Q: iOS 7 breaks windows authentication.

I just did the upgrade to iOS 7.0.2.  Unfortunately, the update did NOT resolve this issue.

I also updated and it did resolve the issue. I can now login to a SharePoint site.

This update didn't address any issue on regards to Safari.

http://support.apple.com/kb/HT5957

Therefore, this new patch will not solve our issue with Windows Authentication. Btw our Sharepoint site was working before the update.

Also confirming that iOS 7.0.2 didn't address the Safari Windows Authentication issue.

I sent an email to Apple's bug report about this issue in case they don't monitor this forum.

Hopefully, someone at Apple is aware of the problem.

Same problem here on iPad updated to IOS7.

Windows Authentication in SSL doesn't work in an enterprise application.

Sometimes i can login, but after few seconds it's request username and password again.

I hope that Apple will fix this problem asap.

Sweet, great to know there's a reasonable workaround (private browsing). Of course, if you've got a site that relies heavily on cookies, this might be impractical. Should be good enough for our needs for the time being, though.

Also, the bug report ID that I filed is 14985097. I don't know if there's any value to including that with additional bug reports on the problem, but it might help get this noticed.

I have an open ticket with apple business enterprise. We will se how this goes. They've apparentluy escalated the issue tot he engineers.

Yes, big problem indeed. Having users required to use Private Mode does work but people have to remember to switch it on. I'm glad to hear this issue got escalated because it not only is a problem for our application but must be a major problem for anybody who uses Windows authentication, and I'll bet that's a lot of people.

Same problem here, seems that my WebView and NSURLConnection sendSynchronousRequest:returningResponse:error do not want to use NSURLCredentialStorage....till iOS 7 all works fine.

Does anyone know of a document where Apple acknowledges this issue or indicates if a fix is in the works?

I was able to reproduce this problem on iPhone 4 with iOS 7.0.2 and IIS on W2008R2 too. The problem is in Windows Authentication IIS settings. If Kerberos is present between enabled providers (for Windows Authentication) Safari fails to load web page. If Kerberos is disabled, only NTLM provider exists so Safari is forced to use NTLM authentication and web page loads successfully.

Safari on iOS6 worked fine even if Kerberos was enabled.

I have already sent this as a feedback to Apple.

Excellent investigation by rdol!

I tested out his fix by disabling Kerberos on one of our IIS 7.5 servers and it worked. Authentication was very quick. There is a nicely detailed discussion on exactly how to disable Kerberos on IIS 7.x at Stack Overflow:

http://stackoverflow.com/questions/16222946/remove-negotiate-from-windowsauthent ication-in-iis

This is an acceptable workaround for us since none of our installations use Kerberos Authentication. But it's a completely unnecessary step to have to go through. Apple has to get this fixed quick.

Interesting - hopefully Apple will fix their issue with Kerberos in iOS 7 - we can't disable it because we are trying to access Sharepoint sites and it is configured to use Kerberos.