PT-2021-16680 · Keymaster · Keymaster

Alon Shakevsky + 2 · Published 2021-10-06 · Updated 2022-08-01 · CVE-2021-25490

Positive Technologies (AI Summary)

CVSS v3.1

6.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: keymaster versions prior to SMR Oct-2021 Release 1

Description: A keyblob downgrade attack in keymaster allows an attacker to trigger an IV reuse issue with a privileged process.

Recommendations: For versions prior to SMR Oct-2021 Release 1, update to SMR Oct-2021 Release 1 or later to resolve the issue.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-25490

Affected Products

Keymaster

References · 4

• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-25490 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-25490 · Security Note
• https://t.me/true_secator/2682 · Telegram Post