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Allow the hostname and port to be overridden, necessary for complex NAT setups

bug/bundler_fix
HD Moore 2015-08-12 16:20:14 -05:00
parent 80f415074b
commit e9203060b0
1 changed files with 18 additions and 6 deletions
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24
lib/msf/core/handler/reverse_http.rb
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@ -55,7 +55,9 @@ module ReverseHttp
OptString.new('MeterpreterServerName', [false, 'The server header that the handler will send in response to requests', 'Apache']),
OptAddress.new('ReverseListenerBindAddress', [false, 'The specific IP address to bind to on the local system']),
OptInt.new('ReverseListenerBindPort', [false, 'The port to bind to on the local system if different from LPORT']),
OptBool.new('OverrideRequestHost', [false, 'Forces clients to connect to LHOST:LPORT instead of keeping original payload host', false]),
OptBool.new('OverrideRequestHost', [false, 'Forces a specific host and port instead of using what the client requests, defaults to LHOST:LPORT', false]),
OptString.new('OverrideLHOST', [false, 'When OverrideRequestHost is set, use this value as the host name for secondary requests']),
OptPort.new('OverrideLPORT', [false, 'When OverrideRequestHost is set, use this value as the port number for secondary requests']),
OptString.new('HttpUnknownRequestResponse', [false, 'The returned HTML response body when the handler receives a request that is not from a payload', '<html><body><h1>It works!</h1></body></html>']),
OptBool.new('IgnoreUnknownPayloads', [false, 'Whether to drop connections from payloads using unknown UUIDs', false])
], Msf::Handler::ReverseHttp)
@ -89,13 +91,23 @@ module ReverseHttp
#
# @return [String] A URI of the form +scheme://host:port/+
def payload_uri(req)
if req and req.headers and req.headers['Host'] and not datastore['OverrideRequestHost']
callback_host = nil
# Extract whatever the client sent us in the Host header
if req and req.headers and req.headers['Host']
callback_host = req.headers['Host']
elsif Rex::Socket.is_ipv6?(datastore['LHOST'])
callback_host = "[#{datastore['LHOST']}]:#{datastore['LPORT']}"
else
callback_host = "#{datastore['LHOST']}:#{datastore['LPORT']}"
end
# Override these host and port as appropriate
if datastore['OverrideRequestHost'] || callback_host.nil?
callback_name = datastore['OverrideLHOST'] || datastore['LHOST']
callback_port = datastore['OverrideLPORT'] || datastore['LPORT']
if Rex::Socket.is_ipv6? callback_name
callback_name = "[#{callback_name}]"
end
callback_host = "#{callback_name}:#{callback_port}"
end
"#{scheme}://#{callback_host}/"
end