6.0
MEDIUM
CVE-2021-25490
Google Keymaster Keyblob Downgrade Allow Privileged Process IV Reuse
Description

A keyblob downgrade attack in keymaster prior to SMR Oct-2021 Release 1 allows attacker to trigger IV reuse vulnerability with privileged process.

INFO

Published Date :

Oct. 6, 2021, 6:15 p.m.

Last Modified :

Aug. 1, 2022, 12:03 p.m.

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

0.8
Public PoC/Exploit Available at Github

CVE-2021-25490 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-25490 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google android
1 Samsung dex
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-25490.

URL Resource
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Shell Makefile C Python

Updated: 4 months ago
112 stars 29 fork 29 watcher
Born at : Feb. 20, 2022, 5:54 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-25490 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-25490 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Aug. 01, 2022

    Action Type Old Value New Value
    Removed CWE NIST NVD-CWE-noinfo
    Added CWE NIST NVD-CWE-Other
  • Initial Analysis by [email protected]

    Oct. 13, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 No Types Assigned https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:* *cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:* *cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-25490 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10280

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability