How do I see the source code? • Include files (header.inc) • Backup files • Temp files (nano, vim, etc) • .git or another version-control system • Arbitrary file reading 

Interpret it! Anton “Bo0oM” Lopanitsyn 

Server configuration errors Multiple routing and microservices location / { try_files $uri $uri/ /index.html; ... } location /blog { … } 

Server configuration errors Multiple routing and microservices 

How to find it? https://example.com/config.php - 200, 0B https://example.com/config.php - 200, 3KB Content-type: application/octet-stream text/plain 

Find a vulnerability in the config! location ~ ^(.+\.php)(.*)$ { fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_param SCRIPT_FILENAME /var/www/html$fastcgi_script_name; fastcgi_param DOCUMENT_ROOT /var/www/html; fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_index index.php; } 

Nope https://nginx.org/en/docs/http/ngx_http_fastcgi_module.html#fastcgi_split_path_info 

Windows + Nginx = <3 https://example.com/config.php - 200, 0B https://example.com/config.pHP location ~ ^(.+\.php)(.*)$ location ~ ^(.+\.php)(.*)$ Linux (case sensitive): https://example.com/config.pHP - 404 Windows: https://example.com/config.pHP - 200 

Nginx /etc/nginx/site-enabled/default
 
 
 server { listen 80 default_server; listen [::]:80 default_server; root /var/www/html; index index.html index.htm index.nginx-debian.html; server_name _; location / { try_files $uri $uri/ =404; } } 

No content

No content

No content

Apache /etc/apache2/sites-enabled/000-default.conf ServerAdmin webmaster@localhost DocumentRoot /var/www/html ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined 

Apache /etc/apache2/sites-enabled/example.conf DocumentRoot /var/www/html/example.com SetHandler application/x-httpd-php 
 … 

How to find it? example.com, IP: 123.123.123.123 Check http://123.123.123.123/config.php http://123.123.123.123/example/config.php http://123.123.123.123/example.com/config.php 

CDN’s https://forum.example.com https://cdn.example.com/forum/static/123/123.jpg https://cdn.example.com/forum/config.php Unbelievable, but the fact is, some move the whole project to cdn! 

0day 

Blog: https://bo0om.ru Twitter: @i_bo0om Telegram channel: @webpwn