Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Endpoint

6/25/2018
12:50 PM
50%
50%

iOS Hack Lets Attackers Brute Force iPhone, iPad Passcodes

A vulnerability in Apple's iOS lets anyone with a Lightning cable bypass the passcode entry restriction designed to protect the company's devices.

Any hacker equipped with the right knowledge and a Lightning cable can bypass iOS's passcode entry restriction and break into an iPhone or iPad, researcher Matthew Hickey has discovered.

Hickey, co-founder of Hacker House, found a means of bypassing systemwide encryption and secure enclaves that Apple introduced to block brute-force attacks. Secure enclaves, a hardware security measure built for cryptographic processes and biometric data protection, work with the newest iOS software to delay incorrect passcode attempts. The more times someone enters an incorrect passcode, the longer the iOS blocks future attempts to enter the device.

In a report on ZDNet, Hickey explains how an attacker can bypass this security restriction by connecting the device to a Lightning cable and entering one long string of passcodes via keyboard input. He later reported this works because not all tested passcodes are sent to the secure enclave. Even when 20 or more passcodes are entered, only four or five might be sent to the enclave for testing.

This type of attack may not be usable in iOS 12 when Apple rolls out USB Restricted Mode, a new security measure designed to prevent break-ins by turning the Lightning cable into a charge-only port if the device hasn't recently been unlocked. The update is a source of frustration for digital forensics firms like Grayshift, which claims to have defeated it.

Read more details here.

Why Cybercriminals Attack: A DARK READING VIRTUAL EVENT Wednesday, June 27. Industry experts will offer a range of information and insight on who the bad guys are – and why they might be targeting your enterprise. Go here for more information on this free event.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
BradleyRoss
50%
50%
BradleyRoss,
User Rank: Moderator
6/28/2018 | 8:11:23 PM
Re: Patch Release...stat
It appears that the specific approach mentioned in this article doesn't work at unlocking the device, although Cellebrite, GrayShift (GrayKey) and a few others have developed hacks that apparently test a passcode and then interrupt the process before the counter of consecutive failed passcodes is incremented.  It would seem to me that the problem could be resolved by incrementing the counter before testing the passcode.  I have doubts about blocking the USB data because I don't think that would really close the vulnerabilities.
RyanSepe
50%
50%
RyanSepe,
User Rank: Ninja
6/25/2018 | 1:28:12 PM
Patch Release...stat
This needs to be mitigated as soon as possible. This essentially means that if an iDevice is to be stolen a malicious actor can easily pass tons of data without any kind of hindrance to try and get in.
Florida Town Pays $600K to Ransomware Operators
Curtis Franklin Jr., Senior Editor at Dark Reading,  6/20/2019
Pledges to Not Pay Ransomware Hit Reality
Robert Lemos, Contributing Writer,  6/21/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Building and Managing an IT Security Operations Program
As cyber threats grow, many organizations are building security operations centers (SOCs) to improve their defenses. In this Tech Digest you will learn tips on how to get the most out of a SOC in your organization - and what to do if you can't afford to build one.
Flash Poll
The State of IT Operations and Cybersecurity Operations
The State of IT Operations and Cybersecurity Operations
Your enterprise's cyber risk may depend upon the relationship between the IT team and the security team. Heres some insight on what's working and what isn't in the data center.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-12960
PUBLISHED: 2019-06-25
LiveZilla Server before 8.0.1.1 is vulnerable to SQL Injection in functions.internal.build.inc.php via the parameter p_dt_s_d.
CVE-2019-12961
PUBLISHED: 2019-06-25
LiveZilla Server before 8.0.1.1 is vulnerable to CSV Injection in the Export Function.
CVE-2019-12962
PUBLISHED: 2019-06-25
LiveZilla Server before 8.0.1.1 is vulnerable to XSS in mobile/index.php via the Accept-Language HTTP header.
CVE-2019-12963
PUBLISHED: 2019-06-25
LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the chat.php Create Ticket Action.
CVE-2019-12964
PUBLISHED: 2019-06-25
LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.