This tweet warns about a significant security vulnerability in Azure's Front Door Web Application Firewall (WAF). The issue involves bypassing IP restrictions even when protective rules are configured. Essentially, this means that the expected security measures to control and limit access based on IP addresses may fail, potentially exposing web applications to unauthorized access. This kind of vulnerability undermines trust in the effectiveness of Azure's WAF protections, specifically in scenarios relying on IP-based access control. Users and administrators should be cautious and seek updates or patches from Microsoft to address this vulnerability. Until fixed, relying solely on Azure Front Door WAF for IP restriction security might be risky.
Check out the original tweet here: https://twitter.com/xcybersecnews/status/1943329218936324157