A New Era of macOS Sandbox Escapes: Diving into an Overlooked Attack Surface and Uncovering 10+ New Vulnerabilities
This is a blog post for my presentation at the conference POC2024. The slides are uploaded here.
In the macOS system, most processes are running in a restricted sandbox environment, whether they are Apple’s own services or third-party applications. Consequently, once an attacker gains Remote Code Execution (RCE) from these processes, their capabilities are constrained. The next step for the attacker is to circumvent the sandbox to gain enhanced execution capabilities and broader file access permissions.
But how to discover sandbox escape vulnerabilities? Upon reviewing the existing issues, I unearthed a significant overlooked attack surface and a novel attack technique. This led to the discovery of multiple new sandbox escape vulnerabilities: CVE-2023-27944, CVE-2023-32414, CVE-2023-32404, CVE-2023-41077, CVE-2023-42961, CVE-2024-27864, CVE-2023-42977, and more.
Health care breaches lead to legislation
Highlights of the new standard include:
In the last few days, many Tor relay operators - mainly hosting relay nodes on providers like Hetzner - began receiving abuse notices.
All the abuses reported many failed SSH login attempts - part of a brute force attack - coming from their Tor relays.
Tor relays normally only transport traffic between a guard and an exit node of the Tor network, and per-se should not perform any SSH connections to internet-facing hosts, let alone performing SSH brute force attacks.
Since August 2023, Microsoft has observed intrusion activity targeting and successfully stealing credentials from multiple Microsoft customers that is enabled by highly evasive password spray attacks. Microsoft has linked the source of these password spray attacks to a network of compromised devices we track as CovertNetwork-1658, also known as xlogin and Quad7 (7777). Microsoft is […]