界: Security Features

ソフトウェアのセキュリティは、セキュリティソフトウェアではありません。ここでは、認証、アクセス制御、機密性、暗号化、権限管理などのトピックについて説明します。

Access Control: Case-Insensitive Package Name Comparison

Java/JSP

Abstract

アプリケーションは、Android パッケージとユーザー制御値を、攻撃者がパッケージ名に基づいてアクセス制御を回避できるようにする大文字と小文字を区別しない方法で比較します。

Explanation

Android では、パッケージ名は大文字と小文字が区別されているため、大文字と小文字を区別する方法で比較する必要があります。悪意のあるアプリケーションは、アクセス制御をすり抜けるられるように、さまざまな大文字と小文字を含む同じようなパッケージを共有する場合があります。

例 1: 次のコードは、アクセス制御のために安全でない文字列比較を実行します。


public boolean isTrusted(String paramString) {
 if (this._applicationContext.getPackageName().equalsIgnoreCase(paramString)) {
 return true;
}

References

[1] Standards Mapping - CIS Azure Kubernetes Service Benchmark 2

[2] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2

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

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

[5] Standards Mapping - CIS Kubernetes Benchmark complete

[6] Standards Mapping - Common Weakness Enumeration CWE ID 285

[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863

[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165

[9] Standards Mapping - FIPS200 AC

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

[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)

[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement

[13] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control

[14] Standards Mapping - OWASP Top 10 2007 A10 Failure to Restrict URL Access

[15] Standards Mapping - OWASP Top 10 2010 A8 Failure to Restrict URL Access

[16] Standards Mapping - OWASP Top 10 2013 A7 Missing Function Level Access Control

[17] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control

[18] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control

[19] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3)

[20] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication

[21] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization

[22] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2, Requirement 7.2

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.5, Requirement 6.5.10, Requirement 7.2

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8, Requirement 7.2

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8, Requirement 7.2

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8, Requirement 7.2

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8, Requirement 7.2

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8, Requirement 7.2

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 7.3.1

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control

[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control

[33] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls

[34] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 285

[35] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 285

[36] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863

[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3470.1 CAT II, APP3470.4 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3470.1 CAT II, APP3470.4 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3470.1 CAT II, APP3470.4 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3470.1 CAT II, APP3470.4 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3470.1 CAT II, APP3470.4 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3470.1 CAT II, APP3470.4 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3470.1 CAT II, APP3470.4 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II

[58] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authentication (WASC-01)

[59] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authentication

desc.dataflow.java.access_control_case_insensitive_package_name_comparison