계: Input Validation and Representation

입력 검증 및 표현 문제는 메타 문자, 대체 인코딩 및 숫자 표현 때문에 발생합니다. 보안 문제는 입력을 신뢰하기 때문에 발생합니다. 문제로는 "Buffer Overflows", "Cross-Site Scripting" 공격, "SQL Injection", 그 외 여러 가지가 있습니다.

Handlebars Misconfiguration: Prototypes Allowed

JavaScript/TypeScript

Abstract

Handlebars 템플릿에서 프로토타입이 허용되어 프로토타입 오염 공격에 노출됩니다.

Explanation

Handlebars 템플릿은 응용 프로그램을 Prototype Pollution 공격에 취약하게 만들기 때문에 개체의 프로토타입에 액세스할 수 없습니다.

프로토타입 오염 공격은 악의적인 사용자가 개체 프로토타입의 함수나 속성을 제어할 수 있을 때 발생합니다. 템플릿으로 전달되는 개체의 프로토타입을 제어하면 Dynamic Code Evaluation, Cross-Site Scripting, 원격 코드 실행을 비롯한 많은 취약점에 노출되게 됩니다.

예제 1: Handlebars 템플릿을 구성하는 다음 예제에서는 기본적으로 프로토타입 메서드와 특수 __defineGetter__ 함수가 허용됩니다.


let template2 = Handlebars.compile('{{foo}}')
console.log(template2({ foo: argument }, {
    allowProtoMethodsByDefault: true,
    allowedProtoMethods: {
        __defineGetter__: true
    }
}))

References

[1] Handlebars Runtime Options: Options to Control Prototype Access Handlebars

[2] Mahmoud Gamal Handlebars template injection and RCE in a Shopify app

[3] Standards Mapping - CIS Azure Kubernetes Service Benchmark 3.5

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 4

[5] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1

[6] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality

[7] Standards Mapping - CIS Kubernetes Benchmark complete

[8] Standards Mapping - Common Weakness Enumeration CWE ID 554

[9] Standards Mapping - Common Weakness Enumeration Top 25 2019 [3] CWE ID 020

[10] Standards Mapping - Common Weakness Enumeration Top 25 2020 [3] CWE ID 020

[11] Standards Mapping - Common Weakness Enumeration Top 25 2021 [4] CWE ID 020

[12] Standards Mapping - Common Weakness Enumeration Top 25 2022 [4] CWE ID 020

[13] Standards Mapping - Common Weakness Enumeration Top 25 2023 [6] CWE ID 020

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

[15] Standards Mapping - FIPS200 CM

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

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

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

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

[20] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

[21] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[22] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[23] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[24] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.1.3 Input Validation Requirements (L1 L2 L3), 5.1.4 Input Validation Requirements (L1 L2 L3), 14.1.3 Build (L2 L3)

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

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

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

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

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

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

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

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

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

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

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

[36] 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

[37] 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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)

desc.structural.javascript.handlebars_misconfiguration_prototypes_allowed