CVE-2021-41166

Permission bypass in Nextcloud Android App

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.

La aplicación Android de Nextcloud es el cliente Android para Nextcloud, una plataforma de productividad auto-alojada. Un problema en las versiones anteriores a 3.17.1 puede conllevar a una divulgación de información confidencial. Una aplicación no autorizada que no tenga el permiso "MANAGE_DOCUMENTS" requerido puede visualizar las miniaturas de las imágenes que no presenta permiso para visualizar. La versión 3.17.1 contiene un parche. No se presentan medidas de mitigación conocidas

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-15 CVE Reserved
2022-01-26 CVE Published
2024-08-04 CVE Updated
2024-09-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-276: Incorrect Default Permissions

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086	2022-02-02
https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c	2022-02-02
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4	2022-02-02

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 Search vendor "Nextcloud" for product "Nextcloud"				< 3.17.1 Search vendor "Nextcloud" for product "Nextcloud" and version " < 3.17.1"		android		Affected