This tweet highlights two methods for bypassing web application firewalls (WAFs) commonly used to protect web applications. First is Parameter Pollution, where adding extra junk parameters (like 'bypass=true') to a URL can confuse the WAF and trick it into allowing malicious traffic. For example, sending a URL such as /verify?otp=123456&bypass=true can evade simple WAF rules. The second method is Distributed Requests, which involves sending requests across multiple subdomains to avoid detection by spreading out the attack traffic. This can make it harder for the WAF to correlate and block the malicious activities. These techniques are not specific to any one WAF vendor and can be a challenge for many WAFs, highlighting the importance of sophisticated filtering and rule sets.
For more details, check out the original tweet here: https://twitter.com/_0b1d1/status/1950132798335123649