1 files changed, 102 insertions, 0 deletions
diff --git a/scripts/socks-brute.nse b/scripts/socks-brute.nse
new file mode 100644
index 0000000..1da8a53
--- /dev/null
+++ b/scripts/socks-brute.nse
@@ -0,0 +1,102 @@
+local brute = require "brute"
+local creds = require "creds"
+local shortport = require "shortport"
+local socks = require "socks"
+local stdnse = require "stdnse"
+
+description = [[
+Performs brute force password auditing against SOCKS 5 proxy servers.
+]]
+
+---
+-- @usage
+-- nmap --script socks-brute -p 1080 <host>
+--
+-- @output
+-- PORT     STATE SERVICE
+-- 1080/tcp open  socks
+-- | socks-brute:
+-- |   Accounts
+-- |     patrik:12345 - Valid credentials
+-- |   Statistics
+-- |_    Performed 1921 guesses in 6 seconds, average tps: 320
+--
+
+author = "Patrik Karlsson"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"brute", "intrusive"}
+
+
+portrule = shortport.port_or_service({1080, 9050}, {"socks", "socks5", "tor-socks"})
+
+Driver = {
+
+  new = function (self, host, port)
+    local o = { host = host, port = port }
+    setmetatable (o,self)
+    self.__index = self
+    return o
+  end,
+
+  connect = function ( self )
+    self.helper = socks.Helper:new(self.host, self.port, { timeout = 10000 })
+    return self.helper:connect(nil, brute.new_socket())
+  end,
+
+  login = function( self, username, password )
+    local status, err = self.helper:authenticate({username=username, password=password})
+
+    if (not(status)) then
+      -- the login failed
+      if ( "Authentication failed" == err ) then
+        return false, brute.Error:new( "Login failed" )
+      end
+
+      -- something else happened, let's retry
+      local err = brute.Error:new( err )
+      err:setRetry( true )
+      return false, err
+    end
+
+    return true, creds.Account:new(username, password, creds.State.VALID)
+  end,
+
+  disconnect = function( self )
+    return self.helper:close()
+  end,
+}
+
+local function checkAuth(host, port)
+
+  local helper = socks.Helper:new(host, port)
+  local status, response = helper:connect()
+  if ( not(status) ) then
+    return false, response
+  end
+
+  if ( response.method == socks.AuthMethod.NONE ) then
+    return false, "\n  No authentication required"
+  end
+
+  local status, err = helper:authenticate({username="nmap", password="nmapbruteprobe"})
+  if ( err ~= "Authentication failed" ) then
+    return false, err
+  end
+
+  helper:close()
+  return true
+end
+
+action = function(host, port)
+
+  local status, response = checkAuth(host, port)
+  if ( not(status) ) then
+    return stdnse.format_output(false, response)
+  end
+
+  local engine = brute.Engine:new(Driver, host, port)
+  engine.options.script_name = SCRIPT_NAME
+  local result
+  status, result = engine:start()
+  return result
+end