Insecure Inherited Permissions in macOS - CVE-2021-30892

 

Insecure Inherited Permissions in macOS - CVE-2021-30892

Published: October 27, 2021


Vulnerability identifier: #VU57728
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-30892
CWE-ID: CWE-277
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Apple Inc.
Affected software:
macOS

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in the zsh component in macOS due to incorrectly inherited permissions. A local user can modify protected parts of the file system.


How to mitigate CVE-2021-30892

Install updates from vendor's website.

Sources