CVE-2020-2509 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-04-11
A command injection vulnerability in QNAP QTS and QuTS hero allows remote attackers to execute arbitrary commands on the NAS device. The vulnerability stems from improper neutralization of special elements used in OS commands.
Yes. CVE-2020-2509 is known to be exploited in the wild, first recorded on 11 April 2022. Treat it as urgent.
How severe is CVE-2020-2509?
Critical severity, with a CVSS score of 9.8, published 11 April 2022.
Which products and versions are affected?
QNAP QTS 4.5.2.1566 Build 20210202 and later; 4.5.1.1495 Build 20201123 and later; 4.3.6.1620 Build 20210322 and later; 4.3.4.1632 Build 20210324 and later; 4.3.3.1624 Build 20210416 and later; 4.2.6 Build 20210327 and later; QNAP QuTS hero h4.5.1.1491 build 20201119 and later.
Is there a fix for CVE-2020-2509?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-2509 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2020-2509?
Check whether you run QNAP Network Attached Storage (NAS) or Qnap Network-Attached Storage (Nas). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
QNAP QTS 4.5.2.1566 Build 20210202 and later; 4.5.1.1495 Build 20201123 and later; 4.3.6.1620 Build 20210322 and later; 4.3.4.1632 Build 20210324 and later; 4.3.3.1624 Build 20210416 and later; 4.2.6 Build 20210327 and later
QNAP QuTS hero h4.5.1.1491 build 20201119 and later
Timeline
2021-04-23: disclosed: Initial analysis by NIST published.
2022-04-11: kev added: Added to CISA Known Exploited Vulnerabilities (KEV) catalog.
2022-04-11: exploited: Reported as exploited in the wild.