What is the severity of CVE-2020-8173?

CVE-2020-8173 has been classified as a medium severity vulnerability.

How do I fix CVE-2020-8173?

To fix CVE-2020-8173, upgrade Nextcloud Server to version 18.0.5 or later, or to version 17.0.7 or later.

What are the affected versions for CVE-2020-8173?

CVE-2020-8173 affects Nextcloud Server versions prior to 18.0.5 and all versions below 17.0.7.

What type of vulnerability is CVE-2020-8173?

CVE-2020-8173 is an encryption vulnerability that allows decryption quicker than intended due to a small set of random characters.

Is CVE-2020-8173 exploitable?

Yes, CVE-2020-8173 is exploitable under certain conditions where attackers can leverage the flawed encryption mechanism.

Vulnerability/
CVE-2020-8173

low

3.5

CWE

311 310

30/10/2020

4/8/2024

CVE-2020-8173

First published: Fri Oct 30 2020(Updated: )

A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.

Credit: support@hackerone.com

Affected Software	Affected Version	How to fix
Nextcloud Nextcloud Server	<17.0.7
Nextcloud Nextcloud Server	>=18.0.0<18.0.5

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Frequently Asked Questions

What is the severity of CVE-2020-8173?
CVE-2020-8173 has been classified as a medium severity vulnerability.
How do I fix CVE-2020-8173?
To fix CVE-2020-8173, upgrade Nextcloud Server to version 18.0.5 or later, or to version 17.0.7 or later.
What are the affected versions for CVE-2020-8173?
CVE-2020-8173 affects Nextcloud Server versions prior to 18.0.5 and all versions below 17.0.7.
What type of vulnerability is CVE-2020-8173?
CVE-2020-8173 is an encryption vulnerability that allows decryption quicker than intended due to a small set of random characters.
Is CVE-2020-8173 exploitable?
Yes, CVE-2020-8173 is exploitable under certain conditions where attackers can leverage the flawed encryption mechanism.

collector/nvd-index
agent/weakness
agent/type
agent/references
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/author
agent/severity
agent/last-modified-date
agent/tags
agent/description
agent/first-publish-date
agent/event
agent/source
vendor/nextcloud
canonical/nextcloud nextcloud server
version/nextcloud nextcloud server/18.0.0

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Frequently Asked Questions

What is the severity of CVE-2020-8173?
CVE-2020-8173 has been classified as a medium severity vulnerability.
How do I fix CVE-2020-8173?
To fix CVE-2020-8173, upgrade Nextcloud Server to version 18.0.5 or later, or to version 17.0.7 or later.
What are the affected versions for CVE-2020-8173?
CVE-2020-8173 affects Nextcloud Server versions prior to 18.0.5 and all versions below 17.0.7.
What type of vulnerability is CVE-2020-8173?
CVE-2020-8173 is an encryption vulnerability that allows decryption quicker than intended due to a small set of random characters.
Is CVE-2020-8173 exploitable?
Yes, CVE-2020-8173 is exploitable under certain conditions where attackers can leverage the flawed encryption mechanism.