ocPortal CMS 8.x Session Hijacking

`1. OVERVIEW  
  
ocPoral CMS 8.x and lower versions are vulnerable to Session Hijacking  
flaw which could allow attackers to compromise administrator session.  
  
  
2. PRODUCT DESCRIPTION  
  
ocPortal is the website Content Management System (a CMS) for building  
and maintaining a dynamic website. ocPortal's powerful feature-set  
means there's always a way to accomplish your vision. Not only does  
ocPortal's CMS have all the features you'd expect: for instance photo  
galleries, news, file downloads and community forums/chats, but it  
does so whilst meeting the highest accessibility and professional  
standards. It is also smart enough to go beyond page management, to  
automatically handle search engine optimisation, and provide  
aggressive hack attack prevention.  
  
  
3. VULNERABILITY DESCRIPTION  
  
The ocPoral CMS generates 7-digit session IDs for logged-in users;  
thus it is possible to work out a valid session ID through brute  
forcing. Successful hijacking requires the "Enforce IP addresses for  
sessions" option be disabled. However, when a user's IP is highly  
dynamic, this option will likely to be disabled as it would invalidate  
logged-in sessions. In other way, if a user and an attacker happened  
to be within the same subnet, the attack would succeed regardless of  
the "Enforce IP" setting turning on.  
  
  
4. VERSIONS AFFECTED  
  
Tested on version 8.1.2  
  
  
5. PROOF-OF-CONCEPT/EXPLOIT  
  
sample session cookie: ocp_session=8711789  
  
  
6. SOLUTION  
  
No fix is available as of 2012-08-19.  
Workaround is to set enabled for the option, "Enforce IP addresses for  
sessions".  
  
  
7. VENDOR  
  
ocPortal Development Team  
http://www.ocportal.com/  
  
  
8. CREDIT  
  
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN  
Ethical Hacker Group, Myanmar.  
  
  
9. DISCLOSURE TIME-LINE  
  
2012-07-29: notified vendor, vendor did not plan to release fix  
because of default deployed workaround  
2012-08-19: vulnerability disclosed  
  
  
10. REFERENCES  
  
Original Advisory URL:  
http://yehg.net/lab/pr0js/advisories/2wire/%5Bocportal_8x%5D_session_hijacking_vulnerability  
  
  
#yehg [2012-08-19]  
`