界: Encapsulation

カプセル化とは、強い境界線を引くことです。Web ブラウザの場合は、自分のモバイルコードが他のモバイルコードに悪用されないようにすることを意味します。サーバー上では、検証されたデータと検証されていないデータ、あるユーザーのデータと別のユーザーのデータ、またはユーザーが見ることを許可されたデータと許可されていないデータの区別などを意味する場合があります。

System Information Leak: HTML Comment in JSP

Java/JSP

Abstract

HTML コメントに含まれている情報の開示は、システムについて攻撃者に教えることになり、攻撃の計画が立てやすくなります。

Explanation

攻撃者にとって HTML コメントは、動的に生成された Web ページに関する情報を簡単に入手できるソースとなります。

例 1:


<!-- TBD: this needs a security audit -->
<form method="POST" action="recalcOrbit">
...

システムがどのように構築されたのかが知りたい撃者にとっては、何の変哲もないコメントでさえ有用な情報です。

References

[1] Standards Mapping - Common Weakness Enumeration CWE ID 615

[2] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200

[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-002420

[4] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data

[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), SC-8 Transmission Confidentiality and Integrity (P1), SI-11 Error Handling (P2)

[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, SC-8 Transmission Confidentiality and Integrity, SI-11 Error Handling

[7] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling

[8] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[9] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.6

[10] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5

[11] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention

[12] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention

[13] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention

[14] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3620 CAT II

[15] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3620 CAT II

[16] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3620 CAT II

[17] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3620 CAT II

[18] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3620 CAT II

[19] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3620 CAT II

[20] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3620 CAT II

[21] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[22] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[23] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[26] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[27] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[28] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[29] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[30] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002480 CAT II, APSC-DV-002570 CAT II, APSC-DV-002580 CAT II

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

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

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