CVE-2016-9461
Description
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| nextcloud | nextcloud_server | {"endExcluding":"9.0.52"} | 9.0.52 |
| owncloud | owncloud | {"endExcluding":"9.0.4"} | 9.0.4 |
References
- http://www.securityfocus.com/bid/97276
- https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc
- https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547
- https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e
- https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47
- https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9
- https://hackerone.com/reports/145950
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-004
- https://owncloud.org/security/advisory/?id=oc-sa-2016-014
- http://www.securityfocus.com/bid/97276
- https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc
- https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547
- https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e
- https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47
- https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9
- https://hackerone.com/reports/145950
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-004
- https://owncloud.org/security/advisory/?id=oc-sa-2016-014
CWEs
CWE-275 CWE-284
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.