CVE-2021-28633 Adobe Creative Cloud Installer Arbitrary File Write

Medium 6.1 Published 24 Aug 2021 Updated 17 Sep 2024

An attacker with physical access can overwrite arbitrary files via insecure temporary file creation in the Adobe Creative Cloud installer.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-28633?

CVE-2021-28633 is a medium-severity path traversal vulnerability in Adobe Creative Cloud (desktop component), published on 24 Aug 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

Adobe Creative Cloud Desktop Application (installer) version 2.4 (and earlier) is affected by an Insecure temporary file creation vulnerability. An attacker could leverage this vulnerability to cause arbitrary file overwriting in the context of the current user. Exploitation of this issue requires physical interaction to the system.

Weakness: CWE-668, CWE-379

Which versions are affected by CVE-2021-28633?

It affects 1 product.

Products include Adobe Creative Cloud Desktop Application.

How do I fix CVE-2021-28633?

No fix has been published for CVE-2021-28633 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-2021-28633 being exploited?

There is no known exploitation of CVE-2021-28633 in the wild and no public exploit code.

Sources

Also known as GHSA-g7f3-p5rj-hpx5.