PT-2020-17759 · Apple · Macos Catalina

Hackeron2Wheels + 3 · Published 2020-02-27 · Updated 2021-07-21 · CVE-2020-3866

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS Catalina versions prior to 10.15.3

Description The issue allows an attacker to bypass Gatekeeper by searching for and opening a file from an attacker-controlled NFS mount. This was addressed with additional checks by Gatekeeper on files mounted through a network share.

Recommendations For macOS Catalina versions prior to 10.15.3, update to macOS Catalina 10.15.3 to resolve the issue. As a temporary workaround, consider restricting access to NFS mounts from untrusted sources to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2020-3866

Affected Products

Macos Catalina

References · 4

• https://osv.dev/vulnerability/CVE-2020-3866 · Vendor Advisory
• https://support.apple.com/HT210919 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3866 · Security Note
• https://t.me/cvenotify/1253 · Telegram Post