UMI.CMS Cross-Site Scripting vulnerability

Affected Software

UMI.CMS
Versions 2.x prior to 2.7.1 (build 10856)

Product Link:
http://www.umi-cms.ru


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

UMI.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 UMI.CMS.

User input passed to the "fields_filter" setting 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.

Example:
http://[server]/market/[content_dir]/?fields_filter[price][0]=%22%3E%3Cscript%3Ealert('XSS')%3C/script%3E&fields_filter[price][1]=1

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 version 2.7.1 (build 10856).

Disclosure Timeline

04/03/2009 - Vendor is notified
04/03/2009 - Vendor response
04/03/2009 - Requested status update from vendor
06/03/2009 - Vendor releases fixed version and details
06/03/2009 - Public disclosure


Credits

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

References

http://en.securitylab.ru/lab/PT-2009-12
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