CVE-2023-48804 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2023-48804, including its description, impact, technical details, and mitigation steps.

Understanding CVE-2023-48804

CVE-2023-48804 refers to a vulnerability found in TOTOLINK X6000R V9.4.0cu.852_B20230719 that can lead to command execution due to insecure handling of user input.

What is CVE-2023-48804?

In TOTOLINK X6000R V9.4.0cu.852_B20230719, a vulnerability exists in the shttpd file's sub_4119A0 function. This vulnerability arises when user input is not properly sanitized before being passed to the CsteSystem function, allowing for command execution.

The Impact of CVE-2023-48804

This vulnerability can be exploited by attackers to execute arbitrary commands on the affected system, potentially leading to unauthorized access, data loss, or system compromise.

Technical Details of CVE-2023-48804

The following technical details outline the vulnerability:

Vulnerability Description

The shttpd file's sub_4119A0 function in TOTOLINK X6000R V9.4.0cu.852_B20230719 does not properly validate user input, leading to a command execution vulnerability.

Affected Systems and Versions

The vulnerability affects TOTOLINK X6000R V9.4.0cu.852_B20230719.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious input that is not adequately sanitized by the application, enabling them to execute arbitrary commands.

Mitigation and Prevention

Protect your systems from CVE-2023-48804 by following these mitigation steps:

Immediate Steps to Take

Update the TOTOLINK X6000R firmware to a secure version that addresses the vulnerability.
Restrict network access to vulnerable devices.

Long-Term Security Practices

Regularly monitor for security updates and patches from TOTOLINK.
Implement strong input validation mechanisms in applications to prevent command injection attacks.

Patching and Updates

Stay informed about security advisories and apply patches recommended by the vendor to ensure the ongoing security of your systems.