CVEvulnerability
CVE-2016-9464
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2017-03-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 4.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-285
Description
Nextcloud Server before 9.0.54 and 10.0.0 suffers from an improper authorization check on removing shares. The Sharing Backend as implemented in Nextcloud does differentiate between shares to users and groups. In case of a received group share, users should be able to unshare the file to themselves but not to the whole group. The previous API implementation simply unshared the file to all users in the group.
Affected configurations
• nextcloud nextcloud server (< 9.0.54)
• nextcloud nextcloud server 10.0
Related
Weakness · CWE (1)
- CWE-285 Improper Authorization weakness
References
- http://www.securityfocus.com/bid/97287 Third Party Advisory, VDB Entry
- https://github.com/nextcloud/server/commit/3387e5d00fcf6b2ea6b285a091e5743f545e7202 Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/7289cb5ec0b812992ab0dfb889744b94bc0994f0 Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/a5471b4a3e3f30e99e4de39c97c0c3b3c2f1618f Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/e2c4f4f9aa11bc92e8f2212cce73841b922187e8 Issue Tracking, Patch, Third Party Advisory
- https://hackerone.com/reports/153905 Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-007 Patch, Vendor Advisory
- http://www.securityfocus.com/bid/97287 Third Party Advisory, VDB Entry
- https://github.com/nextcloud/server/commit/3387e5d00fcf6b2ea6b285a091e5743f545e7202 Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/7289cb5ec0b812992ab0dfb889744b94bc0994f0 Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/a5471b4a3e3f30e99e4de39c97c0c3b3c2f1618f Issue Tracking, Patch, Third Party Advisory
- https://github.com/nextcloud/server/commit/e2c4f4f9aa11bc92e8f2212cce73841b922187e8 Issue Tracking, Patch, Third Party Advisory
- https://hackerone.com/reports/153905 Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-007 Patch, Vendor Advisory