CVE-2022-31131

Ownership check missing when updating or deleting mail attachments in Nextcloud mail

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nextcloud mail is a Mail app for the Nextcloud home server product. Versions of Nextcloud mail prior to 1.12.2 were found to be missing user account ownership checks when performing tasks related to mail attachments. Attachments may have been exposed to incorrect system users. It is recommended that the Nextcloud Mail app is upgraded to 1.12.2. There are no known workarounds for this issue. ### Workarounds No workaround available ### References * [Pull request](https://github.com/nextcloud/mail/pull/6600) * [HackerOne](https://hackerone.com/reports/1579820) ### For more information If you have any questions or comments about this advisory: * Create a post in [nextcloud/security-advisories](https://github.com/nextcloud/security-advisories/discussions) * Customers: Open a support ticket at [support.nextcloud.com](https://support.nextcloud.com)

Nextcloud mail es una aplicación de correo para el producto Nextcloud home server. Se ha detectado que las versiones de Nextcloud mail anteriores a 1.12.2, no comprueban la propiedad de la cuenta de usuario cuando llevan a cabo tareas relacionadas con los archivos adjuntos del correo. Los archivos adjuntos pueden haber sido expuestos a usuarios del sistema incorrectos. Es recomendado actualizar la aplicación Nextcloud Mail a versión 1.12.2. No se presentan mitigaciones conocidas para este problema. ### Mitigaciones No se presentan mitigaciones disponibles ### Referencias * [Pull request](https://github.com/nextcloud/mail/pull/6600) * [HackerOne](https://hackerone.com/reports/1579820) ### Para más información Si presenta alguna pregunta o comentario sobre este aviso: * Cree un post en [nextcloud/security-advisories](https://github.com/nextcloud/security-advisories/discussions) * Clientes: Abra un ticket de soporte en [support.nextcloud.com](https://support.nextcloud.com)

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

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

2022-05-18 CVE Reserved
2022-07-06 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-09-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-287: Improper Authentication
CWE-639: Authorization Bypass Through User-Controlled Key

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhv7-5mhv-299j	2024-08-03

URL	Date	SRC
https://github.com/nextcloud/mail/pull/6600	2023-06-29
https://github.com/nextcloud/mail/pull/6600/commits/6dd2527be8d4f6788b449c8a8f5577628b990605	2023-06-29

URL	Date	SRC

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 Mail Search vendor "Nextcloud" for product "Nextcloud Mail"				< 1.12.2 Search vendor "Nextcloud" for product "Nextcloud Mail" and version " < 1.12.2"		-		Affected