PT-2021-13061 · Google · Android

Published 2021-03-10 · Updated 2022-07-12 · CVE-2021-0383

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Android versions Android-11

Description: The issue is related to a confused deputy in CaptivePortalLoginActivity.java, which could lead to local escalation of privilege in carrier settings. No additional execution privileges are needed for exploitation, and user interaction is not required.

Recommendations: For Android version Android-11, consider restricting access to the CaptivePortalLoginActivity to minimize the risk of exploitation until a patch is available. As a temporary workaround, review and limit the privileges assigned to carrier settings to reduce the potential impact of this issue.

Fix

Related Identifiers

CVE-2021-0383

Affected Products

Android

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-0383 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-03-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0383 · Vendor Advisory
• https://t.me/cibsecurity/24714 · Telegram Post