Vulnerability Description
An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qnap | Qts | >= 5.0.0.1716, < 5.0.0.1986 |
| Qnap | Quts Hero | < h4.5.4.1771 |
| Qnap | Qutscloud | < c5.0.1.1998 |
Related Weaknesses (CWE)
References
- https://www.qnap.com/en/security-advisory/qsa-22-16Vendor Advisory
- https://www.qnap.com/en/security-advisory/qsa-22-16Vendor Advisory
FAQ
What is CVE-2021-44052?
CVE-2021-44052 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows r...
How severe is CVE-2021-44052?
CVE-2021-44052 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-44052?
Check the references section above for vendor advisories and patch information. Affected products include: Qnap Qts, Qnap Quts Hero, Qnap Qutscloud.