e621ng URL Redirection via Rails url_for in PaginatorComponent

Executive Summary

This vulnerability affects e621ng versions before 26.09.16. It involves untrusted request parameters being passed directly to Rails url_for in PaginatorComponent and controller navigation links. Attackers can manipulate host, protocol, and port parameters to redirect pagination and navigation links to malicious domains while the page loads from the legitimate site.

Useful 0 Not Useful 0

Detection Guidance

To detect this vulnerability, inspect network traffic for unusual pagination or navigation link redirections. Check server logs for requests containing host, protocol, or port query parameters in URLs. Use tools like curl to test if the application accepts and processes these parameters in URL generation.

Useful 0 Not Useful 0

Impact Analysis

Attackers could trick users into clicking links that appear legitimate but redirect to malicious sites. This could lead to phishing attacks, credential theft, or malware downloads. Users might unknowingly interact with attacker-controlled domains while believing they are on the trusted site.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling phishing attacks or unauthorized data exposure through malicious URL redirection. Attackers could manipulate pagination and navigation links to redirect users to attacker-controlled domains, potentially leading to data breaches or unauthorized access to sensitive information.

Useful 0 Not Useful 0

Mitigation Strategies

Update e621ng to version 26.09.16 or later to address the vulnerability in PaginatorComponent and navigation links.

Useful 0 Not Useful 0