Vulnerability in Nextcloud Server
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.
EPSS: 0.020 (78.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Nextcloud Nextcloud_server
- Owncloud
- N/a Nextcloud Server & Owncloud Before 9.0.52 9.0.4 — versions Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Patch, x_refsource_MISC, Vendor Advisory)
- support@hackerone.com (Patch, x_refsource_MISC, Vendor Advisory)
- support@hackerone.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2016-9461?
- CVE-2016-9461 is a medium-severity vulnerability in Nextcloud Server, classified under Permission Issues. CVSS score: 4.3/10. Published 2017-03-28.
- How severe is CVE-2016-9461?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2016-9461 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.