CVE-2021-30833 Path traversal in macOS

What is CVE-2021-30833?

CVE-2021-30833 is a medium-severity path traversal vulnerability in Apple Mac Os X, published on 28 Oct 2021. 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 issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. Unpacking a maliciously crafted archive may allow an attacker to write arbitrary files.

Which versions are affected by CVE-2021-30833?

It affects 2 products.

Products include Apple Mac Os X, Apple Macos.

How do I fix CVE-2021-30833?

No fix has been published for CVE-2021-30833 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-2021-30833 being exploited?

There is no known exploitation of CVE-2021-30833 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-j64f-jw3r-9c68.