Description
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2017-1237 | Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for. |
References
History
No history.
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2024-08-05T13:18:06.386Z
Reserved: 2016-11-30T00:00:00.000Z
Link: CVE-2017-0883
No data.
Status : Modified
Published: 2017-04-05T20:59:00.197
Modified: 2026-05-13T00:24:29.033
Link: CVE-2017-0883
No data.
OpenCVE Enrichment
No data.
EUVD