【XSS】Springboot结合ESAPI——配置XSS防御过滤

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我是靠谱客的博主糊涂黄豆，最近开发中收集的这篇文章主要介绍【XSS】Springboot结合ESAPI——配置XSS防御过滤，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

本文来源与几篇优秀文章的整合,但整合后真实可用, 在此记录以便往后使用
文章地址: https://blog.csdn.net/frog4/article/details/81876462
https://blog.csdn.net/julycaka/article/details/78467291 https://blog.csdn.net/fengyao1995/article/details/81290547

框架：前后端分离、Spring Boot + mybatis

1. 使用的是maven项目；在pom.xml 中加入依赖：

<!-- 预防XSS攻击工具 -->
		<dependency>
			<groupId>org.owasp.esapi</groupId>
			<artifactId>esapi</artifactId>
			<version>2.1.0</version>
		</dependency>
		<dependency>
			<groupId>org.jsoup</groupId>
			<artifactId>jsoup</artifactId>
			<version>1.9.2</version>
		</dependency>

2. 在classpath下加入配置文件:validation.properties和ESAPI.properties

ESAPI.properties

# 是否要打印配置属性,默认为true
ESAPI.printProperties=true
 
ESAPI.AccessControl=org.owasp.esapi.reference.DefaultAccessController
ESAPI.Authenticator=org.owasp.esapi.reference.FileBasedAuthenticator
ESAPI.Encoder=org.owasp.esapi.reference.DefaultEncoder
ESAPI.Encryptor=org.owasp.esapi.reference.crypto.JavaEncryptor
ESAPI.Executor=org.owasp.esapi.reference.DefaultExecutor
ESAPI.HTTPUtilities=org.owasp.esapi.reference.DefaultHTTPUtilities
ESAPI.IntrusionDetector=org.owasp.esapi.reference.DefaultIntrusionDetector
ESAPI.Logger=org.owasp.esapi.reference.JavaLogFactory
ESAPI.Randomizer=org.owasp.esapi.reference.DefaultRandomizer
ESAPI.Validator=org.owasp.esapi.reference.DefaultValidator
 
 
#===========================================================================
# ESAPI Encoder
Encoder.AllowMultipleEncoding=false
Encoder.AllowMixedEncoding=false
Encoder.DefaultCodecList=HTMLEntityCodec,PercentCodec,JavaScriptCodec
 
 
#===========================================================================
# ESAPI 加密模块
Encryptor.PreferredJCEProvider=
Encryptor.EncryptionAlgorithm=AES
Encryptor.CipherTransformation=AES/CBC/PKCS5Padding
Encryptor.cipher_modes.combined_modes=GCM,CCM,IAPM,EAX,OCB,CWC
Encryptor.cipher_modes.additional_allowed=CBC
Encryptor.EncryptionKeyLength=128
Encryptor.ChooseIVMethod=random
Encryptor.fixedIV=0x000102030405060708090a0b0c0d0e0f
Encryptor.CipherText.useMAC=true
Encryptor.PlainText.overwrite=true
Encryptor.HashAlgorithm=SHA-512
Encryptor.HashIterations=1024
Encryptor.DigitalSignatureAlgorithm=SHA1withDSA
Encryptor.DigitalSignatureKeyLength=1024
Encryptor.RandomAlgorithm=SHA1PRNG
Encryptor.CharacterEncoding=UTF-8
Encryptor.KDF.PRF=HmacSHA256
 
#===========================================================================
# ESAPI Http工具
 
HttpUtilities.UploadDir=C:\ESAPI\testUpload
HttpUtilities.UploadTempDir=C:\temp
# Force flags on cookies, if you use HttpUtilities to set cookies
HttpUtilities.ForceHttpOnlySession=false
HttpUtilities.ForceSecureSession=false
HttpUtilities.ForceHttpOnlyCookies=true
HttpUtilities.ForceSecureCookies=true
# Maximum size of HTTP headers
HttpUtilities.MaxHeaderSize=4096
# File upload configuration
HttpUtilities.ApprovedUploadExtensions=.zip,.pdf,.doc,.docx,.ppt,.pptx,.tar,.gz,.tgz,.rar,.war,.jar,.ear,.xls,.rtf,.properties,.java,.class,.txt,.xml,.jsp,.jsf,.exe,.dll
HttpUtilities.MaxUploadFileBytes=500000000
# Using UTF-8 throughout your stack is highly recommended. That includes your database driver,
# container, and any other technologies you may be using. Failure to do this may expose you
# to Unicode transcoding injection attacks. Use of UTF-8 does not hinder internationalization.
HttpUtilities.ResponseContentType=text/html; charset=UTF-8
# This is the name of the cookie used to represent the HTTP session
# Typically this will be the default "JSESSIONID" 
HttpUtilities.HttpSessionIdName=JSESSIONID
 
 
 
#===========================================================================
# ESAPI Executor
Executor.WorkingDirectory=
Executor.ApprovedExecutables=
 
