Zero-Click Calendar invite — Critical zero-click vulnerability chain in macOS
I found a zero-click vulnerability in macOS Calendar, which allows an attacker to add or delete arbitrary files inside the Calendar sandbox environment. This could lead to many bad things including malicious code execution which can be combined with security protection evasion with Photos to compromise users’ sensitive Photos iCloud Photos data. Apple has fixed all of the vulnerabilities between October 2022 and September 2023.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Bringing process injection into view(s): exploiting all macOS apps using nib files · Sector 7
In a previous blog post we described a process injection vulnerability affecting all AppKit-based macOS applications. This research was presented at Black Hat USA 2022, DEF CON 30 and Objective by the Sea v5. This vulnerability was actually the second universal process injection vulnerability we reported to Apple, but it was fixed earlier than the first. Because it shared some parts of the exploit chain with the first one, there were a few steps we had to skip in the earlier post and the presentations. Now that the first vulnerability has been fixed in macOS 13.0 (Ventura) and improved in macOS 14.0 (Sonoma), we can detail the first one and thereby fill in the blanks of the previous post. This vulnerability was independently found by Adam Chester and written up here under the name “DirtyNIB”. While the exploit chain demonstrated by Adam shares a lot of similarity to ours, our attacks trigger automatically and do not require a user to click a button, making them a lot more stealthy. Therefore we decided to publish our own version of this write-up as well.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
This write-up presents an exploit for a vulnerability in the XNU kernel: Assigned CVE-2023-32434. Fixed in iOS 16.5.1 and macOS 13.4.1. Reachable from the WebContent sandbox and might have been actively exploited. *Note that this CVE fixed multiple integer overflows, so it is unclear whether or not the integer overflow used in my exploit was also used in-the-wild. Moreover, if it was, it might not have been exploited in the same way. The exploit has been successfully tested on: iOS 16.3, 16.3.1, 16.4 and 16.5 (iPhone 14 Pro Max) macOS 13.1 and 13.4 (MacBook Air M2 2022) All code snippets shown below are from xnu-8792.81.2.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
New macOS vulnerability, Migraine, could bypass System Integrity Protection | Microsoft Security Blog
A new vulnerability, which we refer to as “Migraine” for its involvement with macOS migration, could allow an attacker with root access to automatically bypass System Integrity Protection (SIP) in macOS and perform arbitrary operations on a device
Zoom Patches High Risk Flaws on Windows, MacOS Platforms
Video messaging giant Zoom has released patches for multiple security vulnerabilities that expose both Windows and macOS users to malicious hacker attacks.
Read how macOS vulnerability in Archive Utility could lead to the execution of an unsigned and unnotarized application without displaying security prompts.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Zoom Patches High Risk Flaws on Windows, MacOS Platforms
Video messaging giant Zoom has released patches for multiple security vulnerabilities that expose both Windows and macOS users to malicious hacker attacks.
Read how macOS vulnerability in Archive Utility could lead to the execution of an unsigned and unnotarized application without displaying security prompts.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
