CVE-2020-9771 Missing authorization in macOS

What is CVE-2020-9771?

CVE-2020-9771 is a high-severity missing authorization vulnerability in Apple Mac Os X, published on 22 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This issue was addressed with a new entitlement. This issue is fixed in macOS Catalina 10.15.4. A user may gain access to protected parts of the file system.

Which versions are affected by CVE-2020-9771?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2020-9771?

No fix has been published for CVE-2020-9771 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-9771 being exploited?

There is no known exploitation of CVE-2020-9771 in the wild and no public exploit code.

Other vulnerabilities in Apple Mac Os X

• CVE-2014-7169 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2014-6271 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2012-1823 PHP-CGI Query String Parameter Exploited Critical 9.8
• CVE-2021-30713 Apple macOS Unspecified Exploited High 7.8
• CVE-2019-8526 Apple macOS Use-After-Free Exploited High 7.8

All Apple Mac Os X vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x973-w3pf-v4m8.