让tomcat禁止不安全的HTTP方法
<security-constraint> <web-resource-collection> <url-pattern>/*</url-pattern> <http-method>PUT</http-method> <http-method>DELETE</http-method> <http-method>HEAD</http-method> <http-method>OPTIONS</http-method> <http-method>TRACE</http-method> </web-resource-collection> <auth-constraint> </auth-constraint> </security-constraint> <login-config> <auth-method>BASIC</auth-method> </login-config>
没有web.xml配置文件,可以通过以下配置进行,简单来说就是要注入到Spring容器中
@Configuration public class TomcatConfig { @Bean public EmbeddedServletContainerFactory servletContainer() { TomcatEmbeddedServletContainerFactory tomcatServletContainerFactory = new TomcatEmbeddedServletContainerFactory(); tomcatServletContainerFactory.addContextCustomizers(new TomcatContextCustomizer(){ @Override public void customize(Context context) { SecurityConstraint constraint = new SecurityConstraint(); SecurityCollection collection = new SecurityCollection(); //http方法 collection.addMethod("PUT"); collection.addMethod("DELETE"); collection.addMethod("HEAD"); collection.addMethod("OPTIONS"); collection.addMethod("TRACE"); //url匹配表达式 collection.addPattern("/*"); constraint.addCollection(collection); constraint.setAuthConstraint(true); context.addConstraint(constraint ); //设置使用httpOnly context.setUseHttpOnly(true); } }); return tomcatServletContainerFactory; } }
可能会在Web服务器上上载、修改或删除Web页面、脚本和文件。
"启用了不安全的HTTP方法:OPTIONS /system HTTP/1.1Allow: HEAD, PUT, DELETE, TRACE, OPTIONS, PATCH
上述方法的用途:
Options、Head、Trace:主要由应用程序来发现和跟踪服务器支持和网络行为;
Get:检索文档;
Put和Post:将文档提交到服务器;
Delete:销毁资源或集合;
Mkcol:创建集合
PropFind和PropPatch:针对资源和集合检索和设置属性;
Copy和Move:管理命名空间上下文中的集合和资源;
Lock和Unlock:改写保护
很显然上述操作明细可以对web服务器进行上传、修改、删除等操作,对服务造成威胁。虽然WebDAV有权限控制但是网上一搜还是一大堆的攻击方法,所以如果不需要这些方法还是建议直接屏蔽就好了。
在web应用中的web.xml加上如下内容
<security-constraint> <web-resource-collection> <web-resource-name>disp</web-resource-name> <url-pattern>/*</url-pattern> <http-method>PUT</http-method> <http-method>DELETE</http-method> <http-method>HEAD</http-method> <http-method>OPTIONS</http-method> <http-method>TRACE</http-method> <http-method>PATCH</http-method> </web-resource-collection> <auth-constraint></auth-constraint> </security-constraint>
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