PT-2023-17730 · Google · Android

Published 2023-02-01 · Updated 2025-03-21 · CVE-2023-20940

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 version Android-13

Description The issue is related to improperly used crypto in the Android operating system, allowing for the replacement of a boot partition. This could lead to local escalation of privilege without needing additional execution privileges. User interaction is not required for exploitation.

Recommendations For Android version Android-13, update to a version that includes the fix for this issue, as identified by Android ID A-256237041.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

ASB-A-256237041

CVE-2023-20940

Affected Products

Android

References · 7

• https://source.android.com/security/bulletin/2023-02-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-20940 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-256237041 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20940 · Security Note
• https://android.googlesource.com/platform/build/+/ced530443431f078c6a694f12df989feb763f36d · Note
• https://t.me/cvenotify/115716 · Telegram Post
• https://t.me/cibsecurity/59128 · Telegram Post