CVE-2023-20953 : Security Advisory and Response

This CVE record was published on March 24, 2023, by Google Android. The vulnerability involves a potential way to bypass factory reset protection in Android devices, leading to a local escalation of privilege without requiring additional execution privileges. User interaction is necessary for the exploitation of this vulnerability.

Understanding CVE-2023-20953

This section provides an insight into the nature and impact of CVE-2023-20953.

What is CVE-2023-20953?

CVE-2023-20953 is a vulnerability found in the ClipboardListener.java file in Android devices. The issue stems from an incorrect user interface being displayed before the setup completion, potentially allowing an attacker to bypass factory reset protection.

The Impact of CVE-2023-20953

The impact of this vulnerability is the local escalation of privilege on affected Android devices. By exploiting this flaw, an attacker could gain elevated privileges without needing additional execution permissions, posing a security risk to device integrity and user data.

Technical Details of CVE-2023-20953

Delve deeper into the technical aspects of CVE-2023-20953 to understand its implications.

Vulnerability Description

The vulnerability lies in the onPrimaryClipChanged function of ClipboardListener.java, allowing malicious actors to manipulate the UI during setup and bypass factory reset protection, ultimately leading to privilege escalation.

Affected Systems and Versions

The affected product is Android, specifically version Android-13. Devices running Android-13 are vulnerable to the exploitation of CVE-2023-20953, potentially compromising their security.

Exploitation Mechanism

To exploit CVE-2023-20953, an attacker would need to interact with the device during the setup process, leveraging the incorrect UI display to bypass factory reset protection and escalate privileges locally.

Mitigation and Prevention

Learn about the steps to mitigate the risks associated with CVE-2023-20953 and prevent potential exploitation.

Immediate Steps to Take

Users should exercise caution while interacting with their Android devices, especially during the initial setup phase. Being vigilant and mindful of any unusual UI prompts can help prevent the exploitation of this vulnerability.

Long-Term Security Practices

Implementing strong security practices, such as regularly updating device software, avoiding suspicious links or downloads, and practicing safe browsing habits, can enhance overall device security and mitigate the risk of CVE-2023-20953 exploitation.

Patching and Updates

Staying informed about security updates from Android and promptly applying patches released to address CVE-2023-20953 is crucial. Regularly checking for software updates can help ensure that devices are protected against known vulnerabilities and security threats.