Web Application Firewall on Azure blocks valid requests

Web Application Firewall on Azure blocks valid requests (today)

Our Web Application Firewall (WAF) was initially set to block traffic from non-EU countries. However, we encountered a problem today where it ...

Troubleshoot - Azure Web Application Firewall - Microsoft Learn

It's a ledger of all evaluated requests that are matched or blocked. If you notice that the WAF blocks a request that it shouldn't (a false ...

Web Application Firewall exclusion lists - Microsoft Learn

Sometimes WAF might block a request that you want to allow for your application. WAF exclusion lists allow you to omit certain request ...

Request blocked on azure waf when form fields have values as json ...

1 Answer 1 · URLEncode the data in your · Add a custom rule to disable WAF for the URL you're POST ing to · Globally disable some of the ...

Policy settings for Web Application Firewall in Azure Front Door

WAF response for blocked requests ... By default, when the WAF blocks a request because of a matched rule, it returns a 403 status code with the ...

Azure Web Application Firewall (WAF) v2 custom rules on ...

Your custom rules can either block, allow, or log requested traffic based on matching criteria. If the WAF policy is set to detection mode, and ...

Azure Web Application Firewall - Microsoft Learn

There's a threshold of 5 for the Anomaly Score to block traffic. So, a single Critical rule match is enough for the Application Gateway WAF to ...

How to define IP whitelist in Azure Application Gateway (WAF) or ...

You can create a Custom rule on Azure Application Gateway WAF v2 to block all requests from an IP address/range. You can use the "RemoteAddr" ...

Azure AppGW with WAF: A Comprehensive Guide | by Amir Mustafa

Azure Application Gateway (AppGW) with Web Application Firewall (WAF) is a powerful solution to protect web applications from common web exploits.

Best practices for Azure Web Application Firewall in Azure Front Door

The rules in your WAF should be tuned for your workload. If you don't tune your WAF, it might accidentally block requests that should be allowed ...

frontDoorWebApplicationFirewall...

Details · Inspect Azure Front Door WAF logs for wrongfully blocked legitimate requests · Check Azure Application Gateway WAF logs for mistakenly blocked valid ...

Azure Application Gateway WAF config vs WAF policy

Before being able to enable and benefit from WAF capabilities, you will need to check the SKU of the Application Gateway you have. WAF can only ...

Azure WAF does not play nicely with Web Apps - Andy Burns' Blog

Recently I've been working on a Sitecore site that is using Azure App Gateway, and it is using the Web Application Firewall (WAF) features ...

Web Application Firewall request and file upload size limits

For Application Gateway v2 Web Application Firewalls running Core Rule Set 3.2, or newer, the maximum request body size enforcement and max file ...

Tune Azure Web Application Firewall for Azure Front Door

If you try the request, the WAF blocks traffic that contains your 1=1 string in any parameter or field. This string is often associated with a ...

Configure Web Application Firewall(WAF) with Azure ... - Medium

Configure Web Application Firewall(WAF) with Azure Application Gateway · If you select No in Enable autoscaling, then enter the Scale units · Keep ...

Azure Web Application Firewall (WAF): introduction - PeppeDotNet.it

Azure Application Gateway components, used by WAF · Backend pools - The web applications that must be protected. · HTTP settings - Here you can ...

Bypassing custom rules using the RequestHeaders match variable ...

I had a case the other day where a custom rule in a Web Application Firewall v2 policy attached to an Application Gateway behaved kind of ...

Publishing from ArcGIS Pro triggers Azure WAF mandatory rule.

We have a base ArcGIS Enterprise deployment behind an Azure Application Gateway with WAF enabled using the OWASP 3.1 ruleset.

Azure Web Application Firewall - Microsoft Q&A

The Azure Front Door Web Application Firewall is blocking a number of valid requests due to false positives caused by cookie names. We have the Default ...