CVE-2021-37194 File upload in COMOS V10.2

Q: Is CVE-2021-37194 being exploited?

There is no known exploitation of CVE-2021-37194 in the wild and no public exploit code.

Q: How do I fix CVE-2021-37194?

No fix has been published for CVE-2021-37194 yet. Limit exposure of the affected software until one is available.

High 7.5 Published 9 Feb 2022 Updated 4 Aug 2024

Attackers can upload malicious files to the Siemens COMOS web server if web components are enabled, potentially leading to code execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-37194?

CVE-2021-37194 is a high-severity vulnerability in Siemens COMOS V10.2, published on 9 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS allows to upload and store arbitrary files at the webserver. This could allow an attacker to store malicious files.

Weakness: CWE-434

Which versions are affected by CVE-2021-37194?

It affects 1 product.

Products include Siemens Comos.

How do I fix CVE-2021-37194?

No fix has been published for CVE-2021-37194 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-37194 being exploited?

There is no known exploitation of CVE-2021-37194 in the wild and no public exploit code.

Sources

Also known as GHSA-3pr9-fm6f-mq6g.