CVE-2023-20785 : What You Need to Know

This CVE record was assigned by MediaTek and published on August 7, 2023. It pertains to a vulnerability in audio that could potentially lead to a local escalation of privilege without the need for user interaction.

Understanding CVE-2023-20785

This section will delve deeper into the details of CVE-2023-20785, including the vulnerability description, impact, affected systems, and mitigation measures.

What is CVE-2023-20785?

CVE-2023-20785 involves a possible out-of-bounds write in audio due to a missing bounds check. Exploiting this vulnerability could result in a local escalation of privilege, requiring System execution privileges without any user interaction.

The Impact of CVE-2023-20785

The impact of this vulnerability lies in the potential for malicious actors to gain elevated privileges on the affected systems, which could lead to further exploitation and compromise of sensitive data.

Technical Details of CVE-2023-20785

In this section, we will explore the technical aspects of CVE-2023-20785, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability involves an out-of-bounds write in audio that lacks proper bounds checking, presenting an opportunity for attackers to exploit it for local privilege escalation.

Affected Systems and Versions

The following MediaTek products are affected by CVE-2023-20785: MT6779, MT6781, MT6785, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT8168, MT8781, MT8791, MT8797. The vulnerability affects systems running Android 12.0 and 13.0.

Exploitation Mechanism

The exploitation of CVE-2023-20785 could be carried out by leveraging the out-of-bounds write in the audio component to gain unauthorized access and escalate privileges on the affected devices.

Mitigation and Prevention

To address CVE-2023-20785 and prevent potential exploitation, it is crucial to take immediate steps, adopt long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Immediately applying the provided patch (Patch ID: ALPS07628524, Issue ID: ALPS07628524) from MediaTek is essential to mitigate the vulnerability and prevent unauthorized privilege escalation.

Long-Term Security Practices

Implementing robust security measures, such as regular security assessments, enforcing the principle of least privilege, and maintaining updated security protocols, can enhance the overall resilience of systems against similar vulnerabilities.

Patching and Updates

Ensuring that all affected systems are updated with the latest security patches and firmware updates from MediaTek is critical to address CVE-2023-20785 and safeguard against potential security risks.