National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-9461 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N (V3 legend)
Impact Score: 1.4
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/97276 Third Party Advisory VDB Entry
https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547 Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47 Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9 Issue Tracking Patch Third Party Advisory
https://hackerone.com/reports/145950 Exploit Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2016-004 Patch Vendor Advisory
https://owncloud.org/security/advisory/?id=oc-sa-2016-014 Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.0.52
 cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.0.4


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-9461
NVD Published Date:
03/27/2017
NVD Last Modified:
03/12/2019