Google Chrome up to 86.0.4240.198 on ChromeOS cryptohome access control

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.
6.8$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Google Chrome on ChromeOS. Impacted is an unknown function of the component cryptohome. Such manipulation leads to access control. This vulnerability is referenced as CVE-2020-16020. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Google Chrome on ChromeOS (Web Browser). It has been rated as critical. Affected by this issue is an unknown code block of the component cryptohome. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The weakness was published 01/09/2021. The advisory is shared for download at crbug.com. This vulnerability is handled as CVE-2020-16020. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/24/2024). It is expected to see the exploit prices for this product increasing in the near future.The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 209562 (Google Chrome < 87.0.4280.67 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 87.0.4280.66 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209562). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209562
Nessus Name: Google Chrome < 87.0.4280.67 Multiple Vulnerabilities

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 87.0.4280.66

Timelineinfo

07/27/2020 🔍
01/09/2021 +166 days 🔍
01/09/2021 +0 days 🔍
05/04/2025 +1576 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: crbug.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-16020 (🔍)
GCVE (CVE): GCVE-0-2020-16020
GCVE (VulDB): GCVE-100-167480

Entryinfo

Created: 01/09/2021 12:53
Updated: 05/04/2025 14:24
Changes: 01/09/2021 12:53 (41), 02/10/2021 15:29 (5), 02/10/2021 15:32 (18), 10/24/2024 05:19 (18), 05/04/2025 14:24 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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