For example, this research informed the generic detection of behavior associated with this vulnerability, enabling Defender for Endpoint to immediately provide visibility and protection against exploits even before the patch is applied. The discoveries and insights from our research enrich our protection technologies and solutions, such as Microsoft Defender for Endpoint, which allows organizations to gain visibility to their networks that are increasingly becoming heterogeneous. Microsoft security researchers continue to monitor the threat landscape to discover new vulnerabilities and attacker techniques that could affect macOS and other non-Windows devices. This shows that even as macOS or other operating systems and applications become more hardened with each release, software vendors like Apple, security researchers, and the larger security community, need to continuously work together to identify and fix vulnerabilities before attackers can take advantage of them.
#New mac os update#
In fact, during this research, we had to update our proof-of-concept (POC) exploit because the initial version no longer worked on the latest macOS version, Monterey. It was also through our examination of one of the latest fixes that we came across this bug. It should be noted that other TCC vulnerabilities were previously reported and subsequently patched before our discovery.
#New mac os install#
For example, the attacker could hijack an app installed on the device-or install their own malicious app-and access the microphone to record private conversations or capture screenshots of sensitive information displayed on the user’s screen. If exploited on unpatched systems, this vulnerability could allow a malicious actor to potentially orchestrate an attack based on the user’s protected personal data. We discovered that it is possible to programmatically change a target user’s home directory and plant a fake TCC database, which stores the consent history of app requests.
#New mac os full#
To protect TCC, Apple introduced a feature that prevents unauthorized code execution and enforced a policy that restricts access to TCC to only apps with full disk access.
Introduced by Apple in 2012 on macOS Mountain Lion, TCC is essentially designed to help users configure the privacy settings of their apps, such as access to the device’s camera, microphone, or location, as well as access to the user’s calendar or iCloud account, among others. We encourage macOS users to apply these security updates as soon as possible. Apple released a fix for this vulnerability, now identified as CVE-2021-30970, as part of security updates released on December 13, 2021. We shared our findings with Apple through Coordinated Vulnerability Disclosure (CVD) via Microsoft Security Vulnerability Research (MSVR).
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