Vulnerability Report

CVE-2016-9461

Title: Owncloud

Other

Proof Of Concept

No public PoC currently indexed for CVE-2016-9461.

CWE Category CWE-284

Published Date Mar 28, 2017

Modified Date May 13, 2026

Exploit Status Not Found

Score 4.3 CVSS v3.0

Exploit Probability (EPSS)

0.76%

Vulnerability Summary

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.

Impacted Vendors

nextcloud 1

owncloud 1

Reference Links

http://www.securityfocus.com/bid/97276 https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547 https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47 https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9 https://hackerone.com/reports/145950 https://nextcloud.com/security/advisory/?id=nc-sa-2016-004 https://owncloud.org/security/advisory/?id=oc-sa-2016-014 http://www.securityfocus.com/bid/97276 https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547 https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47 https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9 https://hackerone.com/reports/145950 https://nextcloud.com/security/advisory/?id=nc-sa-2016-004 https://owncloud.org/security/advisory/?id=oc-sa-2016-014

CVSS v3.0

Source Entity [email protected]

Severity MEDIUM

4.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:S/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns