288 questions with Azure Web Application Firewall tags

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Randomly POST calls are being blocked for few seconds

One weird thing is happening, Randomly POST calls via Ajax are being blocked for few seconds. We have two App services, one for web and one api, all Get calls are working but POST calls sop working. And within 1-2 seconds starts working. Sometime start…

Azure API Management
Azure API Management
An Azure service that provides a hybrid, multi-cloud management platform for APIs.
1,805 questions
Azure
Azure
A cloud computing platform and infrastructure for building, deploying and managing applications and services through a worldwide network of Microsoft-managed datacenters.
1,008 questions
Azure Web Application Firewall
Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
7,032 questions
asked 2024-05-24T14:06:31.93+00:00
Animesh Anand 0 Reputation points
1 answer

How do I configure the Azure Application Gateway / backend pool to drop requests that are blocked by the WAF as the log file indicate the request was blocked but the script ends up in the database.

requests blocked by the WAF are being forwarded to the backend API servers. How do you configure the backend pool or WAF to drop requests that are blocked by the WAF.

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-05-16T08:21:12.23+00:00
Derek Green 0 Reputation points
commented 2024-05-24T10:08:43.76+00:00
Derek Green 0 Reputation points
0 answers

http2 compatibility

We have 2 environments were WAF is configured. In the DEV environment, its working on http2 In the UAT environment, its not working on http2. When the WAF configuration is change, it works on http1.1. I have provided some detains below (you will see…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
Azure Kubernetes Service (AKS)
Azure Kubernetes Service (AKS)
An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.
1,893 questions
asked 2024-05-21T16:42:57.35+00:00
Fobuzie, Marleo 0 Reputation points
commented 2024-05-22T05:20:22.98+00:00
KapilAnanth-MSFT 36,861 Reputation points Microsoft Employee
1 answer

Configuring exclusions on Applicaiton Gateway WAF

Hello, At present we are using an Application Gateway WAFv2 (in monitor mode) for web applications hosted on the backend VMs. We want to move the WAF to prevent mode, but based on the logs collected we think many legitimate requests will be blocked,…

Azure Web Application Firewall
asked 2022-03-07T18:21:46.043+00:00
Ashish Gupta 1 Reputation point
commented 2024-05-20T17:22:02.3733333+00:00
Morgan Ecklund 0 Reputation points
1 answer One of the answers was accepted by the question author.

WAF (v2) Managed Exclusion Rule difficulty with a particular request.

Hi experts.. I have a particularly troublesome request being blocked and am seemingly unable create a suitable managed exclusion rule, although it appears that it should be possible. We have an asp.net (web forms) application that uses SSRS ReportViewer…

Azure Web Application Firewall
asked 2024-05-14T09:15:50.92+00:00
Richard 20 Reputation points
accepted 2024-05-17T23:50:35.1766667+00:00
Richard 20 Reputation points
1 answer

I want to block certain regions of a country on application gateway and not entire country how can I do that

I want to block certain regions in country based on iso code and azure only gives me option to do it for entire country. How can I implement it for a region in country

Azure Web Application Firewall
asked 2024-05-14T20:00:33.4566667+00:00
Kajal Kothari 0 Reputation points
edited an answer 2024-05-17T11:07:24.1833333+00:00
GitaraniSharma-MSFT 48,016 Reputation points Microsoft Employee
1 answer One of the answers was accepted by the question author.

How to add correct exclusion on Azure WAF?

Greetings. Please help in creating an exception to the rule: OWASP_3.2 - Possible Remote File Inclusion (RFI) Attack: Off-Domain Reference/Link. My web application generates requests like: …

Azure Web Application Firewall
asked 2024-05-13T11:59:44.36+00:00
Yurii Tsarienko 20 Reputation points
edited the question 2024-05-14T13:53:35.8033333+00:00
KapilAnanth-MSFT 36,861 Reputation points Microsoft Employee
0 answers

I would like to check if there is a possibility to block based on device ID in WAF

we need to block the requests in waf based on the client device ID . How can we achieve it. And also is there any way to know the device ID of the user from waf logs

Azure Web Application Firewall
asked 2024-05-12T19:28:38.02+00:00
Madhavi Sri 0 Reputation points
commented 2024-05-13T09:48:05.06+00:00
KapilAnanth-MSFT 36,861 Reputation points Microsoft Employee
1 answer One of the answers was accepted by the question author.

Upgrade your legacy WAF configuration to WAF policies

I have received "high impact" Advisor recommendations from azure to "Upgrade your legacy WAF configuration to WAF policies". I have tried to follow as per suggested in the following…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-05-06T01:51:09.09+00:00
jazzspeed 20 Reputation points
accepted 2024-05-13T03:54:03.75+00:00
jazzspeed 20 Reputation points
1 answer One of the answers was accepted by the question author.

Publish an application with NTLM authentication

Hello, Azure has an authentication application that is configured to use the NTLM AD provider. This is a virtual machine with IIS and users logged into the domain transparently open the site without authentication. We would like to protect applications…

Azure Front Door
Azure Front Door
An Azure service that provides a cloud content delivery network with threat protection.
595 questions
Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-05-10T18:04:38.6366667+00:00
Mountain Pond 1,346 Reputation points
edited a comment 2024-05-12T21:44:25.38+00:00
Sina Salam 4,216 Reputation points
0 answers

Application Gateway WAF v2 only allow specfic IP Traffic

Hi Team, I have setup a custom rule in WAF previously to only allow few IP to access AGW. However the same rule doesn't works today. Current outcome by setting different combination like either Blocking or Allowing ALL traffic, instead of specific…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-05-09T14:14:58.09+00:00
William Tang 0 Reputation points
commented 2024-05-10T03:00:16.28+00:00
ChaitanyaNaykodi-MSFT 23,426 Reputation points Microsoft Employee
2 answers One of the answers was accepted by the question author.

