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CVE-2021-32655

LOW

3.5

Description

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to convert a Files Drop link to a federated share. This causes an issue on the UI side of the sharing user. When the sharing user opens the sharing panel and tries to remove the "Create" privileges of this unexpected share, Nextcloud server would silently grant the share read privileges. The vulnerability is patched in versions 19.0.11, 20.0.10 and 21.0.2. No workarounds are known to exist.

CVE Details

CVSS v3.1 Score3.5

SeverityLOW

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published6/1/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nextcloud:nextcloud_server

Weaknesses (CWE)

CWE-241

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-grph-cm44-p3jv(security-advisories@github.com)

https://hackerone.com/reports/1167929(security-advisories@github.com)

https://security.gentoo.org/glsa/202208-17(security-advisories@github.com)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-grph-cm44-p3jv(af854a3a-2127-422b-91ae-364da2661108)

https://hackerone.com/reports/1167929(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202208-17(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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