CVE-2022-31120

Federated share accepting/declining is not logged in audit log in Nextcloud Server

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 is an open source personal cloud solution. The audit log is used to get a full trail of the actions which has been incompletely populated. In affected versions federated share events were not properly logged which would allow brute force attacks to go unnoticed. This behavior exacerbates the impact of CVE-2022-31118. It is recommended that the Nextcloud Server is upgraded to 22.2.7, 23.0.4 or 24.0.0. There are no workarounds available.

El servidor Nextcloud es una solución de nube personal de código abierto. El registro de auditoría se utiliza para obtener un rastro completo de las acciones que se ha poblado de forma incompleta. En las versiones afectadas, los eventos de uso compartido federado no se registraban correctamente, lo que permitía que los ataques de fuerza bruta pasaran desapercibidos. Este comportamiento exacerba el impacto de CVE-2022-31118. Se recomienda actualizar el servidor Nextcloud a la versión 22.2.7, 23.0.4 o 24.0.0. No hay soluciones disponibles

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-05-18 CVE Reserved
2022-08-04 CVE Published
2024-02-25 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-778: Insufficient Logging

CAPEC

References (3)

URL	Tag	Source
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9qvg-7fwg-722x	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/server/pull/31594/commits/1d8bf9a89c6856218802a1d365000a5831be8655	2022-08-10

URL	Date	SRC
https://portal.nextcloud.com/article/using-the-audit-log-44.html	2022-08-10

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"				< 22.2.7 Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 22.2.7"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 23.0.0 < 23.0.4 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 23.0.0 < 23.0.4"		-		Affected