Kayako Fusion 4.40.1148 Cross Site Scripting

2012.09.06
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

Advisory ID: HTB23095 Product: Kayako Fusion Vendor: Kayako Vulnerable Version(s): 4.40.1148 and probably prior Tested Version: 4.40.1148 Vendor Notification: June 6, 2012 Public Disclosure: September 5, 2012 Vulnerability Type: Cross-Site Scripting [CWE-79] CVE Reference: CVE-2012-3233 CVSSv2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N) Solution Status: Fixed by Vendor Risk Level: Medium Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) ----------------------------------------------------------------------------------------------- Advisory Details: High-Tech Bridge SA Security Research Lab has discovered vulnerability in Kayako Fusion, which can be exploited to perform Cross-Site Scripting (XSS) attacks. 1) Cross-Site Scripting (XSS) in Kayako Fusion: CVE-2012-3233 Input appended to the URL after /__swift/thirdparty/PHPExcel/PHPExcel/Shared/JAMA/docs/download.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in user's browser session in context of an affected website. The following PoC (Proof of Concept) demonstrates the vulnerability: http://[host]/__swift/thirdparty/PHPExcel/PHPExcel/Shared/JAMA/docs/download.php/%27%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E Successful exploitation of this vulnerability requires that Apache's directive "AcceptPathInfo" is set to "on" or "default" (default value is "default"). ----------------------------------------------------------------------------------------------- Solution: Upgrade to Kayako Fusion 4.50.1581 More Information: http://wiki.kayako.com/display/DOCS/4.50.1581 ----------------------------------------------------------------------------------------------- References: [1] High-Tech Bridge Advisory HTB23095 - https://www.htbridge.com/advisory/HTB23095 - Cross-Site Scripting (XSS) in Kayako Fusion. [2] Kayako Fusion - http://www.kayako.com - Kayako Fusion is the world's leading multi-channel helpdesk solution that enables organizations to deliver a better customer experience and work more effectively as a team, whatever their size. [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. ----------------------------------------------------------------------------------------------- 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.

References:

http://wiki.kayako.com/display/DOCS/4.50.1581
https://www.htbridge.com/advisory/HTB23095


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