CVE-2021-39807 — Improper Privilege Management in Google Android

CWE-269 — Improper Privilege Management5 documents5 sources

Severity

7.8HIGHNVD

EPSS

0.0%

top 98.45%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Platform Packages Apps Settings Google Android

Timeline

PublishedApr 12

Latest updateApr 13

Description

In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-209446496

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-10 Android-11 Android-12 Android-12L

▶NVDgoogle/android4 versions+3

▶Androidplatform/packages_apps_settings10:0 — 10:2022-04-05+3

Patches

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

🔴Vulnerability Details

GHSA

GHSA-fvhw-88h4-wrgq: In handleNfcStateChanged of SecureNfcEnabler↗2022-04-13

▶

CVEList

CVE-2021-39807: In handleNfcStateChanged of SecureNfcEnabler↗2022-04-12

▶

OSV

CVE-2021-39807: In handleNfcStateChanged of SecureNfcEnabler↗2022-04-01

▶

📋Vendor Advisories

Android

CVE-2021-39807: Android Security Bulletin 2022-04-01 CVE: CVE-2021-39807 Severity: HIGH Type: EoP Affected AOSP versions: 10, 11, 12, 12L References: A-209446496↗2022-04-01

▶