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.
Bean Manipulation
Abstract
공격자가 시스템 무결성을 손상시킬 수 있는 Arbitrary Bean 속성을 설정할 수 있습니다.
Explanation
Bean을 채우기 전에 Bean 속성 이름과 값을 확인해야 합니다. Bean 채우기 기능을 통해 개발자가 Bean 속성 또는 Nested 속성을 설정할 수 있습니다. 공격자는 이 기능을 활용하여 시스템 속성을 오버라이드하고 임의의 코드를 실행할 수 있는 특수 Bean 속성(예:
예제: 다음 코드는 속성 이름이나 값에 대한 적합한 확인 없이 사용자 제어 Bean 속성을 설정합니다.
class.classLoader)에 액세스할 수 있게 됩니다.예제: 다음 코드는 속성 이름이나 값에 대한 적합한 확인 없이 사용자 제어 Bean 속성을 설정합니다.
String prop = request.getParameter('prop');
String value = request.getParameter('value');
HashMap properties = new HashMap();
properties.put(prop, value);
BeanUtils.populate(user, properties);
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 15
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754
[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 API 2023 API3 Broken Object Property Level Authorization
[7] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[8] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[9] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[10] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[19] 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
[20] 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
[21] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[22] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[42] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.bean_manipulation