Before diving into the exploit, it is crucial to understand the file extension .shtml. Unlike a standard .html file, an .shtml file supports Server Side Includes (SSI). SSI allows a web server to execute commands or include dynamic content (like timestamps, file contents, or even system commands) before serving the page to the client.
For example, a line like <!--#exec cmd="ls" --> inside an .shtml file would execute the ls command on the server and embed the result into the HTML. view index shtml camera patched
Tools like nmap with the http-shtml-vuln script (part of nmap-vulners) can detect remaining instances: Before diving into the exploit, it is crucial
nmap --script http-shtml-vuln -p 80,8080 [network/cidr]
<Directory "/var/www/html/cameras">
Options +IncludesNoExec -Indexes -ExecCGI
AddHandler server-parsed .shtml
AllowOverride None
Require ip 192.168.0.0/16 10.0.0.0/8
# Prevent access to config dir
<FilesMatch "\.conf$">
Require all denied
</FilesMatch>
</Directory>
<Directory "/var/www/html/cameras">
<Files "*.cgi">
Options +ExecCGI
Require all granted
</Files>
</Directory> Options +ExecCGI
Require all granted
<
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