IE is completely DoS'd by a page full of HTTP Basic Auth images.

[I ran into this with the Mail app, where the problem is made even worse, but it looks like it's an IE issue at heart.]

Repro: (you'll have to kill IE after this, so save important tabs first). https://dl.dropboxusercontent.com/u/6867891/misc/ie-basic-auth-dos.html

Result: You are inundated with an "endless" (50 in this case) supply of modal dialogs asking you for credentials.  Regardless of whether you enter the correct credentials (netsession/password) or hit enter, the modal dialogs just keep on coming.

Suggested fix:  Chrome and Firefox only prompt me once.  If I enter credentials or hit cancel, they use that for all subsequent requests to that HTTP Basic Auth realm.

In addition, it would be nice if the dialog wasn't modal, so it can't block the whole app.

Background: Every day I receive a stats email that includes around 100 tiny sparkline-style graphs.  These graph images are served off of our stats server, which authenticates users via HTTP Basic Authentication (meaning that in order to get the image, the client has to send a username/password in the HTTP headers).  When I view this email (in IE or the Windows Mail app), it brings up a modal dialog to prompt me for the username and password for every single image in the email (all 100).  There's no way to cancel or abort.

In the Mail app this is made even worse because it apparently tries to pre-load emails in the background, so I get stuck in this "endless" modal dialog cycle without even clicking on the email in question.  So my entire Mail app is currently unusable.

Hi Michael,


 

I would suggest you to reset Internet Explorer 11 Preview and check if it helps.

 

a)     Close all Internet Explorer and Explorer windows that are currently open.

b)     Reopen Internet Explorer for the desktop. Changing your settings will affect both Internet Explorer and Internet Explorer for the desktop.

c)     Tap or click the Tools button, and then tap or click Internet options.

d)     Tap or Click the Advanced tab, and then tap or click Reset.

e)     In the Reset Internet Explorer Settings dialog box, tap or click Reset.

f)      When Internet Explorer finishes applying default settings, tap or click Close, and then tap or click OK. You'll need to restart your PC for these changes to take effect.

 

Note: Please note that running Reset Internet Explorer Settings will reset all user-defined settings including those set by installed extensions, toolbars and other add-ons to IE Defaults. This includes all Security, Privacy and Zone settings. Also this will clear browsing history, delete all temporary Internet Files, cookies, form data and especially all stored passwords.

 

If the issue persists, I would suggest you to post the query in TechNet forum for further assistance.

http://social.technet.microsoft.com/Forums/windows/en-US/home?forum=w8itpronetworking#forum=w81previtpro&filter=alltypes&sort=lastpostdesc&content=Search

 

Hope this information helps. If you need any further assistance or information on this issue, reply back to this post. I will be glad to help you.

 

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That did not help.  I have re-posted on the TechNet forum.

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Last updated May 1, 2018 Views 45 Applies to:

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