CVE-2023-48303

Nextcloud Server admins can change authentication details of user configured external storage

Severity Score

2.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, admins can change authentication details of user configured external storage. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. No known workarounds are available.

Nextcloud Server proporciona almacenamiento de datos para Nextcloud, una plataforma en la nube de código abierto. A partir de la versión 25.0.0 y anteriores a las versiones 25.0.11, 26.0.6 y 27.1.0 de Nextcloud Server y Nextcloud Enterprise Server, los administradores pueden cambiar los detalles de autenticación del almacenamiento externo configurado por el usuario. Las versiones 25.0.11, 26.0.6 y 27.1.0 de Nextcloud Server y Nextcloud Enterprise Server contienen un parche para este problema. No hay workarounds conocidos disponibles.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-11-14 CVE Reserved
2023-11-21 CVE Published
2023-12-01 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/server/pull/39895	2023-11-30

URL	Date	SRC
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44rp-c7hh	2023-11-30

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"				>= 25.0.0 < 25.0.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 25.0.0 < 25.0.11"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 25.0.0 < 25.0.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 25.0.0 < 25.0.11"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 26.0.0 < 26.0.6 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 26.0.0 < 26.0.6"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 26.0.0 < 26.0.6 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 26.0.0 < 26.0.6"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 27.0.0 < 27.1.0 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 27.0.0 < 27.1.0"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 27.0.0 < 27.1.0 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 27.0.0 < 27.1.0"		enterprise		Affected