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.
References
Link | Resource |
---|---|
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-grph-cm44-p3jv | Third Party Advisory |
https://hackerone.com/reports/1167929 | Permissions Required Third Party Advisory |
https://security.gentoo.org/glsa/202208-17 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-06-01T20:55:09
Updated: 2022-08-11T00:11:17
Reserved: 2021-05-12T00:00:00
Link: CVE-2021-32655
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-06-01T21:15:07.727
Modified: 2022-10-26T14:09:43.607
Link: CVE-2021-32655
JSON object: View
Redhat Information
No data.
CWE