phpbb2023-hijack.txt

`+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
phpBB 2.0.23 Session Hijacking Vulnerability +  
found by NBBN 13 Mar 2008 +  
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++   
  
  
  
::Information about this vulnerabilty  
If a moderator or an admin close a thread in phpBB 2.0.X, the sessionid   
is sending with GET:  
  
http://site.tld/phpBB2/modcp.php?t=1&mode=lock&sid=[session]  
  
The admin/moderator are going to be redirected to the thread(with the   
session). If an attacker has posted an image in his post, he can see the   
referer and so the session id. And if the attacker have a good day and   
the admin close the thread, he can use all admin-functions with csrf.  
  
  
::Fix  
  
No fix  
  
::Workaround  
  
Upgrade to phpBB3  
  
::Tested under:  
  
phpBB 2.0.23 (localhost)  
`