{"id":28192,"date":"2020-09-02T06:52:17","date_gmt":"2020-09-02T06:52:17","guid":{"rendered":"https:\/\/hosting.nl\/blog\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\/"},"modified":"2020-09-02T06:52:17","modified_gmt":"2020-09-02T06:52:17","slug":"hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites","status":"publish","type":"post","link":"https:\/\/hosting.nl\/en\/blog\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\/","title":{"rendered":"Hackers exploit critical &#8220;zero day&#8221; leak affecting more than 350,000 websites"},"content":{"rendered":"<p>The leak is in the plugin <a href=\"https:\/\/wordpress.org\/plugins\/wp-file-manager\/\" target=\"_blank\" rel=\"noopener\">wp-file-manager<\/a> and is present in versions 6.0 through 6.8 and affects <a href=\"https:\/\/wordpress.org\/plugins\/wp-file-manager\/advanced\/\" target=\"_blank\" rel=\"noopener\">about 50% of the users<\/a> of this plugin.<\/p>\n<p><!--more--><\/p>\n<p><em>Last update: 02-09 at 10.01<\/em><\/p>\n<p>Hackers are actively exploiting a leak that allows them to execute commands and upload rogue files to any website with a vulnerable version of the wp-file-manager plugin. The vulnerability was <a href=\"https:\/\/plugins.trac.wordpress.org\/changeset\/2373068\/wp-file-manager\" target=\"_blank\" rel=\"noopener\">fixed<\/a> by the plugin&#8217;s developers last night and has since been actively abused on older versions.<\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">Oh crap!!! The WP File Manager vulnerability is SERIOUS. Its spreading fast and I&#8217;m seeing hundreds of sites getting infected. Malware is being uploaded to \/wp-content\/plugins\/wp-file-manager\/lib\/files <a href=\"https:\/\/twitter.com\/hashtag\/WordPress?src=hash&amp;ref_src=twsrc%5Etfw\">#WordPress<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/WordPressMalware?src=hash&amp;ref_src=twsrc%5Etfw\">#WordPressMalware<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/Malware?src=hash&amp;ref_src=twsrc%5Etfw\">#Malware<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/webhosting?src=hash&amp;ref_src=twsrc%5Etfw\">#webhosting<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/wordpresssecurity?src=hash&amp;ref_src=twsrc%5Etfw\">#wordpresssecurity<\/a><\/p>\n<p>&#8211; S.Aguilar (@RipeR81) <a href=\"https:\/\/twitter.com\/RipeR81\/status\/1300948862727843846?ref_src=twsrc%5Etfw\">September 2, 2020<\/a><\/p><\/blockquote>\n<p><script async=\"\" src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<h2>As a website owner, what should you do now?<\/h2>\n<p>Update (or uninstall) the wp-file-manager plugin today! The steps:<\/p>\n<ul>\n<li>Log in to your WordPress dashboard (domainname.co.uk\/admin)<\/li>\n<li>Click on <strong>&#8216;Plugins&#8217;<\/strong><\/li>\n<li>Under the <strong>&#8216;File Manager&#8217;<\/strong> plugin you will find the text below. Click on <strong>&#8216;Update Now&#8217;<\/strong><\/li>\n<\/ul>\n<p><pre><code class=\"language-bash\">Er is een nieuwe versie van File Manager beschikbaar. Details van 6.9 bekijken of nu bijwerken.<\/code><\/pre><\/p>\n<p>The plugin is now updated to the latest version and no longer vulnerable. However, that vulnerability may have already been exploited, <a href=\"https:\/\/hosting.nl\/support\/hoe-repareer-je-een-gehackte-wordpress-website-met-behulp-van-gratis-plugins\/\" target=\"_blank\" rel=\"noopener\">so take additional steps to protect your website.<\/a><\/p>\n<h2>Additional technical information (for IT professionals)<\/h2>\n<p><em>Do you have additional information you would like to share? Send an email to mark@sqr.nl<\/em><\/p>\n<p>The leak was first reported last night by website security firm NinTechNet on their <a href=\"https:\/\/blog.nintechnet.com\/critical-zero-day-vulnerability-fixed-in-wordpress-file-manager-700000-installations\/\" target=\"_blank\" rel=\"noopener\">blog<\/a> after the plugin&#8217;s developers patched the vulnerability.