Permission Manipulation: Logging

C#/VB.NET/ASP.NET

Abstract

監査を決定する権限を直接変更するためのユーザー入力を許可すると、攻撃者が自分のアクティビティを隠すことが可能になります。

Explanation

記録内容の判断に使用される、アプリケーション内の権限の決定に使用される値を攻撃者が変更できる場合、権限操作ロギングエラーが発生します。Windows には、リソースへのアクセスが成功または失敗したかどうかを確認するために監査する必要があるユーザーとグループの決定に使用されるシステムアクセス制御リスト (SACL) があります。これらのリストまたはアクセス権設定内に格納されているアクセス制御エントリ (ACE) を攻撃者が制御できる場合、攻撃者は自分のアカウントの監査を無効化する可能性があり、これにより攻撃者が違反して行った可能性がある内容の決定がさらに難しくなります。

例 1: 次のコードを使用して、ユーザーは監査ログを生成する操作を指定できます。


...
CrytoKeyAuditRule auditRule = new CryptoKeyAuditRule(IdRef, (CryptoKeyRights) input, AuditFlags.Success); 
...

このシナリオで、ユーザーは input を制御できる場合、記録できる操作のタイプを指定できます。ユーザーはこれを CryptoKeyRights.Delete に操作できる場合、暗号鍵を記録せずに読み取ることができる可能性があり、これにより攻撃者が暗号鍵を盗んだことに気付きません。

References

[1] Standards Mapping - Common Weakness Enumeration CWE ID 264, CWE ID 732

[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [15] CWE ID 732

[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [16] CWE ID 732

[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [22] CWE ID 732

[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001813, CCI-002165

[6] Standards Mapping - FIPS200 AC

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

[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), AU-9 Protection of Audit Information (P1), CM-5 Access Restrictions for Change (P1)

[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, AU-9 Protection of Audit Information, CM-5 Access Restrictions for Change

[10] Standards Mapping - OWASP API 2023 API3 Broken Object Property Level Authorization

[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.3.3 Other Access Control Considerations (L2 L3), 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), 7.3.3 Log Protection Requirements (L2 L3)

[12] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs

[13] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation

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

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

[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2

[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

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

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

[27] 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

[28] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 732

[29] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 732

[30] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 732

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

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

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

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

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

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

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

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

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

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

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

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

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

[44] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001280 CAT II, APSC-DV-001290 CAT II, APSC-DV-001300 CAT II, APSC-DV-001310 CAT II, APSC-DV-001320 CAT II, APSC-DV-001330 CAT II, APSC-DV-001410 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001280 CAT II, APSC-DV-001290 CAT II, APSC-DV-001300 CAT II, APSC-DV-001310 CAT II, APSC-DV-001320 CAT II, APSC-DV-001330 CAT II, APSC-DV-001410 CAT II

[46] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)

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