IT Consultant Everyday Notes

Just some problems/solutions storage

PKI: Chrome 58 gives a warning with HTTPS connection to a Web Server

Scenario: Web Server protected by a certificate issued by Internal Certification Authority (Microsoft ADCS).

Certificate has a single Subject Name on it Internet Explorer works fine, only Chrome is affected

 

Warning:

This Server could not prove that it is <server name>; its security certificate is from [missing_subjectAltName]. This may be caused by a misconfiguration or an attacker intercepting your connection.

Resolution: I reissued the certificate and added Subject Alternative Name (SAN) with the same FQDN to it. After that I assigned the new certificate to the Web Server interface and restarted IIS. Chrome connects to the web server without any warnings now.

 

More about SAN: https://technet.microsoft.com/en-us/library/ff625722(v=ws.10).aspx

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: