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Multiple Vulnerabilities in HTML-EDIT CMS

Advisory ID:HTB22734
Vendor:html-edit web services
Vulnerable Versions:3.1.8 and probably prior
Tested Version:3.1.8
Advisory Publication:December 2, 2010 [without technical details]
Vendor Notification:December 2, 2010
Public Disclosure:December 16, 2010
Latest Update:December 9, 2010
Vulnerability Type:SQL Injection [CWE-89]
Cross-Site Scripting [CWE-79]
Information Exposure Through Externally-generated Error Message [CWE-211]
CVE References:CVE-2010-4609
Risk Level:High
CVSSv2 Base Scores:4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
5 (AV:N/AC:L/Au:N/C:P/I:N/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 HTML-EDIT CMS which could be exploited to perform cross-site scripting and SQL injection attacks.

1) Cross-site scripting (XSS) vulnerability in HTML-EDIT CMS: CVE-2010-4610
The vulnerability exists due to input sanitation error in the "error" parameter in index.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.
Exploitation example:

2) SQL injection vulnerabilities in HTML-EDIT CMS: CVE-2010-4609
The vulnerability exists due to input sanitation errors in the "nuser" parameter in index.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary SQL commands in application`s database. Successful exploitation may allow an attacker to read, modify, add or delete arbitrary data in the database.
Exploitation example:
<form action="http://[host]/index.php?pageid=ext&ext=login&extpage=registrate" method="post" name="main" >
<input type="hidden" name="nuser" value="123'SQL_CODE"/>
<input type="hidden" name="npass" value="password"/>
<input type="hidden" name="renpass" value="password"/>
<input type="hidden" name="gvrg" value="1"/>
<input type="hidden" name="antw" value="2"/>
<input type="hidden" name="email" value=""/>
<input type="submit" value="Registrate" name="submit" />

3) Installation path disclosure weakness in HTML-EDIT CMS: CVE-2010-4611
The weakness was found in the includes/core_files/pages.php, includes/core_files/menu.php and extensions/login/frontend/pages/antihacker.php scripts. A remote attacker can obtain knowledge of the application`s installation folder by directly accessing the vulnerable scripts.

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[1] High-Tech Bridge Advisory HTB22734 - - Multiple Vulnerabilities in HTML-EDIT CMS
[2] HTML-EDIT CMS - - HTML-EDIT CMS is a free, easy, secure and open source content management system.
[3] Common Vulnerabilities and Exposures (CVE) - - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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