Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

ITS Advisory Number: 
2020-069
Date(s) Issued: 
Wednesday, May 20, 2020
Subject: 
Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution
Overview: 
Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Google Chrome is a web browser used to access the Internet. Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights. THREAT INTELLIGENCE: There is currently no reports of these vulnerabilities being exploited in the wild.
Systems Affected: 
  • Google Chrome versions prior to 83.0.4103.61
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. These vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page. Details of the vulnerabilities are as follows: 

  • CVE-2020-6465: Use after free in reader mode.

  • CVE-2020-6466: Use after free in media.

  • CVE-2020-6467: Use after free in WebRTC.

  • CVE-2020-6468: Type Confusion in V8.

  • CVE-2020-6469: Insufficient policy enforcement in developer tools.

  • CVE-2020-6470: Insufficient validation of untrusted input in clipboard.

  • CVE-2020-6471: Insufficient policy enforcement in developer tools.

  • CVE-2020-6472: Insufficient policy enforcement in developer tools.

  • CVE-2020-6473: Insufficient policy enforcement in Blink.

  • CVE-2020-6474: Use after free in Blink.

  • CVE-2020-6475: Incorrect security UI in full screen.

  • CVE-2020-6476: Insufficient policy enforcement in tab strip.

  • CVE-2020-6477: Inappropriate implementation in installer.

  • CVE-2020-6478: Inappropriate implementation in full screen.

  • CVE-2020-6479: Inappropriate implementation in sharing.

  • CVE-2020-6480: Insufficient policy enforcement in enterprise.

  • CVE-2020-6481: Insufficient policy enforcement in URL formatting.

  • CVE-2020-6482: Insufficient policy enforcement in developer tools.

  • CVE-2020-6483: Insufficient policy enforcement in payments.

  • CVE-2020-6484: Insufficient data validation in ChromeDriver.

  • CVE-2020-6485: Insufficient data validation in media router.

  • CVE-2020-6486: Insufficient policy enforcement in navigations.

  • CVE-2020-6487: Insufficient policy enforcement in downloads.

  • CVE-2020-6488: Insufficient policy enforcement in downloads.

  • CVE-2020-6489: Inappropriate implementation in developer tools.

  • CVE-2020-6490: Insufficient data validation in loader.

  • CVE-2020-6491: Incorrect security UI in site information. 

Successful exploitation of the most severe of these vulnerabilities could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with the application, an attacker could view, change, or delete data. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

Actions: 
  • After appropriate testing, immediately apply the stable channel update provided by Google to vulnerable systems.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.

References: 

Google:
https://chromereleases.googleblog.com/2020/05/stable-channel-update-for-...

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6465
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6466
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6467
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6468
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6469
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6470
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6471
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6472
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6473
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6474
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6475
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6476
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6477
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6478
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6479
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6480
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6481
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6482
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6483
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6484
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6485
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6486
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6487
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6488
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6489
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6490
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6491