界: Input Validation and Representation

入力の検証や表現の問題は、メタキャラクター、代替エンコーディング、数値表現などによって引き起こされます。セキュリティの問題は、入力を信頼することに起因します。この問題に含まれるのは、「Buffer Overflow」、「Cross-Site Scripting」攻撃、「SQL Injection」などです。

Dangerous File Injection

Abstract
攻撃者がシステム上に任意のコンテンツでファイルを作成できるようになります。
Explanation
攻撃者がサーバーのファイル システムに任意のコンテンツでファイルを作成できるようになります。作成されたファイルは、ファイルに挿入されたコンテンツを制御する機能により、攻撃者が後で追加の攻撃を実行するために使用できます。

攻撃者にファイルのコンテンツを制御する能力があり、そのファイルが Web サーバーから提供されたものである場合、攻撃者は、サーバー上で任意のコマンドをリモートで実行できるようにする悪意のある Web シェルを挿入できるようになります。

攻撃者がそのファイル システム内の異なるファイルからのコンテンツでファイルを作成できる場合、攻撃者は、脆弱性のあるアプリケーションの許可を使用してアクセスできるファイル システム上の任意のファイルを読み取ることができるようになります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 94, CWE ID 98, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001167, CCI-002754
[8] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-18 Mobile Code (P2), SI-10 Information Input Validation (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-18 Mobile Code, SI-10 Information Input Validation
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.3.9 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 12.3.6 File Execution Requirements (L2 L3), 14.2.3 Dependency (L1 L2 L3), 14.2.4 Dependency (L2 L3)
[12] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[13] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[14] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[15] Standards Mapping - OWASP Top 10 2010 A1 Injection
[16] Standards Mapping - OWASP Top 10 2013 A1 Injection
[17] Standards Mapping - OWASP Top 10 2017 A1 Injection
[18] Standards Mapping - OWASP Top 10 2021 A03 Injection
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[28] 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
[29] 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
[30] 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
[31] Standards Mapping - SANS Top 25 2009 Risky Resource Management - CWE ID 073
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-003300 CAT II
[54] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
[55] Standards Mapping - Web Application Security Consortium 24 + 2 Path Traversal
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