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.
References
Link | Resource |
---|---|
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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: hackerone
Published: 2017-03-28T02:46:00
Updated: 2017-04-03T09:57:01
Reserved: 2016-11-19T00:00:00
Link: CVE-2016-9464
JSON object: View
NVD Information
Status : Modified
Published: 2017-03-28T02:59:00.997
Modified: 2019-10-09T23:20:29.133
Link: CVE-2016-9464
JSON object: View
Redhat Information
No data.
CWE