Ajax Pagination 1.1 Local File Inclusion

Credit: Glyn Wintle
Risk: Medium
Local: No
Remote: Yes

Details ================ Software: Ajax Pagination (twitter Style) Version: 1.1 Homepage: http://wordpress.org/plugins/ajax-pagination/ CVSS: 9.3 (High; AV:N/AC:M/Au:N/C:C/I:C/A:C) Description ================ End-user exploitable local file inclusion vulnerability in Ajax Pagination (twitter Style) 1.1 Vulnerability ================ This plugin contains a file inclusion vulnerability that is exploitable by an unauthenticated user. The user can include any local file ending in .php which is accessible to the web user. Proof of concept ================ A non-logged in user can call the ajax function wp_ajax_nopriv_ajax_navigation that calls ajax_navigation_callback in ajax-pagination-front.php at line 75. By setting the value of loop in the POST data, they can include the contents of that path on the returned page. For example, to include the contents of wp-login.php in the returned page, send the following: POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1 Host: Content-Length: 53 Content-Type: application/x-www-form-urlencoded; charset=UTF-8 paged=2&action=ajax_navigation&loop=../../../wp-login Mitigations ================ Disable the plugin until a fix is available. 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. Please note that this vulnerability will be published if we do not receive a response to this report with 14 days. Timeline ================ 2014-02-18: Reported to nuwan28@gmail.com and plugins@wordpress.org 2014-03-28: No response received to reports. Vulnerability published. Discovered by dxw: ================ Glyn Wintle Please visit security.dxw.com for more information.

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