PT-2021-18886 · Apple · Apple Macos

Benjamin Berger + 1 · Published 2021-09-13 · Updated 2021-11-03 · CVE-2021-30813

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS versions prior to 12.0.1

Description A person with access to a host Mac may be able to bypass the Login Window in Remote Desktop for a locked instance of macOS due to a logic issue. This issue was addressed with improved checks.

Recommendations For versions prior to 12.0.1, update to macOS Monterey 12.0.1 to resolve the issue. As a temporary workaround, consider restricting access to Remote Desktop for locked instances of macOS until the update is applied.

Fix

Related Identifiers

CVE-2021-30813

Affected Products

Apple Macos

References · 9

• https://support.apple.com/en-us/HT212869 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30813 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30813 · Security Note
• https://support.apple.com/en-us/HT212804 · Note
• https://t.me/cibsecurity/31413 · Telegram Post
• https://support.apple.com/en-us/103236 · Note
• https://t.me/cvenotify/22590 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30813 · Note
• https://support.apple.com/en-us/103147 · Note