HTTPS scanning Web Protection SSL error ERR_CERT_COMMON_NAME_INVALID

HI KarstenStolten, 

The new version of Chrome V58 will no longer accept certificates that do not have a subject alternate name.  Chrome is following RFC 2818 for this change.  Chrome V58 has now gone GA .

This could affect the Sophos Web appliance and Sophos UTM, which both use https scanning. The site generated certificate that we give back in these cases does not have a subject alternate name, meaning Chrome will reject the certificate and block the site

There are 3 options you may opt for. 

Option 1: Disable HTTPS scanning untill the issue is fixed. 

Option 2: Use another Web Browser . 

Option 3 *preferred: setting this GPO to ENABLED https://www.chromium.org/administrators/policy-list-3#EnableCommonNameFallbackForLocalAnchors 

Our Dev team are working on this issue should be resolved soon . 

Hello, I'm just wondering if there is any news on when we might see an update to resolve this issue?

As this is now starting to affect our organisation as well. We managed to stop the updates before our PCs were affected but a number of our Macs have already updated to Chrome 58 and can not get on Google websites and services.

Unfortunately Macs cannot use GPOs, so we have had to advise users to switch to Safari for the time being, but it would be better if Sophos could fix the issue with HTTPS certificate generation on their UTM system.

Thanks,

Dan Jackson (Lead ITServices Technician)

Long Road Sixth Form College

Cambridge, UK.

Hi All,

We have resolved this issue with our latest update 

UTM 9.413004

ftp://ftp.astaro.de/UTM/v9/up2date/u2d-sys-9.412002-413004.tgz.gpg

MD5: 753ff750ef6785f3f7fa2c97ed9da42c

File size: ~4MB

HI,

I've applied this and it has NOT fixed the issue unfortunately - exactly the same issue with HSTS enabled sites and Chrome 58 as before.

Disabling SSL inspection is not really a viable option, nor is rolling out a GPO.

Dan

Surely Sophos have had an idea that this was going to cause a problem?  Google have had this planned for months from what I can see, so how does a company as big as Sophos not patch their products in good time, to resolve any issue?  We shouldn't have to resort to changing group policy settings to implement a workaround.

Surely Sophos have had an idea that this was going to cause a problem?  Google have had this planned for months from what I can see, so how does a company as big as Sophos not patch their products in good time, to resolve any issue?  We shouldn't have to resort to changing group policy settings to implement a workaround.

colly72 said:

Surely Sophos have had an idea that this was going to cause a problem?  Google have had this planned for months from what I can see, so how does a company as big as Sophos not patch their products in good time, to resolve any issue?  We shouldn't have to resort to changing group policy settings to implement a workaround.

 

To be fair, you can find evidence of this hitting any major filtering provider you care to think of. Its not just Sophos being lazy ;)

Maybe it's a criticism of the industry as a whole then.  Still doesn't cover Sophos in much glory.