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38 lines
975 B
Lua
38 lines
975 B
Lua
local shortport = require "shortport"
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local stdnse = require "stdnse"
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local libssh2 = stdnse.silent_require "libssh2"
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description = [[
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Returns authenication methods a ssh server supports.
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]]
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---
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-- @usage
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-- nmap -p 22 --script ssh-auth-methods --script-args="ssh.user=<username>" <target>
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--
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-- @output
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-- 22/tcp open ssh syn-ack
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-- | ssh-auth-methods:
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-- | Supported authentication methods:
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-- | publickey
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-- |_ password
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author = "Devin Bjelland"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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local username = stdnse.get_script_args("ssh.user") or stdnse.generate_random_string(5)
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portrule = shortport.port_or_service(22, 'ssh')
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categories = {"safe"}
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action = function (host, port)
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local result = stdnse.output_table()
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local session = libssh2.session_open(host, port.number)
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local authmethods = libssh2.userauth_list(session, username)
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result["Supported authentication methods"] = authmethods
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return result
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end
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