CWE-106 Structs：插件框架未在使用

Struts: Plug-in Framework not in Use

结构: Simple

Abstraction: Variant

状态: Draft

被利用可能性: unkown

基本描述

When an application does not use an input validation framework such as the Struts Validator, there is a greater risk of introducing weaknesses related to insufficient input validation.

扩展描述

Unchecked input is the leading cause of vulnerabilities in J2EE applications. Unchecked input leads to cross-site scripting, process control, and SQL injection vulnerabilities, among others.

Although J2EE applications are not generally susceptible to memory corruption attacks, if a J2EE application interfaces with native code that does not perform array bounds checking, an attacker may be able to use an input validation mistake in the J2EE application to launch a buffer overflow attack.

相关缺陷

  • cwe_Nature: ChildOf cwe_CWE_ID: 1173 cwe_View_ID: 1000 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 1173 cwe_View_ID: 699 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 20 cwe_View_ID: 700 cwe_Ordinal: Primary

适用平台

Language: {'cwe_Name': 'Java', 'cwe_Prevalence': 'Undetermined'}

常见的影响

范围 影响 注释
Integrity Unexpected State

可能的缓解方案

Architecture and Design

策略: Input Validation

Use an input validation framework such as Struts.

Architecture and Design

策略: Libraries or Frameworks

Use an input validation framework such as Struts.

Implementation

策略: Input Validation Use the Struts Validator to validate all program input before it is processed by the application. Ensure that there are no holes in your configuration of the Struts Validator. Example uses of the validator include checking to ensure that:

Implementation

策略: Libraries or Frameworks Use the Struts Validator to validate all program input before it is processed by the application. Ensure that there are no holes in your configuration of the Struts Validator. Example uses of the validator include checking to ensure that:

示例代码

例

In the following Java example the class RegistrationForm is a Struts framework ActionForm Bean that will maintain user input data from a registration webpage for an online business site. The user will enter registration data and, through the Struts framework, the RegistrationForm bean will maintain the user data.

bad Java

public class RegistrationForm extends org.apache.struts.action.ActionForm {

// private variables for registration form
private String name;
private String email;
...

public RegistrationForm() {
super();
}

// getter and setter methods for private variables
...
}

However, the RegistrationForm class extends the Struts ActionForm class which does use the Struts validator plug-in to provide validator capabilities. In the following example, the RegistrationForm Java class extends the ValidatorForm and Struts configuration XML file, struts-config.xml, instructs the application to use the Struts validator plug-in.

good Java

public class RegistrationForm extends org.apache.struts.validator.ValidatorForm {

// private variables for registration form
private String name;
private String email;
...

public RegistrationForm() {
super();
}

public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {...}

// getter and setter methods for private variables
...
}

The plug-in tag of the Struts configuration XML file includes the name of the validator plug-in to be used and includes a set-property tag to instruct the application to use the file, validator-rules.xml, for default validation rules and the file, validation.XML, for custom validation.

good XML

<struts-config>

<form-beans>
<form-bean name="RegistrationForm" type="RegistrationForm"/>
</form-beans>

...

<!-- ========================= Validator plugin ================================= -->
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property
property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
</plug-in>

</struts-config>

分类映射

映射的分类名 ImNode ID Fit Mapped Node Name
7 Pernicious Kingdoms Struts: Plug-in Framework Not In Use