CVE-2021-3722 Path traversal in PCManager

Medium 5.0 Published 22 Apr 2022 Updated 3 Aug 2024

Attackers can write configuration files to non-standard locations during installation, causing a denial of service in Lenovo PCManager.

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-2021-3722?

CVE-2021-3722 is a medium-severity path traversal vulnerability in Lenovo PCManager, published on 22 Apr 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

A denial of service vulnerability was reported in Lenovo PCManager prior to version 4.0.40.2175 that could allow configuration files to be written to non-standard locations during installation.

Weakness: CWE-276

Which versions are affected by CVE-2021-3722?

It affects 1 product.

Products include Lenovo Pcmanager.

How do I fix CVE-2021-3722?

No fix has been published for CVE-2021-3722 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-2021-3722 being exploited?

There is no known exploitation of CVE-2021-3722 in the wild and no public exploit code.

Sources

Also known as GHSA-c487-fg76-c2vh.