Question

OWA Restricting Access

Asked by: cjwinks

Hi,
We've set up Exchange 2000 and OWA is running nicely. The problem is that users can access anyones e-mail by simply changing the mail box name in the address bar.

How do I restrict access so that users can access only there own mailbox?

Cheers
CJ Windsor

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Asked On
2002-03-22 at 01:59:37ID20280277
Tags

access

,

owa

,

restrict

Topic

SendMail Email Server

Participating Experts
3
Points
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Comments
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Answers

 

by: samriPosted on 2002-03-24 at 04:46:19ID: 6892077

Im' not quite familiar with OWA.  Perhaps there should be some kind of security option where each users must be authenticated before the can open a mailbox.  Check the OWA (I hope OWA is some kind of web based email system), documentation on how to enable such authentication.

just a thought.

 

by: markt9Posted on 2002-03-25 at 21:14:50ID: 6895622

 

by: cjwinksPosted on 2002-03-26 at 05:59:13ID: 6896352


Ta for the advice.
However,
I've set the Exchange directory security to basic level authentication. This prompts for a log on, but once a user is logged on he/she can still access anyones mail box by just changing the URL.

For example...
  -log on to "servername/Exchange", Enter name & password
  -This gets them into there own inbox
  -They can however just change the URL to "servername/Exchange/userx" (where userx is name another user). This lets em read userx's mail.

How can I restrict this sort of access?



 

by: cjwinksPosted on 2002-03-26 at 06:00:30ID: 6896355


Ta for the advice.
However,
I've set the Exchange directory security to basic level authentication. This prompts for a log on, but once a user is logged on he/she can still access anyones mail box by just changing the URL.

For example...
  -log on to "servername/Exchange", Enter name & password
  -This gets them into there own inbox
  -They can however just change the URL to "servername/Exchange/userx" (where userx is name another user). This lets em read userx's mail.

How can I restrict this sort of access?



 

by: markt9Posted on 2002-03-26 at 17:04:55ID: 6898058

hehe....tell you users not to change the url to someone elses name....hehe.  Being the open source fan of Sendmail and linux in general, it is kind of humerous to hear how to defeat a OWL server.....but i'm sure it was your higherups that decided on exchange server....

Are you running OWA on a seperate machine from the exchange server?  Maybe you need to check both machines for permissions.

If you added a new user on just one machine does that automaticly give you access to the other?  Don't add that user to any groups to start your test and find the minimum permissions to get just the mail.

Did you modify the OWA program?  Did you mess up the global.asa in the process.

Did you pay for support from Microsoft when you went with Exchange?

 

by: SunBowPosted on 2002-04-17 at 16:02:03ID: 6949233

Secure it up while you are at it

a) Upgrade each and every MS component
b) run https (not http) to url
c) install root CA certificate to browser

noting -
> -They can however just change the URL to "servername/Exchange/userx"

If I am logged in to it, using my ID in place of userx yields the 404: "The page cannot be found"

user browse mode should be disabled

 

by: SunBowPosted on 2002-04-17 at 16:10:10ID: 6949238

(revision, error should be HTTP/1.1 401 Unauthorized where userx is internet EM ID, not Exchange/MS ID)

20120131-EE-VQP-002

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