What is CVE-2021-37629?

CVE-2021-37629 is a vulnerability in Nextcloud Richdocuments that allows an attacker to enumerate potentially valid share tokens.

What is the severity of CVE-2021-37629?

The severity of CVE-2021-37629 is medium, with a CVSS score of 5.3.

How can an attacker exploit CVE-2021-37629?

An attacker can exploit CVE-2021-37629 by exploiting the lack of rate limiting on the Richdocuments OCS endpoint to enumerate potentially valid share tokens.

How can I fix the CVE-2021-37629 vulnerability?

To fix the CVE-2021-37629 vulnerability, it is recommended to upgrade the Nextcloud Richdocuments app to a version higher than 4.2.1.

Where can I find more information about CVE-2021-37629?

You can find more information about CVE-2021-37629 in the following references: - [GitHub Pull Request](https://github.com/nextcloud/richdocuments/pull/1663) - [Nextcloud Security Advisories](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx) - [HackerOne Report](https://hackerone.com/reports/1258750)

Vulnerability/
CVE-2021-37629

medium

5.3

CWE

770 200

7/9/2021

4/8/2024

CVE-2021-37629: Lack of ratelimit on Richdocuments OCS endpoint in nextcloud

First published: Tue Sep 07 2021(Updated: )

Nextcloud Richdocuments is an open source collaborative office suite. In affected versions there is a lack of rate limiting on the Richdocuments OCS endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Nextcloud Richdocuments	<3.8.4
Nextcloud Richdocuments	>=4.0.0<4.2.1

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Frequently Asked Questions

What is CVE-2021-37629?
CVE-2021-37629 is a vulnerability in Nextcloud Richdocuments that allows an attacker to enumerate potentially valid share tokens.
What is the severity of CVE-2021-37629?
The severity of CVE-2021-37629 is medium, with a CVSS score of 5.3.
How can an attacker exploit CVE-2021-37629?
An attacker can exploit CVE-2021-37629 by exploiting the lack of rate limiting on the Richdocuments OCS endpoint to enumerate potentially valid share tokens.
How can I fix the CVE-2021-37629 vulnerability?
To fix the CVE-2021-37629 vulnerability, it is recommended to upgrade the Nextcloud Richdocuments app to a version higher than 4.2.1.
Where can I find more information about CVE-2021-37629?
You can find more information about CVE-2021-37629 in the following references: - [GitHub Pull Request](https://github.com/nextcloud/richdocuments/pull/1663) - [Nextcloud Security Advisories](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx) - [HackerOne Report](https://hackerone.com/reports/1258750)

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