[MajorSecurity #17] SixCMS <= 6 - Multiple XSS and directory traversal vulnerabilities

2006-06-15T00:00:00
ID SECURITYVULNS:DOC:13178
Type securityvulns
Reporter Securityvulns
Modified 2006-06-15T00:00:00

Description

[MajorSecurity #17] SixCMS <= 6 - Multiple XSS and directory traversal vulnerabilities

Software: SixCMS

Version: <=6

Type: Cross site scripting

Date: June, 12th 2006

Vendor: Six Offene Systeme GmbH

Page: http://www.sixcms.de

Credits:

Discovered by: David "Aesthetico" Vieira-Kurz http://www.majorsecurity.de

Original Advisory:

http://www.majorsecurity.de/advisory/major_rls17.txt

Affected Products:

SixCMS 6 and prior

Description:

SixCMS is a well known and commercial enterprise Content Management System.

Requirements:

register_globals = On

Vulnerability:

Input passed to the "template" parameter in "detail.php" is not properly verified, before it is used to execute the given arguments.

Acquiring access to known files outside of the web root and current directory is possible through directory traversal techniques. This is made possible through the use of "../../" in a HTTP request.

Input passes to the "page" parameter in "list.php" is not properly sanitised, before it is used to execute the given arguments. This can be exploited to execute arbitrary HTML and script code in context of an affected site.

Solution:

Edit the source code to ensure that input is properly sanitised. You should work with "htmlspecialchars()" or "strip_tags()" php-function to ensure that html tags are not going to be executed.

Example: <?php echo htmlspecialchars("<script"); ?>

Set "register_globals" to "Off".

Examples:

/detail.php?template=../../../../../../etc/passwd%00 /list.php?page=<script>alert("MajorSecurity")</script>