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Two XSS Vulnerabilities in SupportCenter Plus

Advisory ID:HTB23247
Product:SupportCenter Plus
Vendor:Zoho Corp.
Vulnerable Versions:7.9 and probably prior
Tested Version:7.9
Advisory Publication:January 7, 2015 [without technical details]
Vendor Notification:January 7, 2015
Vendor Fix:January 23, 2015
Public Disclosure:January 28, 2015
Latest Update:January 27, 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
 

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


References:
[1] High-Tech Bridge Advisory HTB23247 - https://www.immuniweb.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 & 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® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.
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