In a previous post, we detailed a vulnerability in the Amlogic System-On-Chip bootROM that allows arbitrary code execution at EL3. Since the Chromecast with Google TV (CCwGTV) is one of the devices affected by this issue, it opens the possibility to run a custom OS like Ubuntu.

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In previous posts, we explained how to reverse the USB stack in the Exynos bootROM, which led to the discovery of a critical bug. After reproducing this methodology on Amlogic bootROM recently dumped, a similar vulnerability has been discovered in the USB stack that can be exploited to run arbitrary …

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