界: Input Validation and Representation

输入验证与表示问题是由元字符、交替编码和数字表示引起的。安全问题源于信任输入。这些问题包括：“Buffer Overflows”、“Cross-Site Scripting”攻击、“SQL Injection”等其他问题。

Fragment Injection

Java/JSP

Abstract

扩展 PreferenceActivity 的 Android 活动无法限制其可实例化的片段类。

Explanation

恶意应用程序可调用不安全的 PreferenceActivity 并且为其提供 :android:show_fragment Intent 额外项，使其加载任意类。恶意应用程序可使 PreferenceActivity 加载易受攻击应用程序的任意 Fragment，它在非导出活动内可正常加载，从而将应用程序暴露给攻击者。

示例 1： 以下代码无法实现用于验证是否仅加载预期片段的检查。


@Override
public static boolean isFragmentValid(Fragment paramFragment)
{
    return true;
}

References

[1] Roee Hay A New Vulnerability in the Android Framework: Fragment Injection

[2] Standards Mapping - Common Weakness Enumeration CWE ID 470

[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754

[4] Standards Mapping - FIPS200 SI

[5] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation

[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)

[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation

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

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

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

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

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

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

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

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

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

[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8

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

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

[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control

[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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

[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I

[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I

[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I

[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I

[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I

[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I

[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I

[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I

[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I

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

desc.structural.java.fragment_injection