Two XSS Vulnerabilities in SupportCenter Plus

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

Advisory ID: HTB23247
Product: SupportCenter Plus
Vendor: Zoho Corp.
Vulnerable Version(s): 7.9 and probably prior
Tested Version: 7.9
Advisory Publication:  January 7, 2015  [without technical details]
Vendor Notification: January 7, 2015 
Vendor Patch: January 23, 2015 
Public Disclosure: January 28, 2015 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2015-0866
Risk Level: Medium 
CVSSv2 Base Score: 4.3 (AV:N/AC:M/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 two XSS vulnerabilities in a 
web-based customer support software SupportCenter Plus. These vulnerabilities 
can be exploited to perform Cross-Site Scripting attacks against authenticated 
users of the vulnerable software.


1) Cross-Site Scripting (XSS) in SupportCenter Plus: CVE-2015-0866

The discovered XSS vulnerabilities can be used by attackers to steal cookies or 
other sensitive user data of a vulnerable website. 

Attackers can also perform more sophisticated attacks, such as spear phishing, 
or launch drive-by-download attacks against website users by injecting malware 
or exploit-packs into vulnerable scripts.

1.1 Input passed via the "fromCustomer" HTTP GET parameter to "/HomePage.do" 
script is not properly sanitised before being returned to the user. A remote 
attacker can trick a logged-in user to open a specially crafted link and 
execute arbitrary HTML and script code in browser in context of the vulnerable 
website.

A simple exploit below uses the "alert()" JavaScript function to display 
"ImmuniWeb" word: 

http://[host]/HomePage.do?fromCustomer=customerportal_%3C/script%3E%3Cscript%3Ealert%28/ImmuniWeb/%29%3C/script%3E

1.2 Input passed via the "username" and "password" HTTP POST parameters to 
"/HomePage.do" script are not properly sanitised before being returned to the 
user. A remote attacker can trick a logged-in user to open a specially crafted 
link and execute arbitrary HTML and script code in browser in context of the 
vulnerable website.

Below is a simple exploit that can be used to demonstrate the vulnerability. 
After submitting the form two JavaScript dialog boxes will appear with 
"ImmuniWeb" word:


<form action="http://[host]/HomePage.do"; method="post" name="main">
<input type="hidden" name="username" 
value='</script><script>alert(/ImmuniWeb/)</script>'>
<input type="hidden" name="password" 
value='</script><script>alert(/ImmuniWeb/)</script>'>
<input type="submit" id="btn">
</form>


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Solution:

Update to SupportCenter Plus build 7941

More Information:
https://forums.manageengine.com/topic/security-update-for-supportcenter-plus

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References:

[1] High-Tech Bridge Advisory HTB23247 - 
https://www.htbridge.com/advisory/HTB23247 - Two XSS Vulnerabilities in 
SupportCenter Plus.
[2] SupportCenter Plus - http://www.manageengine.com/products/support-center/ - 
SupportCenter Plus is a web-based customer support software that lets 
organizations effectively manage customer tickets, their account &amp; contact 
information, the service contracts and in the process providing a superior 
customer experience.
[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® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual 
web application penetration test and cutting-edge vulnerability scanner 
available online via a Software-as-a-Service (SaaS) model.

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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.