"远端www服务支持TRACE请求"验证及修复(apache,Jetty,Tomcat)


在服务器漏扫中经常遇到"远端www服务支持TRACE请求"漏洞,绿盟扫描器所提供修复建议有不适用的情况。对已经处理过的不同应用禁用TRACE请求做一总结记录。

首先漏洞验证:

模拟trace请求,假设报漏洞的端口是8081:

curl -v -X TRACE -I localhost:8081

如果回显为:

< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< Content-Type: message/http
Content-Type: message/http

则该端口服务支持trace请求,漏洞存在。

如果回显为:

< HTTP/1.1 403 Forbidden
< Content-Type: text/html; charset=iso-8859-1
或者回显为
< HTTP/1.1 405 Method Not Allowed
< Content-Type: text/html; charset=iso-8859-1

则该漏洞不存在。

 

漏洞修复:

1.对于apache:
对于2.0.55以上版本的apache服务器,
在httpd.conf尾部添加如下指令后重启apache即可:

TraceEnable off

 其它版本的Apache服务器可编辑httpd.conf文件:

激活rewrite模块(去掉符号 # ):

LoadModule rewrite_module modules/mod_rewrite.so

在各虚拟主机的配置文件里添加如下语句:
# 启用 Rewrite 引擎

RewriteEngine On

# 对Request中的Method字段进行匹配:^TRACE 即以TRACE字符串开头

RewriteCond %{REQUEST_METHOD} ^TRACE

# 定义规则:对于所有格式的来源请求,均返回[F]-Forbidden响应

RewriteRule .* - [F]

注:可以在httpd.conf里搜索VirtualHost确定虚拟主机的配置文件。

 

2.对于非内嵌tomcat:
直接修改tomcat根目录conf目录下的web.xml,
在文件末尾(</web-app>之前)添加如下代码:

<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>

注:在tomcat的在server.xml中先允许TRACE请求,再在web.xml中禁用TRACE,以此禁用TRACE请求.

<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" allowTrace="true"
               redirectPort="8443" />

 

3.对于spring boot内嵌tomcat:

配置TomcatConfig.java

 1 import org.apache.catalina.Context;
 2 import org.apache.tomcat.util.descriptor.web.SecurityCollection;
 3 import org.apache.tomcat.util.descriptor.web.SecurityConstraint;
 4 import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
 5 import org.springframework.boot.context.embedded.tomcat.TomcatContextCustomizer;
 6 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
 7 import org.springframework.context.annotation.Bean;
 8 import org.springframework.context.annotation.Configuration;
 9 
10 @Configuration
11 public class TomcatConfig {
12     
13     @Bean
14     public EmbeddedServletContainerFactory servletContainer() {
15         TomcatEmbeddedServletContainerFactory tomcatServletContainerFactory = new TomcatEmbeddedServletContainerFactory();
16         tomcatServletContainerFactory.addContextCustomizers(new TomcatContextCustomizer(){
17             @Override
18             public void customize(Context context) {
19                 SecurityConstraint securityConstraint  = new SecurityConstraint();
20                 securityConstraint.setUserConstraint("CONFIDENTIAL");  
21                 SecurityCollection collection = new SecurityCollection();
22                 
23                 collection.addPattern("/*");  
24                 collection.addMethod("HEAD");  
25                 collection.addMethod("PUT");  
26                 collection.addMethod("DELETE");  
27                 collection.addMethod("OPTIONS");  
28                 collection.addMethod("TRACE");  
29                 collection.addMethod("COPY");  
30                 collection.addMethod("SEARCH");  
31                 collection.addMethod("PROPFIND");  
32                 securityConstraint .addCollection(collection);  
33                 context.addConstraint(securityConstraint );  
34             }
35         });
36         
37         //禁用TRACE请求
38         tomcatServletContainerFactory.addConnectorCustomizers(connector -> {
39             connector.setAllowTrace(true);
40         });
41         return tomcatServletContainerFactory;
42     }
43 }

 

4.对于非内嵌式Jetty:

在jetty.xml中增加配置:

1 <security-constraint>
2     <web-resource-collection>
3         <web-resource-name>NoTrace</web-resource-name>
4         <url-pattern>/*</url-pattern>
5         <http-method>TRACE</http-method>
6     </web-resource-collection>
7     <auth-constraint></auth-constraint>
8 </security-constraint>

 

5.对于Springboot内嵌式Jetty:

由于这种情况没有实际操作过,代码参考其他博主。采用拦截器来过滤所有的trace请求->启动类增加配置来实现,或者和内嵌式tomcat一样直接添加Jetty配置类来实现也可以。

参考链接:https://blog.csdn.net/qq_33479841/article/details/109769790


免责声明!

本站转载的文章为个人学习借鉴使用,本站对版权不负任何法律责任。如果侵犯了您的隐私权益,请联系本站邮箱yoyou2525@163.com删除。



 
粤ICP备18138465号  © 2018-2025 CODEPRJ.COM