macforge.org via https?

Kevin Van Vechten kvv at apple.com
Wed Jan 2 12:45:53 PST 2008


On Jan 2, 2008, at 12:37 PM, Landon Fuller wrote:

>>> 	- Digest authentication is indistinguishable from Basic  
>>> authentication -- your browser will display the same dialog  
>>> regardless of the authentication type.
>>
>> Safari distinguishes them; Basic authentication dialogs say the  
>> password will be sent in the clear.
>
> Currently, trying to access http://www.macosforge.org/wp-login.php  
> in Safari says the following:
> 	"Your password will be sent in the clear."

Oh right, ironically Safari has a bug in that message is displayed  
even for digest authentication (it is not intended to be).

> Firefox doesn't show any difference in the auth dialog -- I'd easily  
> login using the basic auth. Also, does Safari refuse to auto-login  
> if the authentication type changes?

Unknown.  The RFC suggests that it should.  =)

>>> At best, it will prevent a passive attacker from acquiring your  
>>> password. Anyone engaging in an active MITM attack will have no  
>>> difficultly acquiring your password.
>>
>> I agree SSL provides additional security benefits, but digest  
>> authentication isn't as transparent as you indicate.
>
> I still hold that it is -- digest auth makes passive sniffing  
> useless, but it doesn't prevent an active attack from acquiring your  
> password, especially if you're using a browser that fails to  
> differentiate between digest and basic auth.

We're probably talking past each other, and I'm probably splitting  
hairs.  I disagree that the MITM can "acquire your password" but I  
agree that a MITM could "masquerade as you."

- Kevin


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