CVE-2021-28798: Relative Path Traversal Vulnerability in QTS and QuTS hero
First published: Fri May 21 2021(Updated: )
A relative path traversal vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to modify files that impact system integrity. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QNAP NAS running QTS 4.5.3 are not affected.
Credit: security@qnapsecurity.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QNAP QTS | >=4.3.2.0144<4.3.3.1624 | |
| QNAP QTS | >=4.3.4.0000<4.3.6.1663 | |
| QNAP QTS | >=4.4.0000<4.5.2.1630 | |
| QNAP QuTS hero | <h4.5.2.1638 |
Remedy
QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later
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Reference Links
Frequently Asked Questions
What is CVE-2021-28798?
CVE-2021-28798 is a relative path traversal vulnerability that affects QNAP NAS running QTS and QuTS hero, allowing attackers to modify files that impact system integrity.
How does CVE-2021-28798 affect QNAP NAS?
CVE-2021-28798 allows attackers to modify files that impact system integrity on QNAP NAS devices running QTS and QuTS hero.
What is the severity of CVE-2021-28798?
CVE-2021-28798 has a severity rating of 7.5 (High).
Which versions of QTS and QuTS hero are affected by CVE-2021-28798?
CVE-2021-28798 affects QTS versions 4.3.2.0144 to 4.3.3.1624, 4.3.4.0000 to 4.3.6.1663, and 4.4.0000 to 4.5.2.1630, as well as QuTS hero version up to h4.5.2.1638.
How can I fix CVE-2021-28798 on my QNAP NAS?
To fix CVE-2021-28798, you need to update your QNAP NAS to the latest fixed versions: QTS 4.5.2.1630 Build 20210406 or higher, or QuTS hero h4.5.2.1638 Build 20210405 or higher.
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/weakness
- agent/references
- agent/author
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/title
- agent/severity
- agent/remedy
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/qnap
- canonical/qnap qts
- version/qnap qts/4.3.2.0144
- version/qnap qts/4.3.4.0000
- version/qnap qts/4.4.0000
- canonical/qnap quts hero