CVE-2022-3421 Privilege escalation in Google Drive for Desktop on MacOS
An attacker can escalate privileges to root by manipulating directory ownership and symlinks during the initial installation of Google Drive for Desktop on macOS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-3421?
CVE-2022-3421 is a medium-severity vulnerability in Google LLC Drive for Desktop MacOS, published on 17 Oct 2022. 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
An attacker can pre-create the `/Applications/Google\ Drive.app/Contents/MacOS` directory which is expected to be owned by root to be owned by a non-root user. When the Drive for Desktop installer is run for the first time, it will place a binary in that directory with execute permissions and set its setuid bit. Since the attacker owns the directory, the attacker can replace the binary with a symlink, causing the installer to set the setuid bit on the symlink. When the symlink is executed, it will run with root permissions. We recommend upgrading past version 64.0
Which versions are affected by CVE-2022-3421?
It affects 1 product.
Products include Google Drive.
How do I fix CVE-2022-3421?
No fix has been published for CVE-2022-3421 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-3421 being exploited?
There is no known exploitation of CVE-2022-3421 in the wild and no public exploit code.
Sources
Also known as GHSA-g3jf-h663-mqrx.