<\/p>\n<p>The vulnerability allows unauthorized individuals to use the file management plugin by placing an unprotected file in the <strong>&#8216;elFinder&#8217;<\/strong> package, which the plugin uses. NinTechNet has shared a snippet from the access logs of a hacked Web site:<\/p>\n<pre><pre><code class=\"language-bash\">185.222.57.0 - - [31\/Aug\/2020:21:37:25 +0200] \"POST \/\/wp-content\/plugins\/wp-file-manager\/lib\/php\/connector.minimal.php HTTP\/1.1\" 200 1085 www.xxxxxxxxx.com \"-\" \"python-requests\/2.24.0\" \"-\" \n185.222.57.0 - - [31\/Aug\/2020:21:37:29 +0200] \"POST \/\/wp-content\/plugins\/wp-file-manager\/lib\/<\/code><\/pre><\/pre>\n<p>This hacker uploaded the file hardfork.php and used that script to inject code into WordPress <pre><code>\/wp-admin\/admin-ajax.php<\/code><\/pre> and <pre><code>\/wp-includes\/user.php<\/code><\/pre>.<br \/>\nOther files uploaded are hardfork.php, hardfind.php, x.php, <a href=\"https:\/\/gist.github.com\/riper81\/bd48e4a56b0a20fefd0a2afbd77b5302#file-sadgafasdf-php\">sadgafasdf.php<\/a> and <a href=\"https:\/\/gist.github.com\/riper81\/bd48e4a56b0a20fefd0a2afbd77b5302#file-xsdaadf-php\">xsdaadf.php<\/a><\/p>\n<p>At the time of writing, the leak is being exploited from three <a href=\"https:\/\/twitter.com\/RipeR81\/status\/1300962394437550081\" target=\"_blank\" rel=\"noopener\">ip ranges<\/a>:<\/p>\n<p><pre><code class=\"language-bash\">185.222.57.0\/24<br \/>\n89.238.178.0\/24<br \/>\n74.50.48.0\/20<\/code><\/pre><\/p>\n<p>Want to know more about elFinder or how the vulnerability works? Then take a look at <a href=\"https:\/\/www.wordfence.com\/blog\/2020\/09\/700000-wordpress-users-affected-by-zero-day-vulnerability-in-file-manager-plugin\/\" target=\"_blank\" rel=\"noopener\">this blog post<\/a> from WordFence.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The leak is in the plugin wp-file-manager and is present in versions 6.0 through 6.8 and affects about 50% of the users of this plugin.<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28192","post","type-post","status-publish","format-standard","hentry","category-nieuws"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hackers exploit critical &quot;zero day&quot; leak affecting more than 350,000 websites | Hosting.NL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hosting.nl\/en\/blog\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hackers exploit critical &quot;zero day&quot; leak affecting more than 350,000 websites | Hosting.NL\" \/>\n<meta property=\"og:description\" content=\"The leak is in the plugin wp-file-manager and is present in versions 6.0 through 6.8 and affects about 50% of the users of this plugin.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hosting.nl\/en\/blog\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\/\" \/>\n<meta property=\"og:site_name\" content=\"Hosting.NL\" \/>\n<meta property=\"article:published_time\" content=\"2020-09-02T06:52:17+00:00\" \/>\n<meta name=\"author\" content=\"Mark Kraakman\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Kraakman\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/hosting.nl\\\/en\\\/blog\\\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hosting.nl\\\/en\\\/blog\\\/hackers-exploit-critical-zero-day-leak-affecting-more-than-350000-websites\\\/\"},\"author\":{\"name\":\"Mark Kraakman\",\"@id\":\"https:\\\/\\\/hosting.nl\\\/en\\\/#\\\/schema\\\/person\\\/22ba9dfdfb0dd056274cec0357468cc8\"},\"headline\":\"Hackers exploit critical &#8220;zero day&#8221; 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