CVE-2021-26613 : Security Advisory and Response

This CVE-2021-26613 article provides an in-depth understanding of the tobesoft nexacro arbitrary file creation vulnerability, its impact, technical details, and mitigation strategies.

Understanding CVE-2021-26613

CVE-2021-26613 is an improper input validation vulnerability in Nexacro 17, a product by Tobesoft Co., Ltd. This vulnerability allows an attacker to copy a file to the startup folder using the rename method.

What is CVE-2021-26613?

The CVE-2021-26613 vulnerability in Nexacro 17 by Tobesoft Co., Ltd allows malicious actors to perform arbitrary file creation by exploiting improper input validation.

The Impact of CVE-2021-26613

With a CVSS base score of 8.1, this vulnerability has a high severity impact on confidentiality, integrity, and user interaction. Attackers can leverage this flaw to execute unauthorized actions.

Technical Details of CVE-2021-26613

This section delves into the specifics of the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper input validation in Nexacro 17, enabling attackers to copy files to the startup folder using the rename method.

Affected Systems and Versions

Nexacro 17 versions less than or equal to 17.1.2.500 on the Windows platform are impacted by this vulnerability.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by utilizing the improper input validation in Nexacro 17 to copy files to the startup folder through the rename method.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-26613, immediate steps, long-term security practices, and the importance of patching and updates are highlighted below.

Immediate Steps to Take

Users are advised to update Nexacro 17 to a secure version, monitor system activity for any suspicious file modifications, and restrict unnecessary file access.

Long-Term Security Practices

Implement secure coding practices, conduct regular security audits, train employees on cybersecurity best practices, and establish incident response protocols.

Patching and Updates

Stay informed about security advisories from Tobesoft Co., Ltd, and promptly apply patches or updates to address known vulnerabilities and enhance system security.