What is CVE-2022-41969?

CVE-2022-41969 is a vulnerability in Nextcloud Server that allows an administrator to cause a limited Denial of Service (DoS) attack against their own server by creating a user with no password length limit.

How can an attacker exploit CVE-2022-41969?

An attacker can exploit CVE-2022-41969 by creating a user with a very long password, which can lead to a limited DoS attack against the Nextcloud Server.

What is the severity of CVE-2022-41969?

CVE-2022-41969 has a severity rating of low with a score of 2.7.

Which versions of Nextcloud Server are affected by CVE-2022-41969?

Versions 23.0.0 to 23.0.11 and versions 24.0.0 to 24.0.7 of Nextcloud Server are affected by CVE-2022-41969.

How can CVE-2022-41969 be fixed?

To fix CVE-2022-41969, it is recommended to upgrade Nextcloud Server to version 23.0.11, 24.0.7, or 25.0.0 or later, as these versions contain the necessary fix.

Vulnerability/
CVE-2022-41969

low

2.7

CWE

521 400

1/12/2022

3/8/2024

CVE-2022-41969: Nextcloud Server has no password length limit when creating a user as an administrator

First published: Thu Dec 01 2022(Updated: )

Nextcloud Server is an open source personal cloud server. Prior to versions 23.0.11, 24.0.7, and 25.0.0, there is no password length limit when creating a user as an administrator. An administrator can cause a limited DoS attack against their own server. Versions 23.0.11, 24.0.7, and 25.0.0 contain a fix for the issue. As a workaround, don't create user accounts with long passwords.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Nextcloud Nextcloud Server	>=23.0.0<23.0.11
Nextcloud Nextcloud Server	>=23.0.0<23.0.11
Nextcloud Nextcloud Server	>=24.0.0<24.0.7
Nextcloud Nextcloud Server	>=24.0.0<24.0.7

Remedy

https://github.com/nextcloud/server/pull/34500

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Reference Links

Frequently Asked Questions

What is CVE-2022-41969?
CVE-2022-41969 is a vulnerability in Nextcloud Server that allows an administrator to cause a limited Denial of Service (DoS) attack against their own server by creating a user with no password length limit.
How can an attacker exploit CVE-2022-41969?
An attacker can exploit CVE-2022-41969 by creating a user with a very long password, which can lead to a limited DoS attack against the Nextcloud Server.
What is the severity of CVE-2022-41969?
CVE-2022-41969 has a severity rating of low with a score of 2.7.
Which versions of Nextcloud Server are affected by CVE-2022-41969?
Versions 23.0.0 to 23.0.11 and versions 24.0.0 to 24.0.7 of Nextcloud Server are affected by CVE-2022-41969.
How can CVE-2022-41969 be fixed?
To fix CVE-2022-41969, it is recommended to upgrade Nextcloud Server to version 23.0.11, 24.0.7, or 25.0.0 or later, as these versions contain the necessary fix.

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version/nextcloud nextcloud server/23.0.0
version/nextcloud nextcloud server/24.0.0

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