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CVE-2016-9462

Date: March 27, 2017

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.

Language: PHP

Severity Score

Related Resources (11)

https://github.com/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e
https://github.com/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13
https://owncloud.org/security/advisory/?id=oc-sa-2016-015
https://github.com/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c
https://nextcloud.com/security/advisory/?id=nc-sa-2016-005
https://hackerone.com/reports/146067
https://github.com/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1
https://github.com/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e
https://nvd.nist.gov/vuln/detail/CVE-2016-9462
http://www.securityfocus.com/bid/97285
https://www.mend.io/vulnerability-database/CVE-2016-9462

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Permission Issues

CWE-275

CVSS v3.1

Base Score:
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

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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