CVE-2023-45984 : Exploit Details and Defense Strategies

This article provides insights into CVE-2023-45984, a vulnerability impacting TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022, enabling a stack overflow through the lang parameter in the setLanguageCfg function.

Understanding CVE-2023-45984

In this section, we will delve into the details of the CVE-2023-45984 vulnerability.

What is CVE-2023-45984?

CVE-2023-45984 involves a stack overflow issue within TOTOLINK routers, specifically the X5000R V9.1.0u.6118_B20201102 and A7000R V9.1.0u.6115_B20201022 models. The vulnerability is triggered via the lang parameter in the setLanguageCfg function.

The Impact of CVE-2023-45984

Exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or trigger a denial of service (DoS) condition, compromising the affected devices' security and functionality.

Technical Details of CVE-2023-45984

Let's explore the technical aspects of CVE-2023-45984 in this section.

Vulnerability Description

The vulnerability arises due to insufficient input validation on the lang parameter in the setLanguageCfg function, leading to a stack overflow condition.

Affected Systems and Versions

TOTOLINK X5000R V9.1.0u.6118_B20201102
TOTOLINK A7000R V9.1.0u.6115_B20201022

Exploitation Mechanism

Malicious actors can exploit this flaw by sending specially crafted lang parameter values to the affected TOTOLINK routers, potentially executing arbitrary code or causing a DoS scenario.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-45984 is crucial for ensuring the security of your systems.

Immediate Steps to Take

Apply security patches provided by TOTOLINK to address the vulnerability.
Restrict network access to vulnerable devices and employ network segmentation.

Long-Term Security Practices

Regularly update and patch all network-connected devices to prevent known vulnerabilities.
Implement strong access control measures and monitor network traffic for suspicious activities.

Patching and Updates

Stay informed about security advisories from TOTOLINK and promptly apply relevant patches and firmware updates to secure your TOTOLINK routers.