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Multiple Vulnerabilities in Habari

Advisory ID:HTB22731
Product:Habari
Vendor:Habari
Vulnerable Versions:0.6.5 and probably prior
Tested Version:0.6.5
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:Cross-Site Scripting [CWE-79]
Information Exposure Through Externally-generated Error Message [CWE-211]
CVE References:CVE-2010-4608
CVE-2010-4607
Risk Level:Medium
CVSSv2 Base Scores:5 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
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 Habari which could be exploited to perform cross-site scripting attacks and gain potentially sensitive information.

1) Information disclosure weakness in Habari: CVE-2010-4608
The weakness was found in the "/system/admin/header.php" and "/system/admin/comments_items.php" scripts. A remote attacker can obtain knowledge of the application`s installation path by directly accessing the system/admin/header.php and system/admin/comments_items.php scripts.
Exploitation example:
http://[host]/system/admin/header.php
http://[host]/system/admin/comments_items .php


2) Cross-site scripting (XSS) vulnerabilities in Habari: CVE-2010-4607
2.1 The vulnerability exists due to input sanitation error in the "additem_form" parameter in system/admin/dash_additem.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 and that register_globals is on.
Exploitation example:
http://[host]/system/admin/dash_additem.php?additem_form=<script>alert('XSS');</ script>
2.2 The vulnerability exists due to input sanitation error in the "status_data" parameter in system/admin/dash_status.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 and that register_globals is on.
Exploitation example:
http://habari/system/admin/dash_status.php?status_data[1]=<script>alert('XSS');< /script>


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Solution:
Upgrade to version 0.6.6.


References:
[1] High-Tech Bridge Advisory HTB22731 - https://www.htbridge.com/advisory/HTB22731 - Multiple Vulnerabilities in Habari
[2] Habari - habariproject.org - Habari is a free and open source blog engine written in PHP and currently supports MySQL, SQLite and PostgreSQL for the database backend.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - 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) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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