CVE-2023-21001 Explained : Impact and Mitigation

This CVE record outlines a security vulnerability identified as CVE-2023-21001 that affects Android devices. The issue was published on March 24, 2023, by Google Android after being reserved on November 3, 2022.

Understanding CVE-2023-21001

This section delves into the details of CVE-2023-21001, shedding light on the nature of the vulnerability and its potential ramifications.

What is CVE-2023-21001?

CVE-2023-21001 pertains to a vulnerability found in the onContextItemSelected function of NetworkProviderSettings.java. It allows users to modify the Wi-Fi settings of other users without the necessary permission check. This exploit can result in a local escalation of privilege without requiring additional execution privileges. Notably, this vulnerability can be exploited without user interaction.

The Impact of CVE-2023-21001

The impact of CVE-2023-21001 is significant as it can potentially lead to unauthorized users making changes to the Wi-Fi settings of other users on Android devices. This could result in a breach of privacy and compromise the security of affected devices.

Technical Details of CVE-2023-21001

This section provides a deeper dive into the technical aspects of CVE-2023-21001, including a description of the vulnerability, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in onContextItemSelected of NetworkProviderSettings.java allows users to manipulate the Wi-Fi settings of other users without the required permission check, leading to a local privilege escalation.

Affected Systems and Versions

The affected product in this case is Android, specifically version Android-13. Users running Android-13 are at risk of exploitation until a patch is implemented.

Exploitation Mechanism

The exploit takes advantage of the missing permission check in the onContextItemSelected function, enabling unauthorized users to modify Wi-Fi settings of other users on Android-13 devices.

Mitigation and Prevention

In light of CVE-2023-21001, it is crucial for users and administrators to take immediate steps to mitigate the risks posed by this vulnerability and prevent potential exploitation.

Immediate Steps to Take

Users are advised to exercise caution while accessing Wi-Fi settings on Android devices and avoid making changes in untrusted environments. Administrators should closely monitor network activity for any suspicious behavior.

Long-Term Security Practices

Implementing robust access control mechanisms and regularly updating device security features can help mitigate the risks associated with privilege escalation vulnerabilities like CVE-2023-21001.

Patching and Updates

It is imperative for users to apply security patches released by Google Android promptly to address CVE-2023-21001 and enhance the overall security posture of Android devices. Regularly updating the operating system is key to staying protected against known vulnerabilities.