 
#===========================================================================
# ESAPI Logging
# Set the application name if these logs are combined with other applications
Logger.ApplicationName=ExampleApplication
# If you use an HTML log viewer that does not properly HTML escape log data, you can set LogEncodingRequired to true
Logger.LogEncodingRequired=false
# Determines whether ESAPI should log the application name. This might be clutter in some single-server/single-app environments.
Logger.LogApplicationName=true
# Determines whether ESAPI should log the server IP and port. This might be clutter in some single-server environments.
Logger.LogServerIP=true
# LogFileName, the name of the logging file. Provide a full directory path (e.g., C:\ESAPI\ESAPI_logging_file) if you
# want to place it in a specific directory.
Logger.LogFileName=ESAPI_logging_file
# MaxLogFileSize, the max size (in bytes) of a single log file before it cuts over to a new one (default is 10,000,000)
Logger.MaxLogFileSize=10000000
 
 
#===========================================================================
# ESAPI Intrusion Detection
IntrusionDetector.Disable=false
IntrusionDetector.event.test.count=2
IntrusionDetector.event.test.interval=10
IntrusionDetector.event.test.actions=disable,log
 
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.count=1
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.interval=1
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.actions=log,disable,logout
 
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.count=10
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.interval=5
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.actions=log,disable,logout
 
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.count=2
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.interval=10
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.actions=log,logout
 
 
#===========================================================================
# ESAPI 校验器
#校验器的配置文件
Validator.ConfigurationFile=validation.properties
 
# Validators used by ESAPI
Validator.AccountName=^[a-zA-Z0-9]{3,20}$
Validator.SystemCommand=^[a-zA-Z\-\/]{1,64}$
Validator.RoleName=^[a-z]{1,20}$
 
#the word TEST below should be changed to your application 
#name - only relative URL's are supported
Validator.Redirect=^\/test.*$
 
# Global HTTP Validation Rules
# Values with Base64 encoded data (e.g. encrypted state) will need at least [a-zA-Z0-9/+=]
Validator.HTTPScheme=^(http|https)$
Validator.HTTPServerName=^[a-zA-Z0-9_.\-]*$
Validator.HTTPParameterName=^[a-zA-Z0-9_]{1,32}$
Validator.HTTPParameterValue=^[a-zA-Z0-9.\-\/+=@_ ]*$
Validator.HTTPCookieName=^[a-zA-Z0-9\-_]{1,32}$
Validator.HTTPCookieValue=^[a-zA-Z0-9\-\/+=_ ]*$
 
# Note that max header name capped at 150 in SecurityRequestWrapper!
Validator.HTTPHeaderName=^[a-zA-Z0-9\-_]{1,50}$
Validator.HTTPHeaderValue=^[a-zA-Z0-9()\-=\*\.\?;,+\/:&_ ]*$
Validator.HTTPContextPath=^\/?[a-zA-Z0-9.\-\/_]*$
Validator.HTTPServletPath=^[a-zA-Z0-9.\-\/_]*$
Validator.HTTPPath=^[a-zA-Z0-9.\-_]*$
Validator.HTTPQueryString=^[a-zA-Z0-9()\-=\*\.\?;,+\/:&_ %]*$
Validator.HTTPURI=^[a-zA-Z0-9()\-=\*\.\?;,+\/:&_ ]*$
Validator.HTTPURL=^.*$
Validator.HTTPJSESSIONID=^[A-Z0-9]{10,30}$
 
# Validation of file related input
Validator.FileName=^[a-zA-Z0-9!@#$%^&{}\[\]()_+\-=,.~'` ]{1,255}$
Validator.DirectoryName=^[a-zA-Z0-9:/\\!@#$%^&{}\[\]()_+\-=,.~'` ]{1,255}$
 
# Validation of dates. Controls whether or not 'lenient' dates are accepted.
# See DataFormat.setLenient(boolean flag) for further details.
Validator.AcceptLenientDates=false

validation.properties

# 校验某个字段的正则表达式
Validator.SafeString=^[.\p{Alnum}\p{Space}]{0,1024}$
Validator.Email=^[A-Za-z0-9._%'-]+@[A-Za-z0-9.-]+\.[a-zA-Z]{2,4}$
Validator.IPAddress=^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$
Validator.URL=^(ht|f)tp(s?)\:\/\/[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*)*(\/?)([a-zA-Z0-9\-\.\?\,\:\'\/\\\+=&amp;%\$#_]*)?$
Validator.CreditCard=^(\d{4}[- ]?){3}\d{4}$
Validator.SSN=^(?!000)([0-6]\d{2}|7([0-6]\d|7[012]))([ -]?)(?!00)\d\d\3(?!0000)\d{4}$

过滤器：在项目包下创建类 XssFilter实现Filter接口

import java.io.IOException;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
 
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
/**
 * 描述 : 跨站请求防范
 *
 * @author
 *
 */
@WebFilter(filterName = "xssFilter", urlPatterns = "/*", asyncSupported = true)
public class XssFilter implements Filter {
 
