界: Encapsulation

封裝是要劃定清楚的界限。在網頁瀏覽器中，這可能意味著確保您的行動程式碼不會被其他行動程式碼濫用。在伺服器上，這可能意味著區分經過驗證的資料與未經驗證的資料、區分一個使用者的資料與另一個使用者的資料，或區分允許使用者查看的資料與不允許查看的資料。

Flash Misconfiguration: Overly Permissive Custom Headers Policy

ActionScript

Abstract

程式定義過度允許的自訂表頭原則。

Explanation

依預設，Flash 應用程式需遵守相同來源策略 (Same Origin Policy)，它可以確保只有在兩個 SWF 應用程式都來自相同網域時，才可以存取彼此的資料。Adobe Flash 允許開發人員在程式上或透過 crossdomain.xml 組態設定檔案的適當設定來修改策略。從 Flash Player 9,0,124,0 開始，Adobe 也引進了定義 Flash Player 可以在網域間傳送哪些自訂表頭的功能。但是，定義這些設定時應特別小心，因為將過度允許的自訂表頭策略和過度允許的跨網域策略一起套用時，會允許惡意應用程式將其選擇的表頭傳送到目標應用程式，可能會導致多種攻擊，或在不知道如何處理所接收之表頭的應用程式執行中造成錯誤。

範例 1：以下配置顯示了使用萬用字元指定 Flash Player 可以在網域間傳送哪些標頭。


  <cross-domain-policy>
    <allow-http-request-headers-from domain="*" headers="*"/>
  </cross-domain-policy>

使用 * 做為 headers 屬性的值，表示任何表頭都會在網域間傳送。

References

[1] Peleus Uhley Creating more secure SWF web applications

[2] Matt Wood and Prajakta Jagdale Auditing Adobe Flash through Static Analysis

[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414

[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)

[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement

[7] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication

[8] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[9] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

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

[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

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

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

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

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

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

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

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

[19] 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

[20] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[21] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[22] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[23] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[26] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[27] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[28] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[29] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[30] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II

[34] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)

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