CVE-2021-38686 Improper Authentication Vulnerability in VioStor
Attackers can bypass authentication on QNAP VioStor devices to compromise system security, requiring a firmware upgrade to remediate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-38686?
CVE-2021-38686 is a high-severity authentication bypass vulnerability in QNAP Systems Inc. QVR, published on 26 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An improper authentication vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later
Weakness: CWE-287
Which versions are affected by CVE-2021-38686?
It affects 1 product.
Products include Qnap Qvr.
How do I fix CVE-2021-38686?
No fix has been published for CVE-2021-38686 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-38686 being exploited?
There is no known exploitation of CVE-2021-38686 in the wild and no public exploit code.
Other vulnerabilities in QNAP Systems Inc. QVR
Sources
Also known as GHSA-8qv9-29c6-9v3g.