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         (PT-2009-14) Positive Technologies Security Advisory

               BLOG:CMS Cross-Site Scripting vulnerability

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---[ Affected Software ]

        BLOG CMS
        Versions 4.x prior to 4.2.0

        Product Link:
                http://www.blogcms.com


---[ Severity Rating ]

                Severity: Medium
                Impact: Cross-Site Scripting
                Attack Vector: Remote

        CVSS v2:
                Base Score: 4.3
                Temporal Score: 3.4
                Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N/E:P/RL:O/RC:C)

        CVE:    not assigned


---[ Software Description ]

BLOG CMS is a content management system (CMS) software, usually implemented 
as a Web application, for creating and managing HTML content. It is used to 
manage and control a large, dynamic collection of Web material (HTML 
documents and their associated images).


---[ Vulnerability Description ]

Positive Technologies Research Team has discovered a Cross-Site Scripting 
(XSS) vulnerability in BLOG CMS.

User input passed to certain parameter is not properly sanitized. This can 
be exploited to inject malicious code and allows to execute arbitrary HTML 
and script code in a user's browser session in context of an affected site. 
Vulnerability details are not disclosed.

Malicious users may inject JavaScript, VBScript, ActiveX, HTML or Flash into 
a vulnerable application to fool users in order to gather data from their 
machines. An attacker can steal the session cookie and take over the account 
impersonating the user. It is also possible to modify page content presented 
to the user.


--[ Solution ]

Update to latest version.
http://downloads.sourceforge.net/blogcms/blogcms.4.2.1.c.7z


--[ Disclosure Timeline ]

03/03/2009 - Vendor is notified
03/03/2009 - Vendor response
03/03/2009 - Requested status update from vendor
03/03/2009 - Vendor has informed that vulnerability is already corrected in 
the new version
03/13/2009 - Public disclosure


---[ Credits ]

This vulnerability was discovered by Dmitry Evteev (Positive Technologies 
Research Team) using professional network security scanner MaxPatrol.


---[ References ]

http://en.securitylab.ru/lab/PT-2009-14
http://www.ptsecurity.ru/advisory.asp

Complete list of vulnerability reports published by Positive Technologies 
Research Team:

http://en.securitylab.ru/lab/
http://www.ptsecurity.ru/advisory.asp


---[ 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; the development of 
the Securitylab en.securitylab.ru 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, CIS countries, Baltic States, 
China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, 
Mexico, South African Republic, Thailand, Turkey and 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.