Two Years Later, Apple iOS VPNs Are Nonetheless Leaking IP Addresses • Register


Apple has left the VPN bypass vulnerability in iOS undetected for at the very least two years, figuring out IP site visitors knowledge, and there’s no signal of a repair.

In early 2020, safe mail supplier ProtonVPN reported a flaw in Apple’s iOS model 13.3. The problem was that the working system failed to shut the prevailing connection.

This might doubtlessly permit an attacker to determine the supply IP tackle of the VPN consumer. For these counting on really hiding that knowledge to keep away from the eye of an oppressive regime or somebody searching for non-public data, that is no minor concern.

On the time ProtonMail stated that Apple was conscious of the difficulty and that Cupertino was taking a look at mitigation choices. Apple has a workaround for enterprise customers with company-managed units, which is at all times over a VPN. However it’s not an choice for customers or others with self-managed units.

ProtonMail revised its March 25, 2020 put up each few months, to notice that later iOS variations 13.4, 13.5, 13.6, 13.7 and 14 all left the vulnerability unchanged. The corporate’s final replace is on October 19, 2020.

repair leaks or not

Earlier this yr, Michael Horowitz, a veteran software program developer and marketing consultant, revisited the scenario and located that VPNs on iOS are nonetheless weak and leaking knowledge.

“VPNs on iOS are damaged,” he wrote in an August 5 replace to a Could 25 put up “VPN on iOS is a rip-off.” “At first, they appear to work fantastic. The iOS machine will get a brand new public IP tackle and new DNS server. The information is distributed to the VPN server.”

“However, over time, an in depth inspection of the info leaving the iOS machine reveals that the VPN tunnel has leaked. The information leaves the iOS machine out of the VPN tunnel. This isn’t a traditional/legacy DNS leak, it’s The information is leaked.”

His put up contains router log knowledge that demonstrates knowledge leakage.

Then ten days in the past, Horowitz up to date his put up to substantiate that iOS 15.6 – Apple’s newest iOS launch in case you do not rely the 15.6. – Nonetheless weak.

useless silence

register Requested Apple for remark and the corporate didn’t reply, which is completely not anticipated.

Apple’s longstanding resistance to participating with the general public, press, and safety neighborhood, to overtly reply to issues, and to supply standing updates about excellent points permits such points to flare up – So long as the general public noise isn’t so loud, it can’t be ignored. It is the identical bunker-mented communications coverage that allowed the corporate to plan a CSAM scanning plan for iCloud, which flew in its face when the general public received wind of the thought.

His put up first popped up when Horowitz reported emailing Apple concerning the VPN knowledge leak in Could. In July, he wrote, “Since then, there have been a number of emails between me and the corporate (sure, plain outdated unencrypted e mail – no safety in any respect). To this point, virtually 5 weeks later, Apple has stated virtually nothing. Me. They have not stated whether or not they’ve tried to recreate the issue. They have not stated whether or not they agree on it being a bug. They have not stated something about fixing it.”

What’s extra, Horowitz says that Yegor Sak, co-founder of VPN service Windscribe, contacted him to say that his firm is conscious of the info leak and has submitted a number of studies to Apple.

When safety agency Sophos famous ProtonMail’s put up again in March 2020, author John Dunn noticed, “At the least Apple is aware of concerning the subject.” Two and a half years later, Apple’s consciousness appears indistinguishable from ignorance.



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