"File Upload Limit" that can be set by WAF

haji-2517 21 Reputation points
2022-04-13T06:30:56.31+00:00

Hello.

I'm collecting information about setting up WAF for Application Gateway v2.
I have three questions about the file upload limit in the WAF settings.

1.
What is the file upload limit? What does this file upload refer to?
For example, is it the maximum amount of files that can be uploaded from the file upload button defined by the HTML < input type = "file" > tag?

2.
What error will I get if I exceed this limit?

3.
What happens if I omit this setting (leave it blank)?
Will I be able to upload files without limit?

Thank you.

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
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Azure Web Application Firewall
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Accepted answer
  1. Somnath Kumar 76 Reputation points
    2022-04-15T06:39:35.53+00:00

    Hello

    1.
    What is the file upload limit? What does this file upload refer to?
    For example, is it the maximum amount of files that can be uploaded from the file upload button defined by the HTML < input type = "file" > tag?

    No WAF enabled: 4GB on V2 SKU and 2GB on V1 SKU.
    WAF enabled with OWASP version < 3.2: V1 SKU 100 MB and V2 SKU - 750 MB
    WAF enabled with OWASP version >= 3.2 (preview) : V2 SKU 4GB

    2.
    What error will I get if I exceed this limit?

    403 Forbidden

    3.
    What happens if I omit this setting (leave it blank)?
    Will I be able to upload files without limit?

    Default file upload size applied based on SKU and WAF enabled or not.

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