bugtraq - Re: Windows doesn't verify digital signature of CRL files

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Date: Tue, 10 Aug 2004 07:32:40 +0000
From: Thomas Walpuski <thomas-bugtraq@...roved.org>
To: Faro Poplar <faropoplar@...oo.com>
Cc: bugtraq@...urityfocus.com
Subject: Re: Windows doesn't verify digital signature of CRL files

* Faro Poplar wrote:
> Has anyone  noticed that Windows doesn't verify the digital signature
> of CRL files  (*.crl).

Yes, I noticed that about 2 years ago. IMO this is no security issue.
CRLs are retrieved from the certificate store via CertGetCRLFromStore.
Sane use of CertGetCRLFromStore makes sure only properly signed CRLs are
used (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/
seccrypto/security/certverifycrlrevocation.asp).

Thomas Walpuski