VDB-173909 · CVE-2021-21216 · GCVE-0-2021-21216

Google Chrome prior 90.0.4430.72 Autofill authentication spoofing

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$5k-$25k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Google Chrome. Affected is an unknown function of the component Autofill. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2021-21216. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome (Web Browser). This issue affects an unknown functionality of the component Autofill. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is confidentiality, integrity, and availability.

The weakness was shared 04/27/2021. The advisory is shared at crbug.com. The identification of this vulnerability is CVE-2021-21216. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/30/2021). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 90.0.4430.72 eliminates this vulnerability.

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Productinfo

Type

Web Browser

Vendor

Google

Name

Chrome

License

free

Website

Vendor: https://www.google.com/
Product: https://www.google.com/chrome/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 90.0.4430.72

Timelineinfo

12/21/2020 🔍
04/27/2021 +126 days 🔍
04/27/2021 +0 days 🔍
04/30/2021 +3 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: crbug.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21216 (🔍)
GCVE (CVE): GCVE-0-2021-21216
GCVE (VulDB): GCVE-100-173909

Entryinfo

Created: 04/27/2021 05:13
Updated: 04/30/2021 09:12
Changes: 04/27/2021 05:13 (39), 04/30/2021 09:11 (5), 04/30/2021 09:12 (20)
Complete: 🔍
Cache ID: 216::103