These days it seems that the past memories of trying to get a jailbreak at any cost seem to have returned to the present. Words like exploits, vulnerabilities, and the differences between hardware and software are present in most articles that talk about Cydia and the types of jailbreaks that exist. However, not all that glitters is gold ... and more so when Apple appears in the middle. Yesterday the final version of iOS and iPadOS 13.5.1 was publicly released, which eliminates the vulnerability of the unc0ver jailbreak. In this way we return to the starting point: iOS 13.5.1 is a system without vulnerabilities until proven otherwise.
Apple fires on iOS 13.5.1. the vulnerability exploited by unc0ver
Apple dedicates a part of its website specifically to analyze security updates that releases with every major update. Yesterday iOS 13.5.1 and its respective version of iPadOS were released publicly with important security news. On their website we can see that the vulnerability they have made disappears is the one discovered by the team behind unc0ver, the semi-tethered jailbreak available from iOS 11 to iOS 13.5.
Kernel vulnerability.
Available for: iPhone 6s and later, iPad Air2 and later, iPad mini 4 and later, and 7th generation iPod touch.
Impact: An application may run arbitrary code with kernel privilege.
Description: A memory consumption problem was solved by improving memory handling.
After the official launch of the new version of iOS pwn20wnd, one of the developers of unc0ver, assured in his Twitter account that he could confirm that the exploit used by the tool had been patched in the new version of iOS. If you want to keep the possibility of jailbreak you are still on time since Apple still signs the version of iOS 13.5, so you could do the downgrade easily.
I can confirm the new * OS updates have patched the kernel vulnerability used by the # unc0ver jailbreak.
If you are on iOS 13.5, stay and save blobs.
If you are not on iOS 13.5, update to it with the IPSW using a computer while it is still being signed and save blobs.
- @ Pwn20wnd (@ Pwn20wnd) June 1, 2020
checkra1n.