CVE-2020-3866 Security feature bypass in macOS
Attackers can bypass Gatekeeper security checks by tricking users into opening files from a malicious NFS mount on macOS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3866?
CVE-2020-3866 is a medium-severity vulnerability in Apple Mac Os X, published on 27 Feb 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
This was addressed with additional checks by Gatekeeper on files mounted through a network share. This issue is fixed in macOS Catalina 10.15.3. Searching for and opening a file from an attacker controlled NFS mount may bypass Gatekeeper.
Which versions are affected by CVE-2020-3866?
It affects 1 product.
Products include Apple Mac Os X.
How do I fix CVE-2020-3866?
No fix has been published for CVE-2020-3866 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3866 being exploited?
There is no known exploitation of CVE-2020-3866 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as GHSA-gx6x-fhpp-hw29.