Editing Vulnerabilities
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==== Jak X: Combat Racing ==== | ==== Jak X: Combat Racing ==== | ||
===== Custom code injection via patch.bin file ===== | ===== Custom code injection via patch.bin file ===== | ||
The game savedata contains a file named patch.bin whose aim is to be loaded at address 0x00C00000 then executed. There is no protection except a CRC32 checksum (with 0xEDB88320 polynomial) and a sort of obfuscated (yet to be understood) format for the patch data. | The game savedata contains a file named patch.bin whose aim is to be loaded at address 0x00C00000 then executed. There is no protection except a CRC32 checksum (with 0xEDB88320 polynomial) and a sort of obfuscated (yet to be understood) format for the patch data. | ||
The patch.bin file must contain a little-endian header of 16 bytes followed by patch data of arbitrary size. | The patch.bin file must contain a little-endian header of 16 bytes followed by patch data of arbitrary size. |