CVE-2018-19949: QNAP NAS File Station Command Injection Vulnerability

CVE-2018-19949 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-05-24

A command injection vulnerability in QNAP NAS File Station allows remote attackers to execute arbitrary commands on the affected system. The vulnerability stems from improper neutralization of special elements used in a command.

Technologies: QNAP Network Attached Storage (NAS). Vendors: QNAP.

Quick answers

Is CVE-2018-19949 exploited in the wild?
Yes. CVE-2018-19949 is known to be exploited in the wild, first recorded on 24 May 2022. Treat it as urgent.
How severe is CVE-2018-19949?
Critical severity, with a CVSS score of 9.8, published 24 May 2022.
Which products and versions are affected?
QNAP QTS (File Station) < 4.4.2.1231 build 20200302; QNAP QTS (File Station) < 4.4.1.1201 build 20200130; QNAP QTS (File Station) < 4.3.6.1218 build 20200214; QNAP QTS (File Station) < 4.3.4.1190 build 20200107; and 2 more.
Is there a fix for CVE-2018-19949?
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-2018-19949 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2018-19949?
Check whether you run 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 (File Station) < 4.4.2.1231 build 20200302
  • QNAP QTS (File Station) < 4.4.1.1201 build 20200130
  • QNAP QTS (File Station) < 4.3.6.1218 build 20200214
  • QNAP QTS (File Station) < 4.3.4.1190 build 20200107
  • QNAP QTS (File Station) < 4.3.3.1161 build 20200109
  • QNAP QTS (File Station) < 4.2.6 build 20200109

Timeline

  • 2020-10-28: disclosed: NVD Published Date
  • 2022-05-24: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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