CVE-2021-39794 — Incorrect Default Permissions in Google Android

CWE-276 — Incorrect Default Permissions4 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 90.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Platform Frameworks BaseGoogle Android
Timeline
PublishedApr 12
Latest updateApr 13

Description

In broadcastPortInfo of AdbService.java, there is a possible way for apps to run code as the shell user, if wireless debugging is enabled, due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-205836329

CVSS vector

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

Affected Packages4 packages

▶CVEListV5google/androidAndroid-11 Android-12 Android-12L
▶NVDgoogle/android11.0, 12.0, 12.1+2
▶Androidplatform/frameworks_base11:0 — 11:2022-04-01+2

🔴Vulnerability Details

2
GHSA
GHSA-qq26-67cv-q98h: In broadcastPortInfo of AdbService↗2022-04-13
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OSV
CVE-2021-39794: In broadcastPortInfo of AdbService↗2022-04-01
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📋Vendor Advisories

1
Android
CVE-2021-39794: Android Security Bulletin 2022-04-01 CVE: CVE-2021-39794 Severity: HIGH Type: EoP Affected AOSP versions: 11, 12, 12L References: A-205836329↗2022-04-01
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CVE-2021-39794 — Incorrect Default Permissions | cvebase