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CVE-2018-19945

9.1 · CRITICAL

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6.

Published Dec 31, 2020CWE-20EPSS 1.12%

Overview

CVE-2018-19945 is a critical-severity vulnerability. It was published on December 31, 2020 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.qnap.com/zh-tw/security-advisory/qsa-20-21Refwww.qnap.com/zh-tw/security-advisory/qsa-20-21

How CyberStrike helps

Frequently asked questions

What is CVE-2018-19945?

CVE-2018-19945 is a critical-severity vulnerability. It was published on December 31, 2020 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2018-19945?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-19945?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-19945?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-19945 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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