PT-2021-13588 · Apple · Apple Macos

Published 2021-02-09 · Updated 2021-05-04 · CVE-2021-1806

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2.1 macOS Catalina versions prior to 10.15.7 Supplemental Update macOS Mojave versions prior to 10.14.6 Security Update 2021-002

Description: A race condition was addressed with additional validation. This issue allows an application to potentially execute arbitrary code with kernel privileges. The issue is related to a Time-Of-Check Time-Of-Use (TOCTOU) privilege escalation vulnerability.

Recommendations: For macOS versions prior to 11.2.1, update to macOS Big Sur 11.2.1. For macOS Catalina versions prior to 10.15.7 Supplemental Update, apply the macOS Catalina 10.15.7 Supplemental Update. For macOS Mojave versions prior to 10.14.6 Security Update 2021-002, apply the macOS Mojave 10.14.6 Security Update 2021-002.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2021-1806

ZDI-21-197

ZDI-21-198

ZDI-21-200

ZDI-21-201

Affected Products

Apple Macos

References · 11

• https://osv.dev/vulnerability/CVE-2021-1806 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-197 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-200 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-198 · Security Note
• https://support.apple.com/en-us/HT212177 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-201 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-1806 · Security Note
• https://support.apple.com/kb/HT212327 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1806 · Note
• http://seclists.org/fulldisclosure/2021/Apr/54 · Note
• https://support.apple.com/en-us/103058 · Note