PT-2009-20: A.CMS Multiple Vulnerabilities

Affected Software

A.CMS
Versions prior to 1.23


Product Link:
http://a-cms.ru

Severity Rating

Severity: Medium
Impact: Cross-Site Scripting, installation path disclosure
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

A.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 the following vulnerabilities in A.CMS:

A) Cross-Site Scripting

B) Installation path disclosure

A) Cross-Site Scripting

Application does not properly verify input data passed to certain parameter. 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.

B) Installation path disclosure

Application does not properly verify input data for some scripts. This allows to call an exception that leads to web server root directory disclosure. Vulnerability details are not disclosed.

An attacker may use the data to exploit another attacks.

Solution

Update to latest version.

Disclosure Timeline

03/02/2009 - Vendor is notified
03/04/2009 - Vendor response
03/04/2009 - Vendor releases fixed version
03/10/2009 - Requested status update from vendor
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-2009-20
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

Threatscape