metasploit-framework/scripts/meterpreter/autoroute.rb

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##
# WARNING: Metasploit no longer maintains or accepts meterpreter scripts.
# If you'd like to imporve this script, please try to port it as a post
# module instead. Thank you.
##
#
# Meterpreter script for setting up a route from within a
# Meterpreter session, without having to background the
# current session.
# Default options
session = client
subnet = nil
netmask = "255.255.255.0"
print_only = false
remove_route = false
remove_all_routes = false
# Options parsing
@@exec_opts = Rex::Parser::Arguments.new(
"-h" => [false, "Help and usage"],
"-s" => [true, "Subnet (IPv4, for example, 10.10.10.0)"],
"-n" => [true, "Netmask (IPv4, for example, 255.255.255.0"],
"-p" => [false, "Print active routing table. All other options are ignored"],
"-d" => [false, "Delete the named route instead of adding it"],
"-D" => [false, "Delete all routes (does not require a subnet)"]
)
@@exec_opts.parse(args) { |opt, idx, val|
v = val.to_s.strip
case opt
when "-h"
usage
raise Rex::Script::Completed
when "-s"
if v =~ /[0-9\x2e]+\x2f[0-9]{1,2}/
subnet,cidr = v.split("\x2f")
netmask = Rex::Socket.addr_ctoa(cidr.to_i)
else
subnet = v
end
when "-n"
if (0..32) === v.to_i
netmask = Rex::Socket.addr_ctoa(v.to_i)
else
netmask = v
end
when "-p"
print_only = true
when "-d"
remove_route = true
when "-D"
remove_all_routes = true
end
}
def delete_all_routes
if Rex::Socket::SwitchBoard.routes.size > 0
routes = []
Rex::Socket::SwitchBoard.each do |route|
routes << {:subnet => route.subnet, :netmask => route.netmask}
end
routes.each {|route_opts| delete_route(route_opts)}
print_status "Deleted all routes"
else
print_status "No routes have been added yet"
end
raise Rex::Script::Completed
end
# Identical functionality to command_dispatcher/core.rb, and
# nearly identical code
def print_routes
if Rex::Socket::SwitchBoard.routes.size > 0
tbl = Msf::Ui::Console::Table.new(
Msf::Ui::Console::Table::Style::Default,
'Header' => "Active Routing Table",
'Prefix' => "\n",
'Postfix' => "\n",
'Columns' =>
[
'Subnet',
'Netmask',
'Gateway',
],
'ColProps' =>
{
'Subnet' => { 'MaxWidth' => 17 },
'Netmask' => { 'MaxWidth' => 17 },
})
ret = []
Rex::Socket::SwitchBoard.each { |route|
if (route.comm.kind_of?(Msf::Session))
gw = "Session #{route.comm.sid}"
else
gw = route.comm.name.split(/::/)[-1]
end
tbl << [ route.subnet, route.netmask, gw ]
}
print tbl.to_s
else
print_status "No routes have been added yet"
end
raise Rex::Script::Completed
end
# Yet another IP validator. I'm sure there's some Rex
# function that can just do this.
def check_ip(ip=nil)
return false if(ip.nil? || ip.strip.empty?)
begin
rw = Rex::Socket::RangeWalker.new(ip.strip)
(rw.valid? && rw.length == 1) ? true : false
rescue
false
end
end
# Adds a route to the framework instance
def add_route(opts={})
subnet = opts[:subnet]
netmask = opts[:netmask] || "255.255.255.0" # Default class C
Rex::Socket::SwitchBoard.add_route(subnet, netmask, session)
end
# Removes a route to the framework instance
def delete_route(opts={})
subnet = opts[:subnet]
netmask = opts[:netmask] || "255.255.255.0" # Default class C
Rex::Socket::SwitchBoard.remove_route(subnet, netmask, session)
end
# Defines usage
def usage()
print_status "Usage: run autoroute [-r] -s subnet -n netmask"
print_status "Examples:"
print_status " run autoroute -s 10.1.1.0 -n 255.255.255.0 # Add a route to 10.10.10.1/255.255.255.0"
print_status " run autoroute -s 10.10.10.1 # Netmask defaults to 255.255.255.0"
print_status " run autoroute -s 10.10.10.1/24 # CIDR notation is also okay"
print_status " run autoroute -p # Print active routing table"
print_status " run autoroute -d -s 10.10.10.1 # Deletes the 10.10.10.1/255.255.255.0 route"
print_status "Use the \"route\" and \"ipconfig\" Meterpreter commands to learn about available routes"
print_error "Deprecation warning: This script has been replaced by the post/windows/manage/autoroute module"
end
# Validates the command options
def validate_cmd(subnet=nil,netmask=nil)
if subnet.nil?
print_error "Missing -s (subnet) option"
return false
end
unless(check_ip(subnet))
print_error "Subnet invalid (must be IPv4)"
usage
return false
end
if(netmask and !(Rex::Socket.addr_atoc(netmask)))
print_error "Netmask invalid (must define contiguous IP addressing)"
usage
return false
end
if(netmask and !check_ip(netmask))
print_error "Netmask invalid"
return usage
end
true
end
if print_only
print_routes()
raise Rex::Script::Completed
end
if remove_all_routes
delete_all_routes()
raise Rex::Script::Completed
end
raise Rex::Script::Completed unless validate_cmd(subnet,netmask)
if remove_route
print_status("Deleting route to %s/%s..." % [subnet,netmask])
route_result = delete_route(:subnet => subnet, :netmask => netmask)
else
print_status("Adding a route to %s/%s..." % [subnet,netmask])
route_result = add_route(:subnet => subnet, :netmask => netmask)
end
if route_result
print_good "%s route to %s/%s via %s" % [
(remove_route ? "Deleted" : "Added"),
subnet,netmask,client.sock.peerhost
]
else
print_error "Could not %s route" % [(remove_route ? "delete" : "add")]
end
if Rex::Socket::SwitchBoard.routes.size > 0
print_status "Use the -p option to list all active routes"
end