CVE-2020-8227: Path Traversal
First published: Fri Aug 21 2020(Updated: )
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.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Desktop | <2.6.5 | |
| Linux Linux kernel |
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Reference Links
Frequently Asked Questions
What is CVE-2020-8227?
CVE-2020-8227 is a vulnerability in Nextcloud Desktop Client 2.6.4 for Linux that allows a malicious server to store files outside of the sync directory.
How severe is CVE-2020-8227?
CVE-2020-8227 has a severity score of 6.8, which is considered high.
How can I fix the vulnerability in Nextcloud Desktop Client?
To fix the vulnerability, update Nextcloud Desktop Client to version 2.6.5 or later.
Can Linux Linux kernel be affected by CVE-2020-8227?
No, Linux Linux kernel is not vulnerable to CVE-2020-8227.
Where can I find more information about CVE-2020-8227?
You can find more information about CVE-2020-8227 in the following references: [HackerOne Report](https://hackerone.com/reports/590319), [Nextcloud Security Advisory](https://nextcloud.com/security/advisory/?id=NC-SA-2020-032), [Gentoo GLSA](https://security.gentoo.org/glsa/202009-09).
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