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。

Password Management: Insecure Submission

Universal

Abstract

HTTP GET リクエストの一部としてパスワードを送信すると、パスワードが表示されたり、記録されたり、あるいはキャッシュに格納されたします。

Explanation

慣例により、HTTP GET リクエストに関連付けられているパラメーターは機密データとして取り扱われないため、そのパラメーターを Web サーバーが記録したり、プロキシがキャッシュしたりします。また、Web ブラウザはそのようなパラメーターを隠すための処理をしません。HTTP GET リクエストの一部としてパスワードや機密データを送信すると、送信されたデータは適切に扱われないだけでなく、攻撃者に漏洩する可能性が高くなります。

例 1: 次の例では、HTTP GET リクエストを介して新しいユーザーパスワードが送信されています。


<form method="get">
  Name of new user: <input type="text" name="username">
  Password for new user: <input type="password" name="user_passwd">
  <input type="submit" name="action" value="Create User">
</form>

また、method 属性のデフォルト値が GET であるため、この属性を省略しても、結果は同じです。

References

[1] Writing Secure Web Applications Advosys Consulting

[2] W3Schools HTML form method attribute

[3] W3Schools HTML5 input formmethod attribute

[4] Standards Mapping - Common Weakness Enumeration CWE ID 359, CWE ID 522

[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200, [13] CWE ID 287

[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200, [14] CWE ID 287, [18] CWE ID 522

[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [20] CWE ID 200, [21] CWE ID 522

[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287

[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287

[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287, [17] CWE ID 200

[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-000197, CCI-001199, CCI-002361

[12] Standards Mapping - FIPS200 IA

[13] Standards Mapping - General Data Protection Regulation (GDPR) Privacy Violation

[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-12 Session Termination (P2), IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)

[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-12 Session Termination, IA-5 Authenticator Management, SC-28 Protection of Information at Rest

[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.3 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 8.2.2 Client-side Data Protection (L1 L2 L3), 8.3.4 Sensitive Private Data (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.1 Malicious Code Search (L2 L3)

[17] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage

[18] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage

[19] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-STORAGE-2

[20] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage

[21] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage

[22] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage

[23] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure

[24] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure

[25] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 6.5.9, Requirement 8.4

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 6.5.4, Requirement 8.4

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 6.5.4, Requirement 8.2.1

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 6.5.4, Requirement 8.2.1

[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 6.5.4, Requirement 8.2.1

[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 6.5.4, Requirement 8.2.1

[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.2.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6

[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.2.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6

[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography

[36] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography

[37] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography

[38] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 311

[39] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 311

[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3330 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[54] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[55] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[56] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[57] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[58] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[59] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[60] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[61] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000060 CAT II, APSC-DV-001740 CAT I, APSC-DV-001750 CAT I, APSC-DV-002330 CAT II

[62] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)

[63] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage

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