CVE-2021-39697
In checkFileUriDestination of DownloadProvider.java, there is a possible way to bypass external storage private directories protection due to a missing permission check.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In checkFileUriDestination of DownloadProvider.java, there is a possible way to bypass external storage private directories protection due to a missing permission check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-200813547
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- google/android
- Source
- security@android.com
References
- https://source.android.com/security/bulletin/2022-03-01Patch, Vendor Advisory
- https://source.android.com/security/bulletin/2022-03-01Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.