Reino: Input Validation and Representation

Problemas de validação e representação da entrada são causados por metacaracteres, codificações alternativas e representações numéricas. Confiar na entrada resulta em problemas de segurança. Os problemas incluem: “Buffer Overflows”, ataques de “Cross-Site Scripting”, “SQL Injection”, entre outros.

Possible Variable Overwrite

ColdFusion

Abstract

O programa invoca uma função que pode sobrescrever variáveis e abrir as portas para invasores.

Explanation

Funções que podem sobrescrever variáveis já inicializadas podem permitir que um invasor influencie a execução do código que depende das variáveis sobrescritas.
pode substituir variáveis.

Exemplo 1: Se um invasor fornecer um valor mal-intencionado para varName no seguinte segmento de código ColdFusion, a chamada para SetVariable() poderá substituir qualquer variável arbitrária, inclusive #first#. Nesse caso, se um valor mal-intencionado que contém JavaScript sobrescrever #first#, o programa ficará vulnerável à criação de scripts entre sites.


<cfset first = "User">
<cfscript>
SetVariable(url.varName, url.varValue);
</cfscript>
<cfoutput>
#first#
</cfoutput>

References

[1] Standards Mapping - Common Weakness Enumeration CWE ID 473

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

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

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

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

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

[7] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6

[8] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6

[9] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6

[10] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6

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

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

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

[14] 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

[15] 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

[16] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II

[17] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II

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