Multiple Vulnerabilities in X2CRM

[High-Tech Bridge Security Research <advisory@xxxxxxxxxxxx>]

Advisory ID: HTB23172
Product: X2CRM
Vendor: X2Engine Inc. 
Vulnerable Version(s): 3.4.1 and probably prior
Tested Version: 3.4.1
Advisory Published: September 4, 2013 
Vendor Notification: September 4, 2013 
Vendor Patch: September 10, 2013 
Public Disclosure: September 25, 2013 
Vulnerability Type: PHP File Inclusion [CWE-98], Cross-Site Scripting [CWE-79]
CVE References: CVE-2013-5692, CVE-2013-5693
Risk Level: High 
CVSSv2 Base Scores: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C), 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 vulnerabilities in 
X2CRM, which can be exploited to include arbitrary local files and execute 
arbitrary PHP code, as well as to perform Cross-Site Sripting (XSS) attacks 
against users of vulnerable application. 


1) PHP File Inclusion in X2CRM: CVE-2013-5692

The vulnerability exists due to insufficient filtration of the "file" HTTP GET 
parameter passed to "/index.php/admin/translationManager" URL before using it 
in PHP "include()" function. A remote authenticated administrator can include 
and execute arbitrary local PHP files on the target system using directory 
traversal sequences.

The following exploitation example displays content of "/etc/passwd" file:

http://[host]/index.php/admin/translationManager?file=../../../../../etc/passwd

Successful exploitation of this vulnerability requires administrative 
privileges, however it can be also exploited via CSRF vector to which the 
application is prone.

Simple CSRF exploit below includes and executes "/tmp/file.php" script:

<img 
src="http://[host]/index.php/admin/translationManager?file=../../../../../tmp/file.php";>


2) Cross-Site Scripting (XSS) in X2CRM: CVE-2013-5693

The vulnerability exists due to insufficient sanitisation of user-supplied data 
in "model" HTTP GET parameter passed to "/index.php/admin/editor" URL. 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]/index.php/admin/editor?model=%3C/script%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

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Solution:

Update to X2CRM 3.5

More Information:
http://x2community.com/index.php?/topic/1005-x2crm-35-released/

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References:

[1] High-Tech Bridge Advisory HTB23172 - 
https://www.htbridge.com/advisory/HTB23172 - Multiple vulnerabilities in X2CRM.
[2] X2CRM - http://www.x2engine.com - X2CRM is an open source based Sales, 
Marketing Automation and Service application designed exclusively for companies 
that require a tightly focused customer information system.
[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.
[5] ImmuniWeb® - http://www.htbridge.com/immuniweb/ - is High-Tech Bridge's 
proprietary web application security assessment solution with SaaS delivery 
model that combines manual and automated vulnerability testing.

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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.