bugtraq - [PT-2011-01] Cross-Site Scripting in Kayako Support Suite

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Message-Id: <201201111043.q0BAhEvE021397@sf01web1.securityfocus.com>
Date: Wed, 11 Jan 2012 10:43:14 GMT
From: noreply@...ecurity.ru
To: bugtraq@...urityfocus.com
Subject: [PT-2011-01] Cross-Site Scripting in Kayako Support Suite

------------------------------------------------------------------
(PT-2011-01) Positive Technologies Security Advisory 
Cross-Site Scripting in Kayako Support Suite
------------------------------------------------------------------

---[ Vulnerable software ]

Kayako Support Suite 
Version: 3.70.02-stable and earlier

Application link: 
http://www.kayako.com/

---[ Severity level ]

Severity level:	 Medium 
Impact:	 Cross-Site Scripting 
Access Vector:	 Network exploitable 
CVSS v2: 
Base Score: 4.3 
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVE: not assigned

---[ Software description ]

Kayako Support Suite is a HelpDesk system.

---[ Vulnerability description ]

Positive Research Center has discovered XSS in Kayako Support Suite.

Application insufficiently verifies incoming data in "Subject" parameter in LiveSupport module. 
An attacker can use the vulnerability to inject and execute HTML code and scripts in a user's browser within the trust relationship between the browser and the server. 
An attack can be successful if administrator deletes a message created by user via Delete button of Options section of the message.

Application insufficiently verifies incoming data in "Full Name" and "Subject" parameters in Tickets module. 
An attacker can use the vulnerability to inject and execute HTML code and scripts in a user's browser within the trust relationship between the browser and the server. 
An attack can be successful if administrator views task information via popup menu.

Application insufficiently verifies incoming data in "Full Name" parameter in Kayako Support Suite (Tickets, News, Knowledgebase) modules. 
An attacker can use the vulnerability to inject and execute HTML code and scripts in a user's browser within the trust relationship between the browser and the server. 
A user can be successfully attacked via Tickets module if the user opens a page with opened tasks and if an attacker creates a task with special characters on behalf of the user. 
Other modules can execute arbitrary HTML code in a user's browser while viewing comments to any articles if an attacker manages to modify "Full Name" value for the current user.

---[ How to fix ]

Update your software up to the v4 

---[ Advisory status ]

25.11.2011 - Vendor is notified 
25.11.2011 - Vendor gets vulnerability details 
25.08.2011 - Vendor releases fixed version and details 
29.12.2011 - Public disclosure

---[ Credits ]

The vulnerability was discovered by Yuri Goltsev, Positive Research Center (Positive Technologies Company)

---[ References ]

http://en.securitylab.ru/lab/PT-2011-01

Reports on the vulnerabilities previously discovered by Positive Research:

http://www.ptsecurity.com/advisory1.aspx 
http://en.securitylab.ru/lab/

---[ About Positive Technologies ]

Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.

The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; development of the Securitylab leading Russian information security portal.

Among the clients of Positive Technologies, there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, the CIS countries, the Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, the Republic of South Africa, Thailand, Turkey, and the USA.

Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.