CVE-2020-27896 Path traversal in macOS
A remote attacker can modify the file system due to a path handling issue in macOS, requiring an upgrade to the latest version.
- 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-2020-27896?
CVE-2020-27896 is a medium-severity path traversal vulnerability in Apple Mac Os X, published on 8 Dec 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
A path handling issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.0.1. A remote attacker may be able to modify the file system.
Weakness: CWE-22
Which versions are affected by CVE-2020-27896?
It affects 2 products.
Products include Apple Mac Os X, Apple Macos.
How do I fix CVE-2020-27896?
No fix has been published for CVE-2020-27896 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-27896 being exploited?
There is no known exploitation of CVE-2020-27896 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as GHSA-g5hr-gmvw-m425.