CVE-2016-9461

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.

CVSS v3.0

4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v2.0

4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:N

EPSS

2.00% chance of exploitation in the next 30 days, 79th percentile

Published

2017-03-28

Updated

2024-08-06

Proof-of-concept exploits (1)

• https://hackerone.com/reports/145950

References

• CVE Record
• NVD entry

Related

• CVE-2016-9460
• CVE-2016-9462
• CVE-2016-9459
• CVE-2016-9463
• CVE-2016-9447
• CVE-2016-9464