CVE-2024-37882

Nextcloud Server can reshare read&share only folder with more permissions

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshare the item with more permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4 and that the Nextcloud Enterprise Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4.

Nextcloud Server es un sistema de nube personal autohospedado. Un destinatario de un recurso compartido con permisos de lectura y uso compartido podría volver a compartir el elemento con más permisos. Se recomienda que Nextcloud Server se actualice a 26.0.13 o 27.1.8 o 28.0.4 y que Nextcloud Enterprise Server se actualice a 26.0.13 o 27.1.8 o 28.0.4.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-06-10 CVE Reserved
2024-06-14 CVE Published
2024-07-20 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-281: Improper Preservation of Permissions
CWE-284: Improper Access Control

CAPEC

References (3)

URL	Tag	Source
https://hackerone.com/reports/2289425	Issue Tracking

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/server/pull/44339	2024-07-19

URL	Date	SRC
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jjm3-j9xh-5xmq	2024-07-19

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"				>= 26.0.0 < 26.0.13 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 26.0.0 < 26.0.13"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 27.0.0 < 27.1.8 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 27.0.0 < 27.1.8"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 28.0.0 < 28.0.4 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 28.0.0 < 28.0.4"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 23.0.0 < 23.0.12.17 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 23.0.0 < 23.0.12.17"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 24.0.0 < 24.0.12.13 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 24.0.0 < 24.0.12.13"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 25.0.0 < 25.0.13.8 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 25.0.0 < 25.0.13.8"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 26.0.0 < 26.0.13 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 26.0.0 < 26.0.13"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 27.0.0 < 27.1.8 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 27.0.0 < 27.1.8"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 28.0.0 < 28.0.4 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 28.0.0 < 28.0.4"		enterprise		Affected