The security patch they are often underestimated when compared to actual system updates, yet they are a crucial element in guaranteeing users the protection of personal data from any cyber attacks e internal security holes; even a tech giant like Samsung can make mistakes on a large scale.
This is what is deduced from the paper academic drafted by two researchers of theTel Aviv universityby title “Trust Dies in Darkness: Shedding Light on Samsung’s TrustZone Keymaster Design“, Which explains in detail the flaw that has struck further 100 million of Samsung smartphones, including:
The complete document, freely availablegoes into detail with the characteristics of the encryption techniques used in smartphones Samsung architecture-based ARMIn essence, the researchers used a reverse engineering practice to locate a flaw in the cryptographic key management area Keymasterwhich protects a range of sensitive data including passwords, and exploits it to bypass an authentication mechanism.
The simulated attack in the study affects precisely the keys (so-called “blobs”), which Samsung did not protect with a encryption level adequate. The decryption of the keys thus becomes relatively easy, making these models highly vulnerable to cyber attacks, as has been shown in recent times by other “proof-of-concept” experiments, ie simulated in a controlled environment to demonstrate this type of flaw.
There good news for the millions of users who own one of these terminals is that Samsung she realized of this flaw months ago. The manufacturer does not have a sure way of determining how many terminals are left with a version of Android that contains this security flaw, but it has promptly provided a solution to devices still supported with a series of security patch between August and October 2021.
There is therefore no need to be alarmed, at least if you own a smartphone anymore recent: the invitation is always the one a keep up to date their devices, regardless of incidents like this.
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