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							   Struts 2: Undeclared Validator
							
                    
							
                    ABSTRACT
                    
							
                    
							  ActionClass-validation.xml 中引用的驗證器未在 validators.xml 中聲明
							
                    
							
                    EXPLANATION
                    
							
                    
							  Struts2 要求先在 validators.xml 中定義自定義的驗證器，然后才能在 Action 驗證器定義中使用它。缺少驗證器定義，將表示該驗證不是最新的。

                    例如： 下列 Action 驗證器未在 validators.xml 中定義。

                    <validators>
                    <validator name="required" class="com.opensymphony.xwork2.validator.validators.RequiredFieldValidator"/>
                    </validators>
                    	

                    驗證邏輯的維護至關重要，驗證邏輯必須與應用程序的其余部分保持同步。未經檢驗的輸入是導致當今一些最糟糕、最常見的軟件安全問題的根源。Cross-site scripting、SQL injection 和 process control 漏洞是由于缺少輸入驗證或者輸入驗證不完整造成的。雖然 J2EE 應用程序通常情況下不容易受到內存損壞的影響，但是如果 J2EE 應用程序連接到未執行數組邊界檢查的本地代碼，攻擊者就可能會利用 J2EE 應用程序中一個輸入校驗錯誤發起 buffer overflow 攻擊。
							
                    
							 								
                    REFERENCES
                    
																								   
                    [1] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A1 Unvalidated Input 
                    
																									   
                    [2] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A6 Security Misconfiguration 
                    
																									   
                    [3] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3510 CAT I 
                    
																									   
                    [4] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3510 CAT I 
                    
																									   
                    [5] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 101 
                    
																									   
                    [6] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.3.1.1 
                    
																									   
                    [7] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.1 
                    
																									   
                    [8] Standards Mapping - FIPS200 - (FISMA) SI 
                    
																									   
                    [9] T. Husted et al. Struts in Action:Building Web Applications with the Leading Java Framework Manning Publications
                    
																									   
                    [10]  The Struts2 Validation Framework The Apache Foundation
                    
																														
                    
							
                    
							
                    
							
                    
							Copyright 2013 Fortify Software - All rights reserved.
							
                    
							(Generated from version 2013.1.1.0008 of the Fortify Secure Coding Rulepacks)
							
                    
							desc.config.java.struts2_undeclared_validator
							
                    
							
                    
						
                    

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