調試信息可幫助攻擊者了解系統并規劃攻擊方式。
Windows Communication Framework (WCF) 服務可以配置成顯示調試信息。在生產環境中，不應使用 Debug Information。<serviceDebug> 標簽可定義是否對 WCF 服務啟用 Debug Information 功能。
如果將屬性 includeExceptionDetailInFaults 設為 true，則會將該應用程序產生的異常信息返回到客戶端。攻擊者可以利用他們從調試輸出中獲得的其他信息，對應用程序所用的框架、數據庫或其他資源發動攻擊。
示例：下列配置文件包含 <serviceDebug> 標簽：
<configuration>
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceBehavior">
<serviceDebug includeExceptionDetailInFaults="True" httpHelpPageEnabled="True"/>
...
[1]
[2] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A10 Insecure Configuration Management
[3] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A6 Information Leakage and Improper Error Handling
[4] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A6 Security Misconfiguration
[5] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3620 CAT II
[6] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3620 CAT II
[7] Standards Mapping - FIPS200 - (FISMA) CM
[8] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 215
[9] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Information Leakage
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.10
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 6.5.5
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.5.6