CVE-2023-20813 : Security Advisory and Response

This CVE was assigned by MediaTek and published on August 7, 2023. It involves a vulnerability in the wlan service that could lead to local information disclosure with system execution privileges without the need for user interaction.

Understanding CVE-2023-20813

This section will delve into what CVE-2023-20813 entails, its impact, technical details, and mitigation strategies.

What is CVE-2023-20813?

CVE-2023-20813 is a vulnerability in the wlan service that stems from improper input validation. It presents a possible out-of-bounds read exploit that could potentially result in local information disclosure. Notably, this exploit requires system execution privileges but does not necessitate user interaction for exploitation.

The Impact of CVE-2023-20813

The impact of CVE-2023-20813 is significant as it could allow malicious actors to access sensitive information locally. This type of vulnerability, known as Information Disclosure, poses a serious risk to the confidentiality of data stored on affected systems.

Technical Details of CVE-2023-20813

In this section, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism associated with CVE-2023-20813.

Vulnerability Description

The vulnerability in the wlan service arises from improper input validation, leading to a possible out-of-bounds read exploit. This flaw could be exploited to disclose sensitive information without the need for user interaction.

Affected Systems and Versions

The vulnerability affects various MediaTek products such as MT6580, MT6739, MT6761, MT6765, and others. Specifically, systems running Android 12.0 and 13.0 are impacted by CVE-2023-20813.

Exploitation Mechanism

The exploitation of CVE-2023-20813 does not require user interaction, as the vulnerability could be leveraged by an attacker with system execution privileges to disclose local information.

Mitigation and Prevention

To address the risks associated with CVE-2023-20813, it is crucial to implement immediate steps, adopt long-term security practices, and prioritize patching and updates.

Immediate Steps to Take

Organizations should promptly apply patches and updates provided by MediaTek to mitigate the vulnerability. Additionally, implementing access controls and monitoring for unusual activity can help detect and prevent exploitation.

Long-Term Security Practices

In the long term, organizations should prioritize strong security measures, such as regular security assessments, training staff on security best practices, and maintaining an incident response plan to address potential threats effectively.

Patching and Updates

Ensuring that systems are regularly updated with the latest security patches from the vendor is essential to protect against CVE-2023-20813. Organizations should stay informed about security bulletins and promptly apply any recommended patches to safeguard their systems.