CVE-2021-38485 Emerson WirelessHART Gateway

High 8.0 Published 22 Oct 2021 Updated 16 Sep 2024

An attacker can exploit improper input validation in the restore file to replace any file on disk, potentially leading to system compromise.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-38485?

CVE-2021-38485 is a high-severity path traversal vulnerability in Emerson WirelessHART Gateway, published on 22 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The affected product is vulnerable to improper input validation in the restore file. This enables an attacker to provide malicious config files to replace any file on disk.

Weakness: CWE-20

Which versions are affected by CVE-2021-38485?

It affects 3 products.

Products include Emerson Wireless 1410 Gateway Firmware, Emerson Wireless 1410d Gateway Firmware, Emerson Wireless 1420 Gateway Firmware.

How do I fix CVE-2021-38485?

No fix has been published for CVE-2021-38485 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-2021-38485 being exploited?

There is no known exploitation of CVE-2021-38485 in the wild and no public exploit code.

Sources

Also known as GHSA-3vv9-j796-m9mf.