2 min read

Patch your iPhones and Macs against "actively exploited" zero-day right now

Graham CLULEY

July 27, 2021

Ad One product to protect all your devices, without slowing them down.
Free 90-day trial
Patch your iPhones and Macs against "actively exploited" zero-day right now

If you're the owner of an iPhone, iPad, or Apple Mac you should update your system right now.

Apple has released a major security update for its devices, after finding a zero-day flaw that the company indicates has been the focus of in-the-wild attacks by hackers, and might have been used to plant malware.

As is its wont, Apple has not released any real details about the flaw, presumably in an attempt to reduce the chances of other parties exploiting the security vulnerability.

According to a security advisory published on Apple's website, the flaw - technically known as CVE-2021-30807 -  was reported to the firm by an anonymous researcher, and involves a memory corruption flaw
in the IOMobileFrameBuffer kernel extension used for managing the screen framebuffer, that can be abused to execute arbitrary code on a device with kernel privileges.

If a malicious hacker's code successfully gains kernel privileges it seizes God-like control over the device.

What makes things all the more serious is Apple's warning that the security flaw has been used in real-world attacks:

“Apple is aware of a report that this issue may have been actively exploited.”

Proof-of-concept code to exploit the flaw has been published on Twitter

Users are advised to update to the latest versions of iOS (14.7.1), iPadOS (14.7.1), and macOS (11.5.1) to protect against the issue.

Another security researcher, Saar Amar, claims to have also uncovered the vulnerability four months ago, although he had not yet reported it to Apple as he was still working on methods to exploit the flaw. Amar described the vulnerability as being "as trivial and straightforward as it can get."

With details of how to exploit the vulnerability published in the wild, and Apple's claims that it has been actively exploited, there really is no time to wait - everyone should update their Apple devices.

To update your Mac or MacBook, choose System Preferences from the Apple menu in the top-left of the screen. Then click Software Update to see if any updates are available and follow instructions.

If your iPhone or iPad has not yet installed the latest security update, open Settings, and choose General > Software Update and follow instructions.

tags


Author



Right now

Top posts

What is medical identity theft and how to protect against it

What is medical identity theft and how to protect against it

July 27, 2022

2 min read
Curious about Omegle? Here’s how the roulette-style chat platform can threaten your online privacy and security

Curious about Omegle? Here’s how the roulette-style chat platform can threaten your online privacy and security

July 07, 2022

5 min read
Identifying and Dealing with Online Bullying Is Not Impossible - School Presentation Inside

Identifying and Dealing with Online Bullying Is Not Impossible - School Presentation Inside

June 28, 2022

2 min read
Let’s Celebrate World Social Media Day by Improving Your Privacy and Security Online

Let’s Celebrate World Social Media Day by Improving Your Privacy and Security Online

June 28, 2022

3 min read
Bitdefender Reveals the Top Cyber Threats Faced by Consumers in 2021

Bitdefender Reveals the Top Cyber Threats Faced by Consumers in 2021

June 22, 2022

1 min read
Scam alert: Cybercrooks use shady investment domain to scam keen investors out of money and data

Scam alert: Cybercrooks use shady investment domain to scam keen investors out of money and data

May 24, 2022

3 min read

FOLLOW US ON

SOCIAL MEDIA


You might also like

Chinese criminals scam kids desperate to play games for more than three hours a week Chinese criminals scam kids desperate to play games for more than three hours a week
Graham CLULEY

August 12, 2022

2 min read
Sophisticated Smishing Attack on Twilio Leads to Employee Credential Leak and Data Breach Sophisticated Smishing Attack on Twilio Leads to Employee Credential Leak and Data Breach
Silviu STAHIE

August 09, 2022

1 min read
Attackers Hit German Chambers of Industry and Commerce; All Digital Services Down Attackers Hit German Chambers of Industry and Commerce; All Digital Services Down
Silviu STAHIE

August 05, 2022

1 min read