The tweet mentions a bypass technique using historical IP addresses to bypass WAF protection. This bypass method leverages historical subdomains on IPs, allowing attackers to use historical IP addresses as origin IPs to evade WAF restrictions. Additionally, attackers can abuse vhosts on these historical IP addresses. This technique highlights the importance of monitoring and securing historical IP addresses to prevent WAF bypasses. Consider implementing additional security measures to protect against such bypass techniques.
For more insights, check out the original tweet here: https://twitter.com/mcipekci/status/1922410201027617234