Finished Intelligence

Summary

Shared through the Multi-State (MS)-ISAC: A vulnerability have been discovered in Google Chrome, which could result in arbitrary code execution.  Google Chrome is a web browser used to access the Internet.  This vulnerability can be exploited if a user visits, or is redirected to, a specially crafted web page.  Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code in the context of the browser.  Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.  If this application has been configured to have fewer user rights on the system, exploitation of this vulnerability could have less impact than if it was configured with administrative rights.

Details

A vulnerability has been discovered in Google Chrome, which could result in arbitrary code execution.  This vulnerability can be exploited if a user visits, or is redirected to, a specially crafted web page.  This vulnerability exists due to a use-after-free condition in FileReader (CVE-2019-5786).

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code in the context of the browser. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of this vulnerability could have less impact than if it was configured with administrative rights.[1]

Mitigation

  • Apply the stable channel update provided by Google to vulnerable systems immediately after appropriate testing.
  • 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.

CVE:  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5786      

Systems Affected

  • Google Chrome prior to 72.0.3626.121

Risk

Government:

  • Large and medium government entities:High
  • Small government entities: Medium

Businesses:

  • Large and medium business entities: High
  • Small business entities: Medium

Home users: Low

About Wapack Labs

Wapack Labs, located in New Boston, NH, is a Cyber Threat Analysis and Intelligence organization supporting the Red Sky Alliance, the FS-ISAC, and individual corporations.  For questions or comments regarding this report, please contact the lab directly by at 1-844-492-7225, or feedback@wapacklabs.com

 

[1] https://chromereleases.googleblog.com/2019/03/stable-channel-update-for-desktop.html

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