CVE-2023-20702 : Vulnerability Insights and Analysis

This CVE record was published by MediaTek on November 6, 2023, highlighting a vulnerability in 5G NRLC that could potentially lead to remote denial of service attacks. The issue stems from an invalid memory access due to a lack of error handling, posing a risk to various MediaTek products.

Understanding CVE-2023-20702

This section provides an insight into the nature of CVE-2023-20702, its impact, technical details, and mitigation strategies.

What is CVE-2023-20702?

The vulnerability in CVE-2023-20702 exists in 5G NRLC and could result in a remote denial of service attack. The flaw is attributed to a potential invalid memory access due to inadequate error handling. Attackers could exploit this without the need for user interaction, making it a critical security concern.

The Impact of CVE-2023-20702

If exploited, CVE-2023-20702 could allow malicious actors to trigger remote denial of service attacks on affected MediaTek products. This could disrupt the normal operation of the systems and potentially lead to serious consequences for users and organizations relying on these devices.

Technical Details of CVE-2023-20702

Understanding the technical aspects of CVE-2023-20702 is crucial for developing effective mitigation strategies and ensuring the security of impacted systems.

Vulnerability Description

The vulnerability in question arises from a possible invalid memory access in 5G NRLC, posing a risk of remote denial of service attacks. The lack of proper error handling exacerbates this issue, making it exploitable by threat actors.

Affected Systems and Versions

Various MediaTek products are impacted by CVE-2023-20702, including MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797, and MT8798. Specifically, the versions Modem NR15, NR16, and NR17 are confirmed to be affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited remotely without the need for user interaction, making it a potential target for threat actors looking to disrupt systems and services relying on the affected MediaTek products.

Mitigation and Prevention

Addressing CVE-2023-20702 requires immediate actions to mitigate the risk of exploitation and protect vulnerable systems from potential attacks.

Immediate Steps to Take

Organizations using the affected MediaTek products should apply the provided patch ID: MOLY00921261 to address the vulnerability promptly.
Enhanced monitoring of network activity and traffic to detect any potential exploitation attempts targeting the identified vulnerability in 5G NRLC.

Long-Term Security Practices

Regular security assessments and audits to identify and address vulnerabilities in critical systems and components.
Employee training on cybersecurity best practices to promote awareness and proactive incident response capabilities within the organization.

Patching and Updates

Stay informed about security updates and patches released by MediaTek to address vulnerabilities like CVE-2023-20702. Timely installation of these updates is essential to maintain the security posture of the affected products and safeguard against potential threats.