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Cambiata key

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This commit is contained in:
Giulio De Pasquale 2017-05-26 12:04:11 +02:00
parent 10b01187a4
commit b758947a87
2 changed files with 28 additions and 33 deletions
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60
polictf/pasticciotto_local.cpp
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@ -78,44 +78,38 @@ int main(int argc, char *argv[]) {
0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c,
0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c, 0x2f, 0x2f, 0x5c,
0x2f, 0x2f, 0x5c, 0x2f, 0x20, 0x20, 0x20}; 0x2f, 0x2f, 0x5c, 0x2f, 0x20, 0x20, 0x20};
uint8_t a[] = {0x24, 0x00, 0x38, 0x08, 0x2f, 0x18,
0x3f, 0x40, 0x51, 0x5f, 0x53, 0x4e};
uint8_t b[] = "totallyrandom";
uint8_t *c = new uint8_t[12]; // PoLiCtF2017!
unsigned char bc[] = { unsigned char bc[] = {
0x50, 0x00, 0xde, 0xad, 0x50, 0x01, 0xb0, 0x0b, 0xc1, 0x00, 0x00, 0x00, 0x48, 0x00, 0xde, 0xad, 0x48, 0x01, 0xb0, 0x0b, 0xd4, 0x00, 0x00, 0x00,
0xc1, 0x02, 0x00, 0x01, 0x50, 0x00, 0xb0, 0x0b, 0x50, 0x01, 0xfa, 0xce, 0xd4, 0x02, 0x00, 0x01, 0x48, 0x00, 0xb0, 0x0b, 0x48, 0x01, 0xfa, 0xce,
0xc1, 0x04, 0x00, 0x00, 0xc1, 0x06, 0x00, 0x01, 0x50, 0x00, 0x00, 0x00, 0xd4, 0x04, 0x00, 0x00, 0xd4, 0x06, 0x00, 0x01, 0x48, 0x00, 0x00, 0x00,
0x4d, 0xda, 0x00, 0xd4, 0x20, 0x50, 0x04, 0x00, 0x00, 0x53, 0x04, 0x50, 0xd8, 0xd9, 0x00, 0xcb, 0x20, 0x48, 0x04, 0x00, 0x00, 0xde, 0x04, 0x48,
0x00, 0x00, 0x00, 0x50, 0x01, 0x02, 0x00, 0xd5, 0x04, 0xd5, 0x14, 0x4d, 0x00, 0x00, 0x00, 0x48, 0x01, 0x02, 0x00, 0x39, 0x04, 0x39, 0x14, 0xd8,
0x5b, 0x00, 0x87, 0x04, 0x86, 0x04, 0x01, 0x00, 0x8c, 0x42, 0x79, 0x2d, 0x5a, 0x00, 0x5c, 0x04, 0x05, 0x04, 0x01, 0x00, 0xd7, 0x42, 0x93, 0x2d,
0x00, 0x0e, 0x00, 0x00, 0x00, 0x0e, 0x01, 0x02, 0x00, 0x0e, 0x02, 0x04, 0x00, 0x22, 0x00, 0x00, 0x00, 0x22, 0x01, 0x02, 0x00, 0x22, 0x02, 0x04,
0x00, 0x0e, 0x03, 0x06, 0x00, 0xcd, 0x0a, 0x53, 0x01, 0x53, 0x02, 0x53, 0x00, 0x22, 0x03, 0x06, 0x00, 0x5d, 0xde, 0x01, 0xde, 0x02, 0xde, 0x03,
0x03, 0x83, 0x20, 0x83, 0x31, 0x50, 0x04, 0x00, 0x00, 0x50, 0x05, 0x00, 0x12, 0x20, 0x12, 0x31, 0x48, 0x04, 0x00, 0x00, 0x48, 0x05, 0x00, 0x00,
0x00, 0x53, 0x04, 0x86, 0x05, 0x6f, 0x62, 0x53, 0x05, 0xd4, 0x43, 0x25, 0xde, 0x04, 0x05, 0x05, 0x6f, 0x62, 0xde, 0x05, 0xcb, 0x43, 0x20, 0x04,
