CVE-2021-39697 — Missing Authorization in Packages Providers Downloadprovider

CWE-862 — Missing AuthorizationCWE-281 — Improper Preservation of Permissions5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 98.45%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Platform Packages Providers DownloadproviderGoogle Android
Timeline
PublishedMar 16
Latest updateMar 17

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5google/androidAndroid-11 Android-12
▶NVDgoogle/android11.0, 12.0+1
▶Androidplatform/packages_providers_downloadprovider11:0 — 11:2022-03-01+2

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-93fw-jj7x-4xh7: In checkFileUriDestination of DownloadProvider↗2022-03-17
▶
CVEList
CVE-2021-39697: In checkFileUriDestination of DownloadProvider↗2022-03-16
▶
OSV
CVE-2021-39697: In checkFileUriDestination of DownloadProvider↗2022-03-01
▶

📋Vendor Advisories

1
Android
CVE-2021-39697: Android Security Bulletin 2022-03-01 CVE: CVE-2021-39697 Severity: HIGH Type: EoP Affected AOSP versions: 11, 12 References: A-200813547 [2]↗2022-03-01
▶
CVE-2021-39697 — Missing Authorization | cvebase