CVE-2021-45255 : What You Need to Know

Video Sharing Website 1.0 is affected by a SQL injection vulnerability in the email parameter of ajax.php. Attackers can execute malicious SQL queries, including interacting with external domains.

Understanding CVE-2021-45255

What is CVE-2021-45255?

The vulnerability in Video Sharing Website 1.0's ajax.php allows SQL injection attacks, enabling the execution of unauthorized SQL queries that interact with external domains.

The Impact of CVE-2021-45255

The SQL injection vulnerability poses a severe security risk, allowing attackers to manipulate data, interact with external domains, and potentially extract sensitive information.

Technical Details of CVE-2021-45255

Vulnerability Description

The flaw in the email parameter of ajax.php permits the injection of SQL sub-queries, including the use of MySQL's load_file function with UNC file paths referencing external URLs.

Affected Systems and Versions

Product: Video Sharing Website 1.0
Vendor: Not specified
Version: Not specified

Exploitation Mechanism

Attackers inject a payload containing a SQL sub-query calling MySQL's load_file function with a UNC file path referencing an external URL.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation to sanitize user input and prevent SQL injection attacks.
Regularly monitor and analyze SQL queries for any suspicious activity.

Long-Term Security Practices

Conduct security audits and penetration testing to identify and address vulnerabilities.
Educate developers on secure coding practices to prevent future SQL injection issues.

Patching and Updates

Apply vendor-supplied patches promptly to fix the SQL injection vulnerability.