CVE-2021-41166
MEDIUM severity · CVSS 4.3 · CWE-276
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086 ↗
Additional information
- NVD record
- https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086Patch
- https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0cPatch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4Patch
- https://hackerone.com/reports/1358597