Apple has release a new batch of security updates and has fixed three iOS zero-days that 'may have been actively exploited' by attackers.
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The three zero-days
Two of the zero-day vulnerabilities (CVE-2021-1870 and CVE-2021-1871) are logic issues affecting the WebKit browser engine, which may allow a remote attacker to achieve code execution on devices running a vulnerable version of iOS or iPadOS (i.e., those prior to version 14.4).
The third zero-day (CVE-2021-1782) affects the operating systems' kernel. It is a race condition that can be exploited by a malicious application to elevate privileges on a vulnerable iPhone or iPad. CVE-2021-1782 also affects watchOS and tvOS, and has been fixed in the released updates (watchOS 7.3 and tvOS 14.4).
An anonymous researcher has been credited with the reporting of all three flaws.
As per usual, Apple has decided not to share specific details about the flaws or the attack(s) they might be used for.
Zero-days exploited
Presumably, the attackers are using one or both of the WebKit flaws to execute an initial malicious payload on targeted devices, then the kernel vulnerability to achieve the necessary privileges to completely compromise the device and spy on targets' activities.
It's unknown whether the attacks are targeted or widespread. Apple has noted that additional details will be available soon. In the meantime, users are advised to update their devices to plug the exploited iOS zero-days.
In the last six months, similar iOS zero-days have been leveraged in targeted attacks flagged by the Google Threat Analysis Group (TAG) and Citizen Lab. The latter found them being used to install NSO Group's Pegasus spyware.
Apple has also released a security update for iCloud for Windows that fixes four vulnerabilities that may lead to arbitrary code execution or heap corruption, and Xcode, its integrated development environment for macOS, which fixes a path handling issue that could allow a malicious application to access arbitrary files on the host device while running an app that uses on-demand resources with Xcode.
Ready or not: macOS® Big Sur is here! While the much-anticipated OS release introduces quite a few changes, the most significant one for Mac® administrators is that Apple®'s MDM protocol is now the only way to manage Mac devices running Big Sur and later versions.
If it inspires feelings of panic, it's justified: Unless you enroll end user devices running Big Sur into an Apple MDM, you'll lose the ability to do essential tasks that we'll cover in this blog. You can ease your worries by enrolling in JumpCloud MDM today in minutes, and get your questions answered by JumpCloud's MDM lead when you sign up now to join Office Hours on Friday, November 13th.
Don't Lose Control Over Macs Running Big Sur
Mac admins should have total control over how Big Sur and any OS update are introduced at their organization. But there are certain changes with macOS Big Sur that will have an impact on device management and security that an MDM solution may or may not be able to assist with.
If your end user Mac computers are not enrolled in an Apple MDM, then you'll lose control over things like being able to silently deliver and install configuration profiles on devices. JumpCloud's MDM-powered policies are how admins deploy configuration profiles to Mac computers running Big Sur and following versions, without end user interaction, for critical Mac controls like:
- Lock Screen: The end user's screen saver will lock after the amount of seconds specified, and a password will be required to unlock the screen saver.
- FileVault: Remotely enforce FileVault on macOS devices and easily view Recovery Keys in your JumpCloud Admin Portal. FileVault full-disk encryption (FileVault 2) helps prevent unauthorized access to the information on your user's startup disks.
- Disable USB: Prevent mounting of external storage devices, including USB and SD flash devices.
Only with MDM can you also customize your Mac computer controls with the JumpCloud MDM Custom Configuration Profile Policy, which lets you upload and distribute MDM configuration profiles (.mobilconfig files) to enrolled devices, to deliver payloads for certificates, kernel extensions, privacy preferences, WiFi, and more.
Enrolling in JumpCloud MDM also enables you to choose when macOS Big Sur is introduced at your organization.
And coming soon: JumpCloud is building a new policy that will give you the ability to get around Big Sur's perilous change to device screen sharing and recording. Out-of-the-box macOS Big Sur computers by default will not let non-admin users permit an application like Zoom or Google Meeting to share or record their screen; devices that upgrade to BigSur maintain existing screen sharing permissions. If you're an admin, you can expect a surge of help tickets when end users encounter this. Or, you can avoid that hassle with this soon-to-be-released policy for enrolled devices.
Don't Let Big Sur Macs Go Unguarded
Whether you're on a large IT team or a team of one, you need to be able to rapidly secure end user Macs in the event they're stolen or misplaced. If Big Sur Macs aren't enrolled in JumpCloud MDM, you will lose your ability to protect the sensitive corporate data devices may contain.
JumpCloud MDM's point-and-click security commands enable admins to restart, shut down, lock, or even wipe Macs remotely, so you have supervision over device security at scale and wherever employees work. Neko drift! mac os.
How Can You Enroll in JumpCloud MDM?
Hopefully this is the question you're asking if you've read this far.
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There's a JumpCloud policy to easily enroll one or many Mac computers into JumpCloud MDM, so you can begin to manage and secure all the Macs at your organization. It really is that simple to implement.
What about the end user experience? Housebreakout mac os. With JumpCloud's device-native Mac Application, managed end users follow a simple workflow to remotely enroll in JumpCloud MDM and make their devices available to receive configurations and security commands.
Try Before You Buy
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Need the ability to remotely secure and configure Mac computers, from wherever you're working to anywhere the devices are? Naturally. All of this Mac management alongside Windows® and Linux®, too? That's right!
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There's no shortage of MDM services to choose from, but not all MDMs enable admins to achieve what you can do with JumpCloud MDM. With JumpCloud's directory platform, you can conquer more tasks with a single solution.
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But before you buy, try it out: Set up a JumpCloud Free account and unlock access to the full platform to evaluate with up to 10 users and 10 devices. Plus, you'll get free premium chat support with technical experts for your first 10 days of use.
