CVE-2023-21369 : Exploit Details and Defense Strategies

This CVE-2023-21369 was published by Google Android on October 30, 2023, involving a Denial of Service vulnerability related to Usage Access in Android version 14. The vulnerability allows a settings usage access restriction toggle screen to be displayed due to a permissions bypass, potentially leading to local denial of service without requiring additional execution privileges. User interaction is necessary for the exploitation of this vulnerability.

Understanding CVE-2023-21369

This section will provide an in-depth understanding of CVE-2023-21369, its impact, technical details, and mitigation strategies.

What is CVE-2023-21369?

CVE-2023-21369 is a Denial of Service vulnerability associated with Usage Access in Android version 14. The flaw allows for the display of a settings usage access restriction toggle screen through a permissions bypass, potentially resulting in local denial of service without the need for additional execution privileges.

The Impact of CVE-2023-21369

The impact of CVE-2023-21369 lies in the potential local denial of service that could be triggered by exploiting the permissions bypass in Usage Access. This vulnerability could disrupt the normal functioning of the affected system without requiring additional execution privileges, highlighting the significance of addressing this issue promptly.

Technical Details of CVE-2023-21369

To effectively address CVE-2023-21369, understanding its technical aspects including the vulnerability description, affected systems and versions, and exploitation mechanism is crucial.

Vulnerability Description

The vulnerability in Usage Access allows for the display of a settings usage access restriction toggle screen through a permissions bypass, potentially leading to local denial of service without requiring additional execution privileges. This indicates a flaw in the access control mechanism of Android version 14.

Affected Systems and Versions

The vulnerability impacts systems running Google's Android version 14. Specifically, devices operating on this version are susceptible to the permissions bypass issue in Usage Access that could result in a denial of service scenario.

Exploitation Mechanism

In order to exploit CVE-2023-21369, an attacker would need to bypass permissions in the Usage Access feature to display a settings usage access restriction toggle screen. By manipulating user interaction, the attacker could potentially trigger a denial of service without additional execution privileges.

Mitigation and Prevention

Addressing CVE-2023-21369 requires proactive mitigation and prevention measures to safeguard affected systems and prevent potential exploitation.

Immediate Steps to Take

Users and administrators are advised to apply security patches provided by Google for Android version 14 to remediate the Denial of Service vulnerability in Usage Access. It is crucial to stay updated with security advisories and promptly implement recommended fixes.

Long-Term Security Practices

Implementing robust access control measures, regular security assessments, and user awareness training can enhance the overall security posture of systems to mitigate risks associated with vulnerabilities like CVE-2023-21369. By adopting a proactive security approach, organizations can better protect their systems from potential threats.

Patching and Updates

Regularly monitoring for security updates and promptly applying patches released by Google for Android version 14 can help mitigate the risks posed by CVE-2023-21369. Keeping systems up to date with the latest security enhancements is essential in addressing vulnerabilities and ensuring overall system security.