Cross-site Scripting (XSS) Vulnerabilities in eazyCMS

Advisory ID:HTB22553
Product:eazyCMS
Vendor:eazyCMS Team
Vulnerable Versions:Current on 28.07.2010 and probably prior
Tested Version:Current on 28.07.2010
Advisory Publication:July 28, 2010 [without technical details]
Vendor Notification:July 28, 2010
Public Disclosure:August 11, 2010
Vulnerability Type:Cross-Site Scripting [CWE-79]
Risk Level:Low
CVSSv2 Base Score:2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in eazyCMS which could be exploited to perform cross-site scripting attacks.

1) Cross-site scripting (XSS) vulnerabilities in eazyCMS
1.1 The vulnerability exists due to input sanitation error in the "page_id" parameter in eazycms.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://admin.host/eazycms.php?action=&page_id=2%22%3E%3Cscript%3Ealert%28doc ument.cookie%29%3C/scrip t%3E
1.2 The vulnerability exists due to input sanitation error in the "filter_keywords" parameter in formedit.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://admin.host/formedit.php?action=list&filter_keywords=%22%3E%3Cscript%3 Ealert%28document.cookie %29%3C/script%3E
1.3 The vulnerability exists due to input sanitation error in the "title" parameter in eazycms_header.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://host/eazycms_header.php?title=%3Cscript%3Ealert%28document.cookie%29% 3C/script%3E
1.4 The vulnerability exists due to input sanitation error in the "username" parameter in indexcms.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://admin.host/indexcms.php?error_code=-1&username=1%22%3E%3Cimg+src=x+on error=alert%28document.c ookie%29%3E

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Solution:
Upgrade to the most recent version


References:
[1] High-Tech Bridge Advisory HTB22553 - https://www.immuniweb.com/advisory/HTB22553 - Cross-site Scripting (XSS) Vulnerabilities in eazyCMS
[2] eazyCMS - eazycms.com - eazyCMS is a powerful content management system, developed and maintained by Eazyweb Internet Services since 2000.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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