  /**
   * 描述 : 日志
   */
  private static final Logger LOGGER = LoggerFactory.getLogger(XssFilter.class);
 
  @Override
  public void init(FilterConfig filterConfig) throws ServletException {
 
  }
 
  @Override
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
      throws IOException, ServletException {
    XssHttpServletRequestWrapper xssRequest = new XssHttpServletRequestWrapper((HttpServletRequest) request);
    //System.out.println("进入XSS过滤器............");
    chain.doFilter(xssRequest, response);
    //System.out.println("过滤器XSS执行完......................");
 
  }
 
  @Override
  public void destroy() {
  }
 
}

敏感字符转换类：HttpServletRequestWrapper

import java.util.regex.Pattern;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
 
import org.owasp.esapi.ESAPI;
 
 
public class XssHttpServletRequestWrapper extends HttpServletRequestWrapper {
 
    public XssHttpServletRequestWrapper(HttpServletRequest servletRequest) {
 
        super(servletRequest);
 
    }
 
    public String[] getParameterValues(String parameter) {
 
        String[] values = super.getParameterValues(parameter);
 
        if (values == null) {
 
            return null;
 
        }
 
        int count = values.length;
 
        String[] encodedValues = new String[count];
 
        for (int i = 0; i < count; i++) {
 
            encodedValues[i] = cleanXSS(values[i]);
 
        }
 
        return encodedValues;
 
    }
 
    public String getParameter(String parameter) {
 
        String value = super.getParameter(parameter);
 
        if (value == null) {
 
            return null;
 
        }
 
        return cleanXSS(value);
 
    }
 
    public String getHeader(String name) {
 
        String value = super.getHeader(name);
 
        if (value == null)
 
            return null;
 
        return cleanXSS(value);
 
    }
 
//    private String cleanXSS(String value) {
//
//        //You'll need to remove the spaces from the html entities below
//
//        value = value.replaceAll("<", "& lt;").replaceAll(">", "& gt;");
//
//        value = value.replaceAll("\(", "& #40;").replaceAll("\)", "& #41;");
//
//        value = value.replaceAll("'", "& #39;");
//
//        value = value.replaceAll("eval\((.*)\)", "");
//
//        value = value.replaceAll("[\"\'][\s]*javascript:(.*)[\"\']", """");
//
//        value = value.replaceAll("script", "");
//
//        return value;
//
//    }
    
    private String cleanXSS(String value) {
        if (value != null) {
        	// 推荐使用ESAPI库来避免脚本攻击
            value = ESAPI.encoder().canonicalize(value);
 
            // 避免空字符串
            value = value.replaceAll("", "");
 
            // 避免script 标签
            Pattern scriptPattern = Pattern.compile("<script>(.*?)</script>", Pattern.CASE_INSENSITIVE);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免src形式的表达式
            scriptPattern = Pattern.compile("src[rn]*=[rn]*\'(.*?)\'", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
 
            scriptPattern = Pattern.compile("src[rn]*=[rn]*\"(.*?)\"", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 删除单个的 </script> 标签
            scriptPattern = Pattern.compile("</script>", Pattern.CASE_INSENSITIVE);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 删除单个的<script ...> 标签
            scriptPattern = Pattern.compile("<script(.*?)>", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免 eval(...) 形式表达式
            scriptPattern = Pattern.compile("eval\((.*?)\)", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免 expression(...) 表达式
            scriptPattern = Pattern.compile("expression\((.*?)\)", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免 javascript: 表达式
            scriptPattern = Pattern.compile("javascript:", Pattern.CASE_INSENSITIVE);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免 vbscript: 表达式
            scriptPattern = Pattern.compile("vbscript:", Pattern.CASE_INSENSITIVE);
            value = scriptPattern.matcher(value).replaceAll("");
 
            // 避免 οnlοad= 表达式
            scriptPattern = Pattern.compile("onload(.*?)=", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
            value = scriptPattern.matcher(value).replaceAll("");
            
            // 避免 onXX= 表达式
 			scriptPattern = Pattern.compile("on.*(.*?)=", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
 			value = scriptPattern.matcher(value).replaceAll("");
 
        }
        return value;
    }
}

创建配置类:XSSFilterConfig

import com.gdtel.common.xssfilter.XssFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import javax.servlet.Filter;
 
/**
 * @author jxwen
 * @create 2018-10-19 9:14
 * @desc
 **/
@Configuration
public class XSSFilterConfig {
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(xssFilter());
        registration.addUrlPatterns("/*");
        registration.addInitParameter("paramName", "paramValue");
        registration.setName("xssFilter");
        return registration;
    }
 
    /**
     * 创建一个bean
     * @return
     */
    @Bean(name = "xssFilter")
    public Filter xssFilter() {
        return new XssFilter();
    }
 
}