Sunday, September 25, 2005

Firmware v2.0 Exploit Found

- First some older news:
- An exploit has been found in Sony's PSP firmware v2.0. They use the "libtiff" code for the Image Viewer which has a known bug that allows a small peice of binary code to be executed from an image file.
- It seems all you have to do is have the specially formatted image on your Memory Stick and open it in the Image Viewer. Right now, all that happens is the screen is filled with blue since this is really just a proof of concept. Even so, this is still the first homebrew code running on a v2.0 PSP and is a sign of things to come.
- And now some newer developments:
- The same people who found the v2.0 buffer overflow exploit have developed a way to execute a binary file from the Memory Stick root directory.
- "Binary Loader v0.2 For PSP 2.0" is the name and it will load binary files up to 64k, which means it won't load homebrew ELF files yet.
- Two other bits of code have turned up: "Hello World v1 For PSP v2.0" by groepaz and a "Scrolling Starfield Demo For 2.0 PSP".

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