[Positive Technologies SA:2009-14] BLOG CMS Cross-Site Scripting vulnerability

---

     (PT-2009-14) Positive Technologies Security Advisory

           BLOG:CMS Cross-Site Scripting vulnerability

---

—[ 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.