CVE-2021-30920: 
macOS vulnerability analysis and mitigation

CVE-2021-30920 is a permissions issue in macOS Monterey that was discovered and fixed in version 12.0.1, released on October 25, 2021. The vulnerability affects the Sandbox component and allows a local attacker to potentially read sensitive information (Apple Security).

The vulnerability was identified as a permissions issue in the Sandbox component of macOS Monterey. The issue was addressed with improved validation. According to the National Vulnerability Database, this vulnerability has a CVSS v3.1 Base Score of 5.5 (MEDIUM) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (NVD).

The vulnerability allows a local attacker to read sensitive information on affected systems. The impact is primarily focused on confidentiality, with no direct impact on system integrity or availability (Apple Security).

Apple addressed this vulnerability in macOS Monterey 12.0.1. Users should update to this version or later to protect against this security issue. The fix involves improved validation in the Sandbox component (Apple Security).

The vulnerability was discovered and reported by Csaba Fitzl (@theevilbit) of Offensive Security, demonstrating ongoing security research in macOS systems (Apple Security).