Hyperion FTP Server buffer overflow

From: securma massine (securmaat_private)
Date: Tue Dec 24 2002 - 01:24:46 PST

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    hi
    
    Hyperion FTP Server (http://www.mollensoft.com/ )is a 
    powerful, reliable FTP server for Windows 95/98/NT/2000, 
    and supports all basic FTP commands, and much more, such as 
    passive mode. 
    A vulnerability exists in Hyperion Ftp Server (version 
    2.8.11)which allows a remote 
    user to execute an arbitrary code ,it is a similar 
    vulnerability of Enceladus Server Suite 
    I believe that the problem reside in the use of Marby 
    Socket Window and
     ftpservx.dll 
    who does not support dir+(buffer=300 byte)
    Access violation - code c0000005 (first chance)
    eax=0012bcbc ebx=0012c574 ecx=42424242 edx=7846f5b5 
    esi=0012bce4 edi=00147ffd
    eip=42424242 esp=0012bc24 ebp=0012bc44 iopl=0 nv up 
    ei pl zr na po nc
    cs=001b ss=0023 ds=0023 es=0023 fs=003b 
    gs=0000 efl=00000246
    42424242 ?? ???
    
    
    made that eip point towards the beginning of our buffer 
    makes me think a news methode to backdooring...
    it is also noticed that the pass is without encoding 
    a:/users/"login "
    
    securma massine
    french translation :
    http://www.itmaroc.com/modules.php?
    name=News&file=article&sid=277
    _________________________________________________________ 
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