Multiples Remotes DoS Attacks in Artisoft XtraMail v1.11

From: Ussr Labs (labsat_private)
Date: Wed Nov 10 1999 - 01:38:20 PST

  • Next message: Brock Tellier: "Re: [Re: FreeBSD 3.3's seyon vulnerability]"

    Multiples Remotes DoS Attacks in Artisoft XtraMail v1.11 Vulnerability
    
    PROBLEM:
    UssrLabs found multiple places in XtraMail v1.11 where they do not use
    proper bounds checking.
    The following all result in a Denial of Service against the service in
    question.
    
    
    Example:
    The pop3 (110) service has an overflow in the login function.
    +OK XtraMail POP3 Server (v1.11 69970090850) for Windows 95 ready at Wed, 10
    Nov
     99  06:14:18 +-300
    user itsme
    +OK <itsme>
    pass (buffer)
    
    Where buffer is 1500 characters.
    
    The SMTP (25) service has an overflow in the login function.
    220 XtraMail SMTP Server (v1.11 69970090850) for Windows 95 ready at Wed, 10
    Nov
     99  06:16:14 +-300
    helo (buffer)
    Where buffer is 10000 characters.
    
    The Control Service (32000) service has an overflow in the login function.
    XtraMail Control Service (v1.11 69970090850) for Windows 95 ready at Wed, 10
    Nov
     99  06:20:11 +-300
    Username:  (buffer)
    Where buffer is 10000 characters.
    
    
    Vendor Status:
    Not Contacted
    
    Vendor   Url: http://www.artisoft.com/
    Program Url: http://netsales.net/pk.wcgi/artisoft/xtramail
    
    Credit: USSRLABS
    
    SOLUTION
        Nothing yet.
    



    This archive was generated by hypermail 2b30 : Fri Apr 13 2001 - 15:10:55 PDT