CVE-2016-9462

MEDIUM

Nextcloud Server < 9.0.52 - Improper Access Control

Title source: rule

Description

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions.

References (9)

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/97285

[Issue Tracking, Patch, Third Party Advisory] https://github.com/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e

View Patch ZIP pw:eip

[Issue Tracking, Patch, Third Party Advisory] https://github.com/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c

View Patch ZIP pw:eip

[Issue Tracking, Patch, Third Party Advisory] https://github.com/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13

[Issue Tracking, Patch, Third Party Advisory] https://github.com/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e

[Issue Tracking, Patch, Third Party Advisory] https://github.com/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1

[Exploit, Third Party Advisory] https://hackerone.com/reports/146067

[Patch, Vendor Advisory] https://nextcloud.com/security/advisory/?id=nc-sa-2016-005

[Patch, Vendor Advisory] https://owncloud.org/security/advisory/?id=oc-sa-2016-015

Scores

CVSS v3 4.3

EPSS 0.0046

EPSS Percentile 63.6%

Attack Vector NETWORK

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

Classification

CWE

CWE-284 CWE-275

Status published

Affected Products (3)

nextcloud/nextcloud_server < 9.0.52

owncloud/owncloud < 9.0.4

n/a/Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 < Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4

Timeline

Published Mar 28, 2017

Tracked Since Feb 18, 2026