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。
Android Misconfiguration: Zip Entry Overwrite Protection Disabled
Abstract
Zip Entry Overwrite 保護が無効になっています。Zip Entry Overwrite 保護は、Zip ファイル エントリ名の検証を提供することで、Zip パス トラバーサル脆弱性から保護します。
Explanation
Zip パス トラバーサル脆弱性が発生するのは、悪意のある攻撃者が特定の Zip ファイル内の Zip ファイル エントリ名を指定できる場合です。Zip ファイル エントリ名が悪意を持って指定されると、攻撃者は対応する Zip ファイルが展開されたときに重要なシステム ファイルの内容を上書きできます。攻撃者は、
例 1: 次のコードは、Zip Entry Overwrite 保護を無効にします。
../ や / などのパス トラバーサル イディオムを使用して、プログラム領域外にあるシステム ファイルにアクセスする可能性があります。Android 14 以降を対象とする Android アプリケーションは、Zip ファイルの抽出中に ../ や / などのイディオムが検出されると、デフォルトで例外を発生させることができます。このセキュリティ機能は、上書きしたり、完全に無効にしたりすることができます。例 1: 次のコードは、Zip Entry Overwrite 保護を無効にします。
...
dalvik.system.ZipPathValidator.clearCallback();
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References
[1] Zip Path Traversal
[2] Standards Mapping - Common Weakness Enumeration CWE ID 22, CWE ID 73
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [10] CWE ID 022
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [12] CWE ID 022
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [8] CWE ID 022
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [8] CWE ID 022
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [8] CWE ID 022
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [5] CWE ID 022, [12] CWE ID 020
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000345, CCI-002754
[10] Standards Mapping - FIPS200 SI
[11] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-5 Access Restrictions for Change (P1), SI-10 Information Input Validation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-5 Access Restrictions for Change, SI-10 Information Input Validation
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 12.3.1 File Execution Requirements (L1 L2 L3), 12.3.2 File Execution Requirements (L1 L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[16] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[18] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[19] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[20] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[21] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[22] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[23] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[33] 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
[34] 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
[35] 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.2.3 - Web Software Access Controls, Control Objective C.3.2 - Web Software Attack Mitigation
[36] Standards Mapping - SANS Top 25 2009 Risky Resource Management - CWE ID 426
[37] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 022
[38] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 022
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3600 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3600 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3600 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3600 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3600 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3600 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3600 CAT II
[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 4.1 APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002960 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002960 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Path Traversal (WASC-33)
[62] Standards Mapping - Web Application Security Consortium 24 + 2 Path Traversal
desc.semantic.java.android_misconfiguration_zip_entry_overwrite_protection_disabled