PT-2021-19016

Name of the Vulnerable Software and Affected Versions macOS versions prior to 12.1 macOS Big Sur versions prior to 11.6.2 Security Update versions prior to 2021-008 Catalina Description A malicious OSAX scripting addition may bypass Gatekeeper checks and circumvent sandbox restrictions. This issu...

CVE-2021-30990: Undefined Security Weakness

A logic issue was addressed with improved validation. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may bypass Gatekeeper checks...

CVE-2021-30950: Undefined Security Weakness

A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may bypass Gatekeeper checks...

CVE-2021-30861: Undefined Security Weakness

A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.0.1. A malicious application may bypass Gatekeeper checks...

CVE-2021-30976: Undefined Security Weakness

A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may bypass Gatekeeper checks...

CVE-2021-30975: Incorrect Authorization

This issue was addressed by disabling execution of JavaScript when viewing a scripting dictionary. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious OSAX scripting addition may bypass Gatekeeper checks and circumvent sandbox...

CVE-2021-30853: Out-of-bounds Write

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks...

New AdLoad Variant Bypasses Apple's Security Defenses to Target macOS Systems

A new wave of attacks involving a notorious macOS adware family has evolved to leverage around 150 unique samples in the wild in 2021 alone, some of which have slipped past Apple's on-device malware scanner and even signed by its own notarization service, highlighting the malicious software ongoi...

Apple Releases Urgent 0-Day Bug Patch for Mac, iPhone and iPad Devices

Apple on Monday rolled out an urgent security update for iOS, iPadOS, and macOS to address a zero-day flaw that it said may have been actively exploited, making it the thirteenth such vulnerability Apple has patched since the start of this year. The updates, which arrive less than a week after th...

OSX.XLoader hides little except its main purpose: What we learned in the installation process

Last week, Check Point Research described a new Mac variant of malware they call XLoader. It was identified as being the successor of something called Formbook, a very prevalent threat in the Windows world. According to Check Point, the Mac version of the malware is being "rented" as part of a...

Apple macOS 安全特征问题漏洞

Apple macOS is a specialized operating system developed by Apple Inc. for Mac computers. A security signature issue vulnerability exists in macOS that stems from a logic error in AppleScript. Native applications can bypass Gatekeeper checks. The vulnerability allows native applications to bypass...

PT-2021-18794

Name of the Vulnerable Software and Affected Versions macOS versions prior to Big Sur 11.4 Security Update versions prior to 2021-003 Catalina Security Update versions prior to 2021-004 Mojave Description A logic issue was addressed with improved state management, allowing a malicious application...

About the security content of macOS Big Sur 11.4

About the security content of macOS Big Sur 11.4 This document describes the security content of macOS Big Sur 11.4. About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases...

About the security content of Security Update 2021-003 Catalina

About the security content of Security Update 2021-003 Catalina This document describes the security content of Security Update 2021-003 Catalina. About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has...

Metasploit Wrap-Up

Stopped at the gate? A fun new module from timwr, taking advantage of a technique reported by Cedric Owens, is reminding everyone if there is no fence a gate will not deter us. The new module provides a quick wrapper for payloads that bypasses download origination and authorization requirements...

macOS Gatekeeper Check Bypass Exploit

This Metasploit module serves an OSX app as a zip that contains no Info.plist, which bypasses gatekeeper in macOS versions prior to 11.3. If the user visits the site on Safari, the zip file is automatically extracted, and clicking on the downloaded file will automatically launch the payload. If t...

macOS Gatekeeper Check Bypass

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'macOS Gatekeeper check bypass', 'Description' = %q This module serves an OSX app as a zip that contains no Info.plist, which bypasses gatekeeper ...

Serious MacOS Vulnerability Patched

Apple just patched a MacOS vulnerability that bypassed malware checks. The flaw is akin to a front entrance thats barred and bolted effectively, but with a cat door at the bottom that you can easily toss a bomb through. Apple mistakenly assumed that applications will always have certain specific...

Apple Patches Zero-Day MacOS Bypass Bug

Apple patched a zero-day vulnerability in its MacOS that can bypass critical anti-malware capabilities and which a variant of the notorious Mac threat Shlayer adware dropper already has been exploiting for several months. Security researcher Cedric Owens first discovered the vulnerability, tracke...

Hackers Exploit 0-Day Gatekeeper Flaw to Attack macOS Computers

Security is only as strong as the weakest link. As further proof of this, Apple released an update to macOS operating systems to address an actively exploited zero-day vulnerability that could circumvent all security protections, thus permitting unapproved software to run on Macs. The macOS flaw,...