PT-2021-15249 · Nextcloud+1 · Nextcloud+1

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CVE-2021-22877

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Published

2021-03-03

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Updated

2022-09-27

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Nextcloud versions prior to 20.0.6
Description A missing user check in Nextcloud inadvertently populates a user's own credentials for other users' external storage configuration when not already configured yet.
Recommendations For Nextcloud versions prior to 20.0.6, update to version 20.0.6 or later to resolve the issue. As a temporary workaround, consider restricting access to external storage configurations to minimize the risk of exploitation.

Exploit

Fix

Missing Authorization

Improper Access Control

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Weakness Enumeration

Related Identifiers

ALT-PU-2021-3108
ALT-PU-2021-3224
CVE-2021-22877

Affected Products

Alt Linux
Nextcloud