CVE-2023-21251 Explained : Impact and Mitigation

This CVE record, assigned by google_android, was published on July 12, 2023. It pertains to a vulnerability in Android versions 11, 12, 12L, and 13 that could lead to local escalation of privilege.

Understanding CVE-2023-21251

This section will delve into the details of the CVE-2023-21251 vulnerability, including its impact, technical description, affected systems, and mitigation strategies.

What is CVE-2023-21251?

The vulnerability in ConfirmDialog.java allows for a possible connection to VNP without the user's consent due to improper input validation. This flaw could result in local privilege escalation, requiring user execution privileges for exploitation.

The Impact of CVE-2023-21251

The impact of this vulnerability is significant as it could allow malicious actors to escalate their privileges locally, potentially leading to unauthorized access and control over the affected device.

Technical Details of CVE-2023-21251

In this section, we will explore the technical aspects of CVE-2023-21251, including vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the onCreate function of ConfirmDialog.java, where improper input validation allows for unauthorized VNP connections, bypassing the user's consent. This loophole could be exploited for local privilege escalation.

Affected Systems and Versions

The vulnerability affects Android versions 11, 12, 12L, and 13. Users utilizing these versions may be at risk of local privilege escalation if the vulnerability is exploited.

Exploitation Mechanism

To exploit this vulnerability, an attacker would need user interaction to trigger the improper input validation in ConfirmDialog.java, enabling them to establish a connection to VNP without the necessary consent.

Mitigation and Prevention

In this section, we will discuss the recommended steps to mitigate the risks associated with CVE-2023-21251 and prevent potential exploitation.

Immediate Steps to Take

Android users should exercise caution while interacting with unknown or suspicious apps and dialog boxes to prevent social engineering attacks leveraging this vulnerability. Additionally, users should refrain from granting unnecessary permissions to apps.

Long-Term Security Practices

To enhance device security in the long term, users should regularly update their Android devices to the latest software versions provided by Google. Staying informed about security best practices and maintaining a cautious approach to app permissions can also contribute to a more secure mobile experience.

Patching and Updates

Google is likely to release patches or security updates to address the CVE-2023-21251 vulnerability in affected Android versions. It is crucial for users to promptly install these updates to safeguard their devices against potential exploitation of the vulnerability.