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Re: [TLS] SSL cert - CA issuer question - WIndows Event Reporting CA

Bas Westerbaan <bas@cloudflare.com> Wed, 07 June 2023 14:48 UTC

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From: Bas Westerbaan <bas@cloudflare.com>
Date: Wed, 07 Jun 2023 16:48:28 +0200
Message-ID: <CAMjbhoWvvb8dbs7sXcwgso+VEbxHX0zaWSg=KiT3q0gDEPhXqg@mail.gmail.com>
To: M K Saravanan <mksarav@gmail.com>
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Subject: Re: [TLS] SSL cert - CA issuer question - WIndows Event Reporting CA
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The second certificate is ours. The first is not. Thus on the first
connection, a third party is in the middle (MitM). They must've added a
root certificate to your browser's trust store.

 Bas


PS. That it only happens on the first visit might be because that is over
HTTP/2 whereas subsequent visits are over QUIC, which the interception
software/hardware might not support.

On Wed, Jun 7, 2023 at 3:52 PM M K Saravanan <mksarav@gmail.com> wrote:

> Hi,
>
>
> Off late I noticed a behaviour with many https websites.
>
>
>
> When I first access that website, for e.g. https://www.cloudflare.com
> the issuer CA is shown as “Windows Event Reporting CA”.  When I access the
> same site subsequently, it is showing proper CA as “ Cloudflare Inc ECC CA
> -3”.
>
>
> [image: image.png]
>
>
> [image: image.png]
>
>
>
>
>
>
>
> What is this Windows Event Reporting CA? Why does it show this as CA when
> accessing for the first time?
>
>
>
> With regards,
>
> Saravanan
>
>
> _______________________________________________
> TLS mailing list
> TLS@ietf.org
> https://www.ietf.org/mailman/listinfo/tls
>

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