CVE-2016-9464

CVSS V2 Medium 4 CVSS V3 Medium 4.3
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.
Overview
  • CVE ID
  • CVE-2016-9464
  • Assigner
  • support@hackerone.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-03-28T02:59:00
  • Last Modified Date
  • 2019-10-09T23:20:29
Weakness Enumerations
CWE URL
CWE-285 http://cwe.mitre.org/data/definitions/285.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* 1 OR 9.0.54
cpe:2.3:a:nextcloud:nextcloud_server:10.0:rc1:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://nextcloud.com/security/advisory/?id=nc-sa-2016-007 Patch Vendor Advisory
https://hackerone.com/reports/153905 Exploit Third Party Advisory
https://github.com/nextcloud/server/commit/e2c4f4f9aa11bc92e8f2212cce73841b922187e8 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/7289cb5ec0b812992ab0dfb889744b94bc0994f0 Issue Tracking Patch Third Party Advisory
https://github.com/nextcloud/server/commit/3387e5d00fcf6b2ea6b285a091e5743f545e7202 Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/97287 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-9464
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9464
History
Created Old Value New Value Data Type Notes
2022-05-10 17:13:41 Added to TrackCVE
2022-12-02 15:11:59 cve-assignments@hackerone.com support@hackerone.com CVE Assigner updated
2022-12-02 15:11:59 2017-03-28T02:59Z 2017-03-28T02:59:00 CVE Published Date updated
2022-12-02 15:11:59 2019-10-09T23:20:29 CVE Modified Date updated
2022-12-02 15:11:59 Modified Vulnerability Status updated