Author: DarkKnight

My site: http://www.insecureonline.com

Product: Poster.version:two

Side Note: This is my first post ever on bugtraq, so bear with me.

Vendors: Contacted

A vulnerability exists within Poster.version:two that allows a remote

attacker to add accounts to a Poster.version:two. The vulnerability

exists within Poster's setup. The setup doesn't lock itself after it is

ran, so the setup is still active and usable. A sample is listed below

http://www.website.com/poster/?

go=setup_submit&un=DarkKnight&pw=123456&em=EMAIL&submit=submit

The above link would add the user "DarkKnight" with the password "123456"

and the email "EMAIL" to the list of users for the Poster script. The

user has complete admin access to Poster and will be able to delete

accounts, modify news, post news, change the formation of the news, and

steal the password of the users who use Poster, which may be the password

to their email or website.

The two people who deserve credit for this vulnerability are: Fusen and

DarkKnight [me :)]

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