Microsoft Security Advisory for ADCS exploit – ADV210003

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This morning we provided details to our existing support and co-management customers on a recent notice of vulnerability to certain Microsoft ADCS configurations. The exploit involves NTLM and leveraging some ADCS PKI components. Full details can be found here: https://msrc.microsoft.com/update-guide/en-US/vulnerability/ADV210003. Summary In environments with NTLM authentication still enabled in Active Directory and when using ADCS…

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Submitting Netscape SPKI (SPKAC) Cert Requests to ADCS

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Recently I was contacted on Twitter with a question about Microsoft’s support of Signed Public Key and Challenge (Netscape SPKI) for certificate enrollment requests. I have long taught in my classes that there are a number of formats supported by ADCS for certificate requests. So I consulted one of the tables I talk about in…

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