iOS 14.4

Ian Beer publishes PoC that could allow arbitrary code execution on iOS 14.4-14.5.1

Matrix code hacked iPhone.

Modern jailbreak tools like Taurine and unc0ver can currently jailbreak all iOS & iPadOS 14 devices running up to and including iOS & iPadOS 14.3. It’s been quite a while since any of these tools have picked up support for new firmware, but there’s always the very real possibility that these tools could add support for new firmware in the future.

Fortunately for those whose devices are operating on iOS or iPadOS 14.4 through 14.5.1, there just might be some hope. Renowned security researcher Ian Beer of Google Project Zero has just released documentation of what appears to be a kernel-level proof of concept (PoC) impacting up to and including iOS & iPadOS 14.5.1.

Apple halts downgrades to iOS 14.4 after releasing iOS 14.4.1

Apple released iOS & iPadOS 14.4.1 last Monday alongside similar updates for macOS and watchOS with security vulnerability patches. But as many already know with Apple’s rather frequent software updates, it’s never long after a release before the company stops signing the previous version of its mobile operating system(s).

Such is the case with iOS & iPadOS 14.4, which Apple stopped officially signing just this evening. This move on the Cupertino-based tech giant’s part means that iPhone, iPad, and even iPod touch users will no longer be able to downgrade their firmware from iOS or iPadOS 14.4.1 to the older iOS or iPadOS 14.4 release.

Apple no longer signing iOS 14.3 following release of iOS 14.4

Apple just last week released iOS & iPadOS 14.4 to the general public with new features, bug fixes, and niche improvements, and as you might come to expect from the Cupertino-based tech company after having released a software update, the previous iOS & iPadOS 14.3 firmware is no longer being signed.

Apple closed the iOS & iPadOS 14.3 signing window just this evening, a move on the company’s behalf that prevents iPhone, iPad, and iPod touch users from being able to downgrade their handset’s firmware from the newer iOS & iPadOS 14.4 release. This should come as no surprise to anyone, as Apple generally follows this rhythm of signing and un-signing after each software update it launches, no matter how large or how small.