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 for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

THREAT INTELLIGENCE:
There are currently no reports of these vulnerabilities being exploited in the wild

SYSTEMS AFFECTED:​​​​​

• Google Chrome versions prior to 113.0.5672.126/.127 for Windows.
• Google Chrome versions prior to 113.0.5672.126 for Mac and Linux.

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

TECHNICAL SUMMARY:
Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Details of these vulnerabilities are as follows:

Tactic: Initial Access (TA0001):

Technique: Drive-By Compromise (T1189):

• Use after free in Navigation. (CVE-2023-2721)
• Use after free in Autofill UI. (CVE-2023-2722)
• Use after free in DevTools. (CVE-2023-2723)
• Type Confusion in V8. (CVE-2023-2724)
• Use after free in Guest View. (CVE-2023-2725)
• Inappropriate implementation in WebApp Installs. (CVE-2023-2726)

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

RECOMMENDATIONS:
Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Details of these vulnerabilities are as follows:

Tactic: Initial Access (TA0001):

Technique: Drive-By Compromise (T1189):

• Use after free in Navigation. (CVE-2023-2721)
• Use after free in Autofill UI. (CVE-2023-2722)
• Use after free in DevTools. (CVE-2023-2723)
• Type Confusion in V8. (CVE-2023-2724)
• Use after free in Guest View. (CVE-2023-2725)
• Inappropriate implementation in WebApp Installs. (CVE-2023-2726)

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

REFERENCES:

Google:
https://chromereleases.googleblog.com/2023/05/stable-channel-update-for-desktop_16.html

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2721
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2722
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2723
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2724
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2725
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2726

‍