CVE-2023-21252 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-21252, a vulnerability affecting Google's Android operating system.

Understanding CVE-2023-21252

CVE-2023-21252 is a vulnerability that can lead to a local denial of service on devices running certain versions of the Android operating system. The vulnerability lies in the

validatePassword

function of WifiConfigurationUtil.java.

What is CVE-2023-21252?

The vulnerability in the

validatePassword

function of WifiConfigurationUtil.java allows an attacker to trigger a device's boot loop, resulting in a denial of service condition. Importantly, this exploit does not require any additional execution privileges, and user interaction is not necessary for exploitation.

The Impact of CVE-2023-21252

The impact of CVE-2023-21252 is significant as it can potentially render affected devices unusable by causing them to enter a boot loop. This can disrupt normal device functionality and result in a denial of service for the user.

Technical Details of CVE-2023-21252

This section delves into the technical aspects of CVE-2023-21252, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in the

validatePassword

function of WifiConfigurationUtil.java allows for improper input validation, leading to a boot loop scenario that can result in a denial of service condition.

Affected Systems and Versions

The vulnerability impacts devices running Google's Android operating system versions 11, 12, 12L, and 13. These versions are deemed as affected, highlighting the widespread nature of the vulnerability across different Android releases.

Exploitation Mechanism

Exploiting CVE-2023-21252 involves triggering the improper input validation in the

validatePassword

function of WifiConfigurationUtil.java, which can lead to the device entering a boot loop without requiring any additional execution privileges.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-21252, it is crucial to take immediate steps, implement long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Users and administrators are advised to be cautious while interacting with password validation processes on Android devices to prevent triggering the vulnerability inadvertently.

Long-Term Security Practices

Implementing robust security measures such as regularly updating software, using strong passwords, and practicing security hygiene can help in safeguarding devices against potential exploits like CVE-2023-21252.

Patching and Updates

Google may release security patches to address CVE-2023-21252. It is essential for users to stay informed about security bulletins and promptly apply any patches or updates provided by the manufacturer to protect their devices from exploitation.