CVE-2023-21175 : What You Need to Know

This CVE record pertains to a security vulnerability affecting Android devices, specifically related to enabling or disabling mobile data by a guest user through a permissions bypass. The vulnerability could potentially lead to local escalation of privilege without the need for additional execution privileges.

Understanding CVE-2023-21175

This section delves deeper into the nature of CVE-2023-21175, highlighting its impact and technical details.

What is CVE-2023-21175?

CVE-2023-21175 involves a flaw in the

onCreate

function of DataUsageSummary.java that allows a guest user to manipulate mobile data settings, leading to a permissions bypass and potential privilege elevation on Android devices running Android-13. The exploitation of this vulnerability does not require any user interaction.

The Impact of CVE-2023-21175

The impact of this vulnerability lies in the ability of unauthorized users, specifically guest users, to alter mobile data settings, potentially gaining escalated privileges on the affected devices. This could lead to unauthorized access to sensitive information or functionalities.

Technical Details of CVE-2023-21175

Further details regarding the vulnerability's description, affected systems and versions, as well as the exploitation mechanism are outlined in this section.

Vulnerability Description

The vulnerability in DataUsageSummary.java allows guest users to manipulate mobile data without the necessary permissions, resulting in a local privilege escalation issue. This could be exploited to gain unauthorized access to system resources and sensitive data.

Affected Systems and Versions

The vulnerability affects Android devices running Android-13. Specifically, devices with this version are susceptible to the permissions bypass that enables unauthorized users to control mobile data settings.

Exploitation Mechanism

The exploitation of CVE-2023-21175 involves leveraging the permissions bypass within the onCreate function of DataUsageSummary.java to enable or disable mobile data, granting unauthorized access to system privileges.

Mitigation and Prevention

To address CVE-2023-21175 and mitigate its potential risks, immediate actions as well as long-term security practices and patching updates are crucial.

Immediate Steps to Take

Users and organizations should consider limiting guest access to Android devices to prevent unauthorized manipulation of mobile data settings. Additionally, implementing strict permission controls and monitoring system activities can help detect and prevent privilege escalation attempts.

Long-Term Security Practices

In the long term, maintaining up-to-date software versions, conducting regular security audits, and educating users on safe computing practices can enhance overall security posture and mitigate the risks associated with vulnerabilities like CVE-2023-21175.

Patching and Updates

It is essential for users to stay informed about security bulletins and patches released by Android to address vulnerabilities such as CVE-2023-21175. Applying timely updates and patches to the operating system and relevant applications can help secure devices against known threats.