PT-2021-18896 · Apple · Apple Macos

Nathan Nye · Published 2021-09-13 · Updated 2021-10-22 · CVE-2021-30827

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions macOS versions prior to Big Sur 11.6 macOS Catalina versions prior to Security Update 2021-005

Description A permissions issue existed, allowing a local attacker to potentially elevate their privileges. This issue was addressed with improved permission validation.

Recommendations For macOS Catalina, apply Security Update 2021-005 to resolve the issue. For macOS Big Sur, update to version 11.6 or later to resolve the issue.

Fix

Improper Preservation of Permissions

Weakness Enumeration

CWE-281

Related Identifiers

CVE-2021-30827

Affected Products

Apple Macos

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-30827 · Security Note
• https://support.apple.com/en-us/HT212804 · Vendor Advisory
• https://support.apple.com/en-us/HT212805 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30827 · Vendor Advisory
• https://support.apple.com/en-us/103147 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30827 · Note