WCF Misconfiguration: Unauthorized Access

ABSTRACT

該服務不采用授權控制。

EXPLANATION

客戶端調用特定的 WCF 服務時，WCF 會提供多種授權方案，這些方案可驗證調用者是否具有在服務器上執行此服務方法的權限。如果 WCF 服務未啟用授權控制，經過驗證的用戶就能實現權限擴大。


例 1：以下配置指示 WCF 在執行服務時不檢查客戶端的授權級別：

<behaviors>
<serviceBehaviors>
<behavior>
      ...
<serviceAuthorization principalPermissionMode="None" />
</behavior>
</serviceBehaviors>
</behaviors>

REFERENCES

[1] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A10 Insecure Configuration Management

[2] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A9 Insecure Communications

[3] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A9 Insufficient Transport Layer Protection

[4] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II

[5] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II

[6] Dominick Baier and Christian Weyer Authorization in WCF-Based Services Microsoft Developer Network (MSDN)

[7] Microsoft Authorizing Access to Operations Microsoft Developer Network (MSDN)

[8] Standards Mapping - FIPS200 - (FISMA) CM, SC

[9] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 264

[10] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Insufficient Authentication

[11] Standards Mapping - SANS Top 25 2010 - (SANS 2010) Porous Defenses - CWE ID 311

[12] Standards Mapping - SANS Top 25 2011 - (SANS Top 25 2011) Porous Defenses - CWE ID 311

[13] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9

[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 4.1, Requirement 6.5.10

[15] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 4.1, Requirement 6.5.4

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