CVE-2021-45835 : What You Need to Know

The Online Admission System 1.0 contains a vulnerability that allows an unauthenticated attacker to upload malicious files, potentially leading to code execution.

Understanding CVE-2021-45835

What is CVE-2021-45835?

The CVE-2021-45835 vulnerability in the Online Admission System 1.0 permits unauthorized users to upload dangerous file types, creating a risk of executing malicious code or achieving code execution.

The Impact of CVE-2021-45835

This vulnerability poses a severe security risk as attackers could exploit it to upload harmful files and compromise the system, potentially leading to unauthorized code execution.

Technical Details of CVE-2021-45835

Vulnerability Description

The flaw in the Online Admission System 1.0 enables unauthenticated attackers to upload or transfer dangerous files via documents.php, paving the way for executing malicious code.

Affected Systems and Versions

Affected Systems: Online Admission System 1.0
Affected Version: Not specified

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading files of dangerous types through the application, specifically via documents.php, to execute malicious code or achieve code execution.

Mitigation and Prevention

Immediate Steps to Take

Disable File Uploads: Consider disabling file uploads if they are not necessary for the application functionality.
Implement Input Validation: Apply strict input validation to ensure that only safe file types are allowed to be uploaded.

Long-Term Security Practices

Regular Security Audits: Conduct regular security audits to identify and address vulnerabilities promptly.
User Authentication: Implement robust user authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply Security Patches: Stay updated with security patches for the Online Admission System to address this vulnerability and other potential security issues.