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CVE-2021-32655

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CVE-2021-32655

Published: Jun 1, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

3.5

LOW

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.

VendorProductVersions

nextcloud

security-advisories

affected
< 19.0.11
affected
>= 20.0.0, < 20.0.10
affected
>= 21.0.0, < 21.0.2

Weaknesses (CWE)

CWE-241

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

GLSA-202208-17
vendor-advisory
x_refsource_GENTOO

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