CVE-2023-4746 Explained : Impact and Mitigation

This CVE pertains to a critical vulnerability found in TOTOLINK N200RE V5 9.3.5u.6437_B20230519, impacting the Validity_check function due to a format string issue.

Understanding CVE-2023-4746

This section will delve into what CVE-2023-4746 entails, including its impact, technical details, and mitigation strategies.

What is CVE-2023-4746?

The vulnerability in TOTOLINK N200RE V5 9.3.5u.6437_B20230519 allows for remote attacks through a format string manipulation, potentially resulting in OS command injection. The issue arises from a format string vulnerability, enabling bypassing of validation measures.

The Impact of CVE-2023-4746

The impact of this vulnerability is deemed as high, with a CVSS score of 8.8. The exploit, labeled as VDB-238635, has been disclosed to the public, posing a serious risk of compromising affected systems and potentially executing unauthorized commands.

Technical Details of CVE-2023-4746

This section will provide a deeper insight into the vulnerability, its affected systems, and the exploitation mechanism involved.

Vulnerability Description

The vulnerability stems from a format string weakness in TOTOLINK N200RE V5 9.3.5u.6437_B20230519, specifically in the Validity_check function, allowing for potential OS command injection with remote attack capabilities.

Affected Systems and Versions

The impacted system identified in this CVE is the TOTOLINK N200RE V5 with version 9.3.5u.6437_B20230519. Users operating on this version are vulnerable to the format string manipulation exploit.

Exploitation Mechanism

Exploiting this vulnerability involves leveraging the format string weakness in the Validity_check function to bypass validation measures, potentially leading to the execution of malicious commands on the target system.

Mitigation and Prevention

This segment outlines the necessary steps to mitigate the risks associated with CVE-2023-4746 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to apply security patches provided by TOTOLINK promptly. Additionally, implementing network-level security measures and access controls can help reduce the risk of unauthorized system access.

Long-Term Security Practices

In the long term, maintaining up-to-date software versions, conducting regular vulnerability assessments, and fostering a security-conscious culture within organizations are crucial to bolstering overall cybersecurity posture.

Patching and Updates

Regularly checking for and applying security patches released by TOTOLINK for the affected N200RE V5 version is essential to address the format string vulnerability and prevent potential exploitation.