Files or Directories Accessible to External Parties in macOS - CVE-2020-3866
Published: May 19, 2021
Vulnerability identifier: #VU53363
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3866
CWE-ID: CWE-552
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an error in autofs implementation when performing searches and opening files from an attacker controlled NFS mount. A remote attacker can trick the victim to open a file and bypass Gatekeeper restrictions.
How to mitigate CVE-2020-3866
Install updates from vendor's website.