CVE-2021-38685 Command Injection Vulnerability in VioStor

Critical 9.8 Published 26 Nov 2021 Updated 17 Sep 2024

Remote attackers can execute arbitrary commands on QNAP VioStor devices due to a command injection flaw, requiring firmware updates to mitigate.

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-2021-38685?

CVE-2021-38685 is a critical command injection vulnerability in QNAP Systems Inc. QVR, published on 26 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A command injection vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later

Weakness: CWE-78

Which versions are affected by CVE-2021-38685?

It affects 1 product.

Products include Qnap Qvr.

How do I fix CVE-2021-38685?

No fix has been published for CVE-2021-38685 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-38685 being exploited?

There is no known exploitation of CVE-2021-38685 in the wild and no public exploit code.

Sources

Also known as GHSA-5647-h66r-5vj6.