CVE-2021-43863
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.87% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-89
- Affected
- nextcloud/nextcloud
- Source
- security-advisories@github.com
References
- https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95db95Patch, Third Party Advisory
- https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479Third Party Advisory
- https://hackerone.com/reports/1358597Permissions Required
- https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95db95Patch, Third Party Advisory
- https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479Third Party Advisory
- https://hackerone.com/reports/1358597Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.