iOS 4 Jailbreak Method Brings Security Concerns [Updated]

160048 jailbreakme on os x

There is renewed concern today over iOS security after a website-based jailbreaking tool was released for iOS 4 for iPhone and iPod touch and iOS 3.2 for iPad.

While the jailbreak appears to be a relatively benevolent attack against a security hole in iOS, concern remains that there is a yet-unpatched and largely unidentified security vulnerability in iOS that hackers could use in a similar way to remotely plant malware on an unsuspecting victim's device.

Multiple reports suggest that the jailbreak method attacks a flaw in the iOS PDF viewer in order to gain access to the device, however the principal developer of the project "comex" writes via his Twitter account that he is wondering "how long until someone figures out the actual bug I'm exploiting."

A similar jailbreak method was devised for iPhone OS 1.1.1, where developers even fixed the targeted bug after the jailbreak was complete.

Update: More technical details have emerged regarding the security hole that is being exploited in order for the jailbreak to be performed. The remote website presents a PDF that has a specifically crafted font embedded, and it is the processing of the embedded font that has the security issue. Interestingly, Apple had fixed a very similar issue in MacOS with Security Update 2010-003.

Related Forum: iPhone

Popular Stories

iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Rumored to Use Same Rear Chassis as iPhone 16

Friday July 19, 2024 7:16 am PDT by
Apple will adopt the same rear chassis manufacturing process for the iPhone SE 4 that it is using for the upcoming standard iPhone 16, claims a new rumor coming out of China. According to the Weibo-based leaker "Fixed Focus Digital," the backplate manufacturing process for the iPhone SE 4 is "exactly the same" as the standard model in Apple's upcoming iPhone 16 lineup, which is expected to...
iPhone 16 Pro Sizes Feature

iPhone 16 Series Is Just Two Months Away: Everything We Know

Monday July 15, 2024 4:44 am PDT by
Apple typically releases its new iPhone series around mid-September, which means we are about two months out from the launch of the iPhone 16. Like the iPhone 15 series, this year's lineup is expected to stick with four models – iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max – although there are plenty of design differences and new features to take into account. To bring ...
bsod

Crowdstrike Says Global IT Outage Impacting Windows PCs, But Mac and Linux Hosts Not Affected

Friday July 19, 2024 3:12 am PDT by
A widespread system failure is currently affecting numerous Windows devices globally, causing critical boot failures across various industries, including banks, rail networks, airlines, retailers, broadcasters, healthcare, and many more sectors. The issue, manifesting as a Blue Screen of Death (BSOD), is preventing computers from starting up properly and forcing them into continuous recovery...
iphone 14 lineup

Cellebrite Unable to Unlock iPhones on iOS 17.4 or Later, Leak Reveals

Thursday July 18, 2024 4:18 am PDT by
Israel-based mobile forensics company Cellebrite is unable to unlock iPhones running iOS 17.4 or later, according to leaked documents verified by 404 Media. The documents provide a rare glimpse into the capabilities of the company's mobile forensics tools and highlight the ongoing security improvements in Apple's latest devices. The leaked "Cellebrite iOS Support Matrix" obtained by 404 Media...
Apple Watch Series 9

2024 Apple Watch Lineup: Key Changes We're Expecting

Tuesday July 16, 2024 7:59 am PDT by
Apple is seemingly planning a rework of the Apple Watch lineup for 2024, according to a range of reports from over the past year. Here's everything we know so far. Apple is expected to continue to offer three different Apple Watch models in five casing sizes, but the various display sizes will allegedly grow by up to 12% and the casings will get taller. Based on all of the latest rumors,...
tinypod apple watch

TinyPod Turns Your Apple Watch Into an iPod

Wednesday July 17, 2024 3:18 pm PDT by
If you have an old Apple Watch and you're not sure what to do with it, a new product called TinyPod might be the answer. Priced at $79, the TinyPod is a silicone case with a built-in scroll wheel that houses the Apple Watch chassis. When an Apple Watch is placed inside the TinyPod, the click wheel on the case is able to be used to scroll through the Apple Watch interface. The feature works...