0x04, 0x04, 0x00, 0x86, 0x04, 0x65, 0x70, 0xd4, 0x53, 0x87, 0x07, 0xd5, 0x04, 0x00, 0x05, 0x04, 0x65, 0x70, 0xcb, 0x53, 0x5c, 0x07, 0x39, 0x57,
0x57, 0x53, 0x07, 0x6c, 0x45, 0x53, 0x04, 0xd4, 0x43, 0xb1, 0x04, 0x05, 0xde, 0x07, 0xb1, 0x45, 0xde, 0x04, 0xcb, 0x43, 0x36, 0x04, 0x05, 0x00,
0x00, 0x86, 0x04, 0x65, 0x70, 0x87, 0x05, 0x6c, 0x45, 0xd5, 0x24, 0xd4, 0x05, 0x04, 0x65, 0x70, 0x5c, 0x05, 0xb1, 0x45, 0x39, 0x24, 0xcb, 0x42,
0x42, 0x25, 0x04, 0x04, 0x00, 0x86, 0x04, 0x75, 0x72, 0xd4, 0x52, 0x87, 0x20, 0x04, 0x04, 0x00, 0x05, 0x04, 0x75, 0x72, 0xcb, 0x52, 0x5c, 0x07,
0x07, 0xd5, 0x57, 0x53, 0x07, 0x6c, 0x45, 0x53, 0x04, 0xd4, 0x42, 0xb1, 0x39, 0x57, 0xde, 0x07, 0xb1, 0x45, 0xde, 0x04, 0xcb, 0x42, 0x36, 0x04,
0x04, 0x05, 0x00, 0x86, 0x04, 0x73, 0x6e, 0x87, 0x05, 0x6c, 0x45, 0xd5, 0x05, 0x00, 0x05, 0x04, 0x73, 0x6e, 0x5c, 0x05, 0xb1, 0x45, 0x39, 0x34,
0x34, 0x87, 0x05, 0x87, 0x04, 0x86, 0x04, 0x01, 0x00, 0x2b, 0x04, 0x7f, 0x5c, 0x05, 0x5c, 0x04, 0x05, 0x04, 0x01, 0x00, 0xf4, 0x04, 0x7f, 0x93,
0x79, 0x6d, 0x00, 0x81, 0x02, 0x81, 0x13, 0x87, 0x03, 0x87, 0x02, 0x87, 0x6c, 0x00, 0x4e, 0x02, 0x4e, 0x13, 0x5c, 0x03, 0x5c, 0x02, 0x5c, 0x01,
0x01, 0xa9, 0x53, 0x01, 0x53, 0x02, 0x53, 0x03, 0xd4, 0x60, 0x50, 0x05, 0xbb, 0xde, 0x01, 0xde, 0x02, 0xde, 0x03, 0xcb, 0x60, 0x48, 0x05, 0x00,
0x00, 0x00, 0x83, 0x46, 0x2b, 0x04, 0x00, 0x78, 0x01, 0x01, 0x50, 0x06, 0x00, 0x12, 0x46, 0xf4, 0x04, 0x00, 0x38, 0xff, 0x00, 0x48, 0x06, 0x00,
0x00, 0x00, 0x86, 0x05, 0x01, 0x00, 0xd5, 0x65, 0x83, 0x46, 0x2b, 0x04, 0x00, 0x05, 0x05, 0x01, 0x00, 0x39, 0x65, 0x12, 0x46, 0xf4, 0x04, 0x00,
0x00, 0xcd, 0x80, 0xee, 0x00, 0xd4, 0x05, 0x87, 0x03, 0x87, 0x02, 0x87, 0xae, 0xed, 0x00, 0xcb, 0x05, 0x5c, 0x03, 0x5c, 0x02, 0x5c, 0x01, 0xbb};
0x01, 0xa9}; unsigned int bclen = 264;
unsigned int bclen = 266;
for (uint8_t i = 0; i < 12; i++) { unsigned char opcode_key[] = {0x48, 0x61, 0x76, 0x65, 0x46, 0x75, 0x6e,
c[i] = a[i] ^ b[i % 13]; 0x21, 0x50, 0x6f, 0x6c, 0x69, 0x43, 0x54,
} 0x46, 0x32, 0x30, 0x31, 0x37, 0x21};
printf("%s", banner); printf("%s", banner);
printf("\nHmmm...\n"); printf("\nHmmm...\n");
VM vm(c, bc, bclen); VM vm(opcode_key, bc, bclen);
vm.run(); vm.run();
return 0; return 0;
} }

1
polictf/res/client_opcode_key.txt Normal file
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@ -0,0 +1 @@
HaveFun!PoliCTF2017!