5.3

CVE-2021-41166

Permission bypass in Nextcloud Android App

Permission bypass in DiskLruImageCacheFileProvider (GHSL-2021-1008)

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.
Mögliche Gegenmaßnahme
Android: None.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nextcloud ≫ Nextcloud SwPlatformandroid Version < 3.17.1
Weitere Schwachstelleninformationen
SystemNextcloud App
≫
Produkt Android
Version < 3.17.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.95% 0.565
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:P/I:N/A:N
security-advisories@github.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-276 Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

https://hackerone.com/reports/1358597
Permissions Required
https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086
Patch
Third Party Advisory
https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c
Patch
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4
Patch
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4
Third Party Advisory