Vulnerability Description
Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
CVSS Score
6.8
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Desktop | < 2.6.5 |
| Linux | Linux Kernel | - |
Related Weaknesses (CWE)
References
- https://hackerone.com/reports/590319ExploitThird Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-032Broken LinkExploitVendor Advisory
- https://security.gentoo.org/glsa/202009-09Third Party Advisory
- https://hackerone.com/reports/590319ExploitThird Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-032Broken LinkExploitVendor Advisory
- https://security.gentoo.org/glsa/202009-09Third Party Advisory
FAQ
What is CVE-2020-8227?
CVE-2020-8227 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
How severe is CVE-2020-8227?
CVE-2020-8227 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8227?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Desktop, Linux Linux Kernel.