不應該從遠程聲明實體 bean。
暴露遠程接口的實體 bean 可能會成為應用程序遭到攻擊的突破口。出于性能方面的考慮，應用程序幾乎不使用遠程實體 bean。因此，很有可能會發生這樣的情況：對遠程實體 bean 的聲明錯誤。
例 1：以下對實體 bean 的聲明包含了一個遠程接口：
<ejb-jar>
<enterprise-beans>
<entity>
<ejb-name>EmployeeRecord</ejb-name>
<home>com.wombat.empl.EmployeeRecordHome</home>
<remote>com.wombat.empl.EmployeeRecord</remote>
...
</entity>
...
</enterprise-beans>
</ejb-jar>
[1] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A10 Failure to Restrict URL Access
[2] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A2 Broken Access Control
[3] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A8 Failure to Restrict URL Access
[4] Standards Mapping - FIPS200 - (FISMA) AC
[5] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3480.2 CAT II
[6] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3480.2 CAT II
[7] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 8
[8] A. Taylor et al. J2EE & Java:Developing Secure Web Applications with Java Technology (Hacking Exposed) Osborne/McGraw-Hill
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.5.10, Requirement 7.2
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.2, Requirement 7.2
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 6.5.8, Requirement 7.2