CVE-2021-36622 : Vulnerability Insights and Analysis
Learn about CVE-2021-36622, a critical vulnerability in Sourcecodester Online Covid Vaccination Scheduler System 1.0 that allows arbitrary file upload and potential remote code execution. Find out impact, mitigation steps, and more.
This article provides detailed information about CVE-2021-36622, a vulnerability in Sourcecodester Online Covid Vaccination Scheduler System 1.0 that allows arbitrary file upload, potentially leading to remote code execution.
Understanding CVE-2021-36622
This section will cover the essence of CVE-2021-36622 and its implications.
What is CVE-2021-36622?
CVE-2021-36622 is a security vulnerability found in Sourcecodester Online Covid Vaccination Scheduler System 1.0 that enables attackers to upload arbitrary files, like malicious PHP files, via the admin panel's profile photo upload function.
The Impact of CVE-2021-36622
The vulnerability can be exploited by malicious actors to upload and execute arbitrary code on the system, potentially leading to complete compromise of the affected system.
Technical Details of CVE-2021-36622
In this section, we will delve into the technical aspects of the CVE-2021-36622 vulnerability.
Vulnerability Description
The flaw allows attackers to upload files with dangerous content like shell.php through the profile photo upload feature, leading to unauthorized access.
Affected Systems and Versions
Sourcecodester Online Covid Vaccination Scheduler System 1.0 is confirmed to be impacted by this vulnerability, though the versions are not explicitly provided.
Exploitation Mechanism
Attackers can abuse the upload function to plant malicious files in the system and subsequently access the uploaded file to execute arbitrary commands.
Mitigation and Prevention
This section outlines the necessary measures to mitigate the risks associated with CVE-2021-36622.
Immediate Steps to Take
Users are advised to restrict file upload capabilities, validate file types, and sanitize file uploads to prevent arbitrary file execution.
Long-Term Security Practices
Regular security audits, code reviews, and user input validation are essential for maintaining a secure software environment.
Patching and Updates
Ensure that the software is up to date with the latest security patches and fixes to address known vulnerabilities.