Application Gateway WAFv2 Custom Rules disappeared.
Hello All, We have a AGW with WAFv2 running. A while back we were working on adding new custom rules, but after saving the new rule, all of our existing WAF custom rules were deleted. Checking with Azure support, we came to know that the delete operation also works as a PUT operation for updating and/or deleting details. But we couldn't get a clear picture on what caused our rules to be deleted instead of adding the new rule. We are still in the process of exploring options to understand what could have caused this anomaly. Have any of you faced any such scenario(s)? Any insights or suggestions are welcome and much appreciated.Application Gateway WAF custom rule is not triggered if the HTTP header field is not present
Hi Community, I have this strange behavior on my Application Gateway WAF. I created this custom rule (see image below) to deny traffic when the http request has Referer http header field empty or missing. The problem is that this rule is only triggered when the Referer http header field is empty but not when it is missing 😞 Instead, the same custom rule is working fine on the front door WAF. Why is it happening? Did I do something wrong?