we cannot see the request in the firewall logs from application gateway

When we send the request from postman API request is getting success also seen in database(ssms), application gateway but we cannot see the request in the firewall logs what is the issues and how to solve this error we are using this below query in…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
7,032 questions
Azure Startups
Azure Startups
Azure: A cloud computing platform and infrastructure for building, deploying and managing applications and services through a worldwide network of Microsoft-managed datacenters.Startups: Companies that are in their initial stages of business and typically developing a business model and seeking financing.
30 questions
asked 2023-11-03T12:25:26.3333333+00:00
Mayank Jain 260 Reputation points
edited the question 2024-05-07T15:52:43.4566667+00:00
bharathn-msft 5,086 Reputation points Microsoft Employee
1 answer One of the answers was accepted by the question author.

Exclude waf rule 944130(Suspicious Java classes)

Hi I have a web application which has WAF owasp3.2 enabled and its blocking a specific url (/polarion/gwt/com.polarion.UI/PortalDataService) Detailed Data: {java.lang.string found within…

Azure Web Application Firewall
asked 2024-04-30T05:34:57.15+00:00
Jagadish Karem 26 Reputation points
accepted 2024-04-30T08:30:16.36+00:00
Jagadish Karem 26 Reputation points
1 answer One of the answers was accepted by the question author.

About the difference web application firewall policy custom rule

Hello. Thanks for your interest in my topic. I need clarification on the difference between the web application firewall policy in azure frontdoor and the web application firewall policy in application gateway. In the waf policy for application…

Azure Web Application Firewall
asked 2024-04-22T08:42:29.3433333+00:00
romero 105 Reputation points
commented 2024-04-22T10:28:22.72+00:00
KapilAnanth-MSFT 36,861 Reputation points Microsoft Employee
1 answer One of the answers was accepted by the question author.

Questions about the version of the CRS in Azure WAF

Hi, thanks for your interest in the topic. I have a question about the CRS version of Azure WAF. Is the latest 3.2 version of CRS in azure waf created based on the 3.2 version of OWASP? The current version of OWASP is 4.1. Compared to that, the Azure…

Azure Web Application Firewall
asked 2024-04-17T09:20:29.2833333+00:00
romero 105 Reputation points
commented 2024-04-18T10:23:54.53+00:00
GitaraniSharma-MSFT 48,016 Reputation points Microsoft Employee
2 answers One of the answers was accepted by the question author.

Confusion between WAF with Application Gateway and FrontDoor when securing custom Web Apps running on Azure VM published to the internet ?

Could you please let me know which Azure technology can be used to minimize the attack surface for safely publishing a Virtual Machine as a Web App on the internet? WAF with Application Gateway:…

Azure Front Door
Azure Front Door
An Azure service that provides a cloud content delivery network with threat protection.
595 questions
Azure Virtual Network
Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
2,201 questions
Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Content Delivery Network
Azure Web Application Firewall
asked 2024-04-12T12:12:14.38+00:00
EnterpriseArchitect 4,871 Reputation points
commented 2024-04-17T13:31:35.5466667+00:00
KapilAnanth-MSFT 36,861 Reputation points Microsoft Employee
7 answers

When to use Azure WAF or Azure Firewall ?

Hi Folks, Can anyone here please share some thoughts and comments of when to use Azure WAF or Azure Firewall? I have already existing Azure ExpressRoute so my Azure VMs can ping my OnPremise servers, and vice versa. My purpose here is to be able to…

Azure Firewall
Azure Firewall
An Azure network security service that is used to protect Azure Virtual Network resources.
580 questions
Azure Web Application Firewall
Azure Firewall Manager
Azure Firewall Manager
An Azure service that provides central network security policy and route management for globally distributed, software-defined perimeters.
85 questions
asked 2020-11-15T13:17:27.597+00:00
EnterpriseArchitect 4,871 Reputation points
answered 2024-04-16T12:18:12.6+00:00
carlintveld 26 Reputation points
1 answer One of the answers was accepted by the question author.

WAF azure websocket problem

Hey everyone, I have trouble with app-gw and WAF. The problem is that we implement a websocket and in the app-gw log comes this one: error_info_s: ERRORINFO_UPSTREAM_TIMED_OUT WAFMode_s: Prevention Have another app-gw without WAF and the same config,…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-04-05T11:43:25.07+00:00
Nasimjon Tohirov 231 Reputation points
accepted 2024-04-12T09:35:54.9466667+00:00
Nasimjon Tohirov 231 Reputation points
1 answer One of the answers was accepted by the question author.

Azure WAF exclusion does not work for Request Cookie Keys

Hi, I have created exclusion in WAF policy for Application Gateway. This exclusion works when I set "matchVariable = Request Cookie Keys" and does not work if I set "matchVariable = Request Cookie Names". I understood that Names and…

Azure Web Application Firewall
asked 2024-04-11T08:51:29.7066667+00:00
Konstantin Kostin 20 Reputation points
accepted 2024-04-12T05:06:05.2633333+00:00
Konstantin Kostin 20 Reputation points
1 answer One of the answers was accepted by the question author.

How to show trace info on custom error pages when WAF blocks a request and returns a 403?

If a user does something that triggers a 403 because the WAF blocked the request, I would like to show some extra information in the custom error page that I have already set in the Application Gateway, so it will be easy to identify in the Log Analytics…

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
973 questions
Azure Web Application Firewall
asked 2024-03-20T15:38:05.0133333+00:00
del Risco Martínez, Jorge 20 Reputation points
accepted 2024-04-09T07:48:07.0466667+00:00
del Risco Martínez, Jorge 20 Reputation points