CVE-2020-8227: Path Traversal

Published 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.

Affected Software

2 affected components
Nextcloud Desktop<2.6.5
Linux Linux kernel

Event History

Aug 21, 2020
CVE Published
via MITRE·08:33 PM
Data Sourced
via MITRE·08:33 PM
DescriptionWeakness
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Frequently Asked Questions

1

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.

2

How severe is CVE-2020-8227?

CVE-2020-8227 has a severity score of 6.8, which is considered high.

3

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.

4

Can Linux Linux kernel be affected by CVE-2020-8227?

No, Linux Linux kernel is not vulnerable to CVE-2020-8227.

5

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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