CVE-2023-48426 Chromecast Bootloader & Kernel-level code-execution including compromise of user-data

Critical 10.0 Published Updated

An attacker with physical UART access can bypass authentication to execute arbitrary code in the bootloader and kernel, compromising user data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-48426?

CVE-2023-48426 is a critical missing authorization vulnerability in Google Chromecast, published on 5 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

u-boot bug that allows for u-boot shell and interrupt over UART

Weakness: CWE-306

Which versions are affected by CVE-2023-48426?

It affects 1 product.

Products include Google Chromecast Firmware.

How do I fix CVE-2023-48426?

No fix has been published for CVE-2023-48426 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-48426 being exploited?

There is no known exploitation of CVE-2023-48426 in the wild and no public exploit code.

Sources

Also known as GHSA-g36v-5299-38pr.

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