de la condición || '4' != '5' hace que la cláusula where siempre se evalúe como true, por lo que la consulta devuelve todas las entradas almacenadas en la colección emails, independientemente del propietario del correo electrónico.

References

[1] Testing for NoSQL injection OWASP

[2] Standards Mapping - Common Weakness Enumeration CWE ID 89, CWE ID 943

[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [6] CWE ID 089

[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [6] CWE ID 089

[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [6] CWE ID 089

[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [3] CWE ID 089

[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [3] CWE ID 089

[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [3] CWE ID 089

[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001310, CCI-002754

[10] Standards Mapping - FIPS200 SI

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

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

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

[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.3.4 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.3.5 Output Encoding and Injection Prevention Requirements (L1 L2 L3)

[15] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection

[16] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation

[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4

[18] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws

[19] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws

[20] Standards Mapping - OWASP Top 10 2010 A1 Injection

[21] Standards Mapping - OWASP Top 10 2013 A1 Injection

[22] Standards Mapping - OWASP Top 10 2017 A1 Injection

[23] Standards Mapping - OWASP Top 10 2021 A03 Injection

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2

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

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

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

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

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

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

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

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

[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation

[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation, Control Objective C.3.2 - Web Software Attack Mitigation

[36] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 089

[37] Standards Mapping - SANS Top 25 2010 Insecure Interaction - CWE ID 089

[38] Standards Mapping - SANS Top 25 2011 Insecure Interaction - CWE ID 089

[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002540 CAT I, APSC-DV-002560 CAT I

[61] Standards Mapping - Web Application Security Consortium Version 2.00 SQL Injection (WASC-19)

[62] Standards Mapping - Web Application Security Consortium 24 + 2 SQL Injection

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