CVE-2021-45428 : Security Advisory and Response

TLR-2005KSH is affected by an incorrect access control vulnerability allowing attackers to upload arbitrary files.

Understanding CVE-2021-45428

TLR-2005KSH has a vulnerability that enables attackers to upload arbitrary files, including HTML and CGI formats, due to an incorrect access control issue.

What is CVE-2021-45428?

TLR-2005KSH is impacted by an incorrect access control vulnerability, specifically related to the PUT method, which can be exploited by attackers to upload malicious files.

The Impact of CVE-2021-45428

This vulnerability can lead to unauthorized file uploads, potentially allowing attackers to upload malicious content, leading to further exploitation or unauthorized access.

Technical Details of CVE-2021-45428

TLR-2005KSH vulnerability details and affected systems.

Vulnerability Description

An incorrect access control vulnerability in TLR-2005KSH allows attackers to upload arbitrary files, including HTML and CGI formats, due to the enabled PUT method.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit the vulnerability by utilizing the PUT method to upload arbitrary files, potentially including harmful HTML and CGI formats.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2021-45428.

Immediate Steps to Take

Disable the PUT method if not required for functionality.
Regularly monitor and analyze file uploads for suspicious activity.
Implement proper access controls to restrict unauthorized file uploads.

Long-Term Security Practices

Conduct regular security assessments and audits of file upload functionalities.
Ensure proper input validation and sanitization of uploaded files.
Educate users on secure file upload practices to prevent malicious uploads.

Patching and Updates

Stay informed about security patches and updates for TLR-2005KSH to address this vulnerability.