CVE-2021-43863 Information

Description

The Nextcloud Android app is the Android client for Nextcloud a self-hosted productivity platform. The Nextcloud Android app uses content providers to manage its data. Prior to version 3.18.1 the providers FileContentProvider and DiskLruImageCacheFileProvider have security issues (an SQL injection and an insufficient permission control respectively) that allow malicious apps in the same device to access Nextcloud’s data bypassing the permission control system. Users should upgrade to version 3.18.1 to receive a patch. There are no known workarounds aside from upgrading.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479 https://hackerone.com/reports/1358597 https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95db95

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5