Welcome to the DNN Community Forums, your preferred source of online community support for all things related to DNN.
In order to participate you must be a registered DNNizen

HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Hacking TargetHacking Target
Previous
 
Next
New Post
2/3/2016 3:23 PM
 
Hello All,

I was wondering if any of you had seen this in your installation. I found some domains in my PortalAlias table that I did not put there. I am looking through my logs and I am finding a GET to Default.aspx at the time of the INSERT and the HTTP response is 302, but I do not see any content there that indicates that an INSERT was done or SQL passed to the site. In any case, i am a little baffled because Users must be approved after registration and I do not see administrative logins that would allow them to write to PortalAlias from the DNN UI. I was thinking of making PortalAlias ReadOnly until I can figure out where these entries came from. Has anyone experienced this out in the wild? i am using 7.4.0 with the InstallWizard.aspx renamed
thanks,
~aw
 
New Post
2/4/2016 2:45 AM
 

There is a setting called "Auto Add Site Alias" (Under Portal Settings :: Advanced Settings :: Site Aliases). Please check if this is on or off, and turn it off when its on. Does this still happen?

On the other hand: How do your standard aliases look like, and how do the aliases look that have been added?

Happy DNNing!
Michael


Michael Tobisch
DNN★MVP
dnn-Connect.org - The most vibrant community around the DNN-platform
 
New Post
2/4/2016 11:10 AM
 
I actually have a constraint on the table right now, but I did have that setting checked. It is unchecked now. What is the purpose of this setting? How could it be invoked without user authentication? AS far as the aliases added there were alot, some were raw IPs and others were specific domains...known ones like yahoo for example. It made me wonder if the DNN web application responded with a useful header in the 302 that allowed for anonymizing the source IP on their way to one of these URLs.

Thanks for pointing me at that setting, though I really wonder what its utility is that makes it a default out of the box.

~aw
 
New Post
2/8/2016 3:24 AM
 

Here is a Wiki entry about the Portal Alias: http://www.dnnsoftware.com/wiki/porta...

Maybe this is also interesting for you: https://www.youtube.com/watch?v=VMNyB...

Basically: The Auto Add Portal Alias function adds any new, valid site alias requested to the site aliases - this is not depending on the fact if a user is anonymous or not, or if he is a normal user, an administrator or a superuser. This happens in the background. Any domain name bound to the underlying IIS website can be used to request the website when this setting is on.

You should also check the host header settings in your IIS and set only the appropriate host headers.

Happy DNNing!
Michael


Michael Tobisch
DNN★MVP
dnn-Connect.org - The most vibrant community around the DNN-platform
 
New Post
2/11/2016 1:00 PM
 
I am still baffled as to how this could happen without such host headers being sent. All of these domains and IP addresses are completely unknown to my IIS installation. Again this seems to be a way to get a response from the DNN web application that can be leveraged in some way that I am not sure about. Also, it means there is some way to create Portal Aliases "remotely" that I have yet to identify. Unnerving...
 
Previous
 
Next
HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Hacking TargetHacking Target


These Forums are dedicated to discussion of DNN Platform and Evoq Solutions.

For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines:

  1. No Advertising. This includes promotion of commercial and non-commercial products or services which are not directly related to DNN.
  2. No vendor trolling / poaching. If someone posts about a vendor issue, allow the vendor or other customers to respond. Any post that looks like trolling / poaching will be removed.
  3. Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.
  4. No Flaming or Trolling.
  5. No Profanity, Racism, or Prejudice.
  6. Site Moderators have the final word on approving / removing a thread or post or comment.
  7. English language posting only, please.

Content Layout

Subscribe to DNN Digest

DNN Digest is our monthly email newsletter. It highlights news and content from around the DNN ecosystem, such as new modules and themes, messages from leadership, blog posts and notable tweets. Keep your finger on the pulse of the ecosystem by subscribing.  


Copyright 2017 by DNN Corp Terms of Use Privacy
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out