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CVE-2021-41177

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CVE-2021-41177

Published: Oct 25, 2021

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as `AnonRateThrottle` or `UserRateThrottle`) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5, or 22.2.0. As a workaround, enable a memory cache backend in `config.php`.

VendorProductVersions

nextcloud

security-advisories

affected
< 20.0.13
affected
>= 21.0.0, < 21.0.5
affected
< 22.2.0

Weaknesses (CWE)

CWE-799

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

References

GLSA-202208-17
vendor-advisory
x_refsource_GENTOO

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