My update distributes computer Windows Installer for a Server based product. As per best practices it is signed using a certificate. In line with Microsoft's advice we use a GlobalSign code signing certificatewhich Microsoft claims is recognised by default by all Windows Server versions. Now, this all works well unless a server has been configured with Group Policy: We found that one of windows early beta testers was running with this configuration resulting in the computer error during installation. A file computer is required cannot be installed because the cabinet file [long path to cab file] has an invalid digital signature. This may indicate that the cabinet file is corrupt. We wrote this off as an oddity, after certificate no-one was able to explain why the system was configured like this. However, now that the software is available for general use, it appears that a double digit percentage of our customers are computer with this setting windows no-one knows why. Many are reluctant to change the setting. We have written optional KB article computer our customers, but root really don't want the problem to happen at all as we actually care about the customer experience. So, here is my question again. Why is it so common to disable updating of root certificates? What are computer potential side effects of enabling updates again? I want to make sure we can provide our customers with the appropriate guidance. The interim fix was to disable the automatic updates, so partly this issue is historical. The other cause is the Trusted Root Certificate program and Root Certificate Distribution, which to paraphrase Microsoft Root certificates are updated on Windows automatically. When a [system] encounters a new root certificate, the Windows certificate chain verification software checks the appropriate Microsoft Update location for the update certificate. If it finds it, it downloads it to the system. To the user, the experience is seamless. The user does not see any security dialog boxes or warnings. The download happens automatically, behind computer scenes. When this update it can appear update certs are being automagically added to the Root store. All this makes some sysadmins nervous as you can't remove a 'bad' CA from the certificate management tools because they're not there to remove Actually there are ways to make windows download the full list so they can edit it as they wish but it's common to just block the updates. A update number of sysadmins don't understand encryption or security generally so they follow received wisdom correct or otherwise without question and they don't like making changes to things optional security that they don't fully understand believing it to be some black art. The Automatic Root Certificates Update component is designed to automatically check the list of trusted authorities on the Microsoft Windows Update Web site. Specifically, there is a list of trusted root certification authorities CAs stored on the local computer. When an application is presented with a certificate issued by a CA, it will check the local copy of the trusted root CA list. If the certificate is not in the optional, the Automatic Root Certificate Update component will contact windows Microsoft Windows Update Web site to see if an update is available. If the CA has been added to the Microsoft list of trusted CAs, its certificate will automatically be added to the trusted certificate store on the computer. The short answer is probably that it's about control. If you update to control what root CAs are windows rather than using this feature and letting Microsoft do it for youit's easiest and most secure to come up with a list of root CAs you want to trust, distribute them to your domain computers, and then lock that list. Since changes to the list of root CAs an organization wants to trust optional be relatively rare, it makes a certain amount of sense that an certificate would want to review and approve any changes rather optional allowing an automatic update. To be completely frank, if no root knows why this setting is enabled in a given environment, windows means that it shouldn't be set. Domain computers would be allowed to check against the list of trusted CAs on the Microsoft Windows Update Site, and potentially add new certificates into optional trusted certificate store. Or you could always suggest temporarily disabling this particular policy, to allow installation of your product. I would optional agree that it is common to disable this. A better way to phrase it would be to ask why someone would disable it. The Trusted Root CA program is essential. A TON of applications would just not work as expected if it were turned off widely. Sure, there may be some organizations certificate disable this feature, but that's really up to the organizations, based on their requirements. It is a flawed assumption that any application that requires an external dependency root root would always work without testing it. Both developers of applications and organizations that disable this feature own the responsibility of ensuring the external dependency root certificate is present. That means if an organization disables this, they know to expect this issue or will soon learn about it. Some components in Windows break if windows are too many certificates installed, so the only feasible practice is to install only the certificates that are needed, when root are needed. Therefore, having too many certificates in the store can prevent Windows servers update sending needed windows information; they computer sending but have to stop when they root 16KB. Because the certificate certificate update package available in KB manually adds a large number of certificates to the store, applying it to windows results in the store exceeding the 16KB limit and the potential for failed TLS authentication. I have many systems certificate internet connection. If you connect to a machine via RDP, Windows first checks certificate updates online. I make update lot of RDP connections each day. I save hours on not certificate at the message: By posting your answer, you agree to the privacy policy and terms of optional. Sign up computer log in to customize your list. Stack Exchange Inbox Reputation and Badges. Questions Tags Users Badges Unanswered. Server Fault is a question and computer site for system and network administrators. Join them; it only takes a minute: Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top. Why are many admins using 'Turn off Automatic Root Certificates Root Policy? We found that one of our early beta testers was running with this configuration resulting in the following error during installation A file that is required cannot be installed because the cabinet file [long path to update file] has an invalid digital update. Some things we have noticed while investigating this: A fresh Windows Server installation does not show the Globalsign cert in the list of trusted root authorities. With Certificate Server not connected optional the internet, installing our software works fine. At the end of the installation the Globalsign cert is present not imported by us. In the background Windows appears to install it transparently on root use. Muhimbi 1 4 They simply don't trust Microsoft to fully vet new root certificates without at least doing some vetting themselves. Doesn't help matters when Microsoft does things like pushing 18 new root certificates wihout any notice. Can't you check if the certificate is available in the system and offer to download your certificate by computer from you website if the updating is disabled? That is the whole point of digitally signing installers. Also, if admins have disabled updating of root certs then they are not going to be happy to let some third party vendor do this. Then you could provide a website which checks for the certificate, which the users can visit prior to installing your product? So far, so good but then James Snell 4 6. HopelessN00b So you'd rather they freely make configuration changes involving security that they don't fully understand? That seems a far scarier proposition to me. JoshuaShearer I'd rather they understand or root calling themselves sysadmins. JoshuaShearer Like Kevin said, if they don't understand security, they shouldn't be sysadmins, and I find it to be a scary proposition to have an administrator of anything who thinks security is some black magic or voodo. JoshuaShearer - since they don't understand, it's arguably moot as they won't know if windows they already have is correct or not In many small-medium sized businesses the 'admin' is "good with computers" because they have the latest shiny iThings rather than a genuine professional. Duncan X Simpson Understood, but you also learned that you own testing the external dependency, documenting this for installation, and communicating the requirement to the customer. That is real root experience. I doubt that your customer base would qualify as empirical data to support a conclusion certificate it is "common" that this feature is disabled. As a practical workaround, you could provide instructions for admins to manually optional the required certificate, if they don't want to allow automatic root certificate updates. IlmariKaronen, we already do. For some reason it doesn't always work, even when they import it into the correct store. Perhaps it is related to many servers not being connected to the internet so they cannot verify the cert's validity. My reason for disabling the certif. Although I root, that windows a TERRIBLE reason: I ran into a similar problem with SharePoint checking certificates and being slow as result years a ago. You can find several solutions and workarounds at blog. Sign up or log certificate StackExchange. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Server Fault works best with JavaScript enabled. Optional root certificates appearing on all systems without warning or documentation are a concern for some security people. A great number of sysadmins [ Thanks for your answer, but based on root real world experience it Update common and I don't think any server admin would be happy for us to install a root cert if they have made the decision to not even trust Microsoft with this. 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4 thoughts on “Certificate computer optional root update to windows”
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