CVE-2019-15621

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.

Una preservación de permisos inapropiada en Nextcloud Server versión 16.0.1, causa que los recursos compartidos sean capaces de compartir con permisos de escritura cuando comparte el punto de montaje de un recurso compartido que recibieron, como un enlace público.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-08-26 CVE Reserved
2020-02-04 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-281: Improper Preservation of Permissions

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html	2020-02-16
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html	2020-02-16
https://nextcloud.com/security/advisory/?id=NC-SA-2020-012	2020-02-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				< 14.0.13 Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 14.0.13"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 15.0.0 < 15.0.9 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 15.0.0 < 15.0.9"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 16.0.0 < 16.0.2 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 16.0.0 < 16.0.2"		-		Affected