Session monitoring has XSS vulnerability

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.3.6
• Fix Version/s: 4.3.7, 4.4.0
• Component/s: None
• Labels: None
• Similar Issues: Show 5 results ; ;

  LEP-4737	Forgot password XSS vulnerability
  LEP-5901	Close XSS vulnerabilities found by LEP-5801
  LEP-7410	Live Session Monitoring does not display correct info
  LEP-4739	Admin portlet Shutdown message has XSS and CSRF vulnerability
  LEP-5801	Add xss vulnerability detection to format-source task

DESCRIPTION:
Liferay doesn't properly sanitize name of user agent in Enterprise Admin -> Monitoring -> Live Sessions ->

{Session}

which allow to craft XSS attack targeted directly to Portal Administrator.
This vulnerability which conjunction with CSRF can lead to serious problems.

ATTACK IMPACT:
See other XSS and CSRF reports

ATTACK CONSTRAINTS:
User with access to any account on Liferay based portal
NOTE: Attack must set to User-Agent HTTP header before session is created (so User-Agent must present itself with attack from the beginning of User-Agent <-> Server interaction) !!!

EXAMPLE EXPLOIT AND VERIFICATION:
Please use software proxy that allows to modify HTTP traffic or write simple user-agent in f.e. Perl.
Set value of HTTP User-Agent to f.e (Internet Explorer + an attack).
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)<<script>script>alert('XSS !!!')<</script>/script>