{"id":72972,"date":"2023-10-20T11:56:46","date_gmt":"2023-10-20T03:56:46","guid":{"rendered":"https:\/\/version-2.com\/?p=72972"},"modified":"2023-10-12T11:58:25","modified_gmt":"2023-10-12T03:58:25","slug":"how-to-find-exim-mail-servers-on-your-network","status":"publish","type":"post","link":"https:\/\/version-2.com\/en\/2023\/10\/how-to-find-exim-mail-servers-on-your-network\/","title":{"rendered":"How to find Exim mail servers on your network"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"72972\" class=\"elementor elementor-72972\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4da8c5f9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4da8c5f9\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;decf9c3&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:&quot;1&quot;,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-133ba185\" data-id=\"133ba185\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fc2da8d post-content elementor-widget elementor-widget-text-editor\" data-id=\"fc2da8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"mr-4 ml-4 mt-0 blog-body\"><p>On September 27th, Trend Micro\u2019s Zero Day Initiative (ZDI) published <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1469\/\" target=\"_blank\" rel=\"noopener\">details<\/a> of a critical zero-day vulnerability that allows an unauthenticated attacker the ability to remotely execute arbitrary code within the context of an Exim SMTP service account.<br \/>In addition, ZDI disclosed five additional zero-day vulnerabilities with lower severity rankings:\u00a0<\/p><ul><li>CVE-2023-42116: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1470\/\" target=\"_blank\" rel=\"noopener\">Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability<\/a> (CVSS v3.0 8.1)<\/li><li>CVE-2023-42117: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1471\/\" target=\"_blank\" rel=\"noopener\">Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability<\/a> (CVSS v3.0 8.1)<\/li><li>CVE-2023-42118: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1472\/\" target=\"_blank\" rel=\"noopener\">Exim libspf2 Integer Underflow Remote Code Execution Vulnerability<\/a> (CVSS v3.0 7.5)<\/li><li>CVE-2023-42119: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1473\/\" target=\"_blank\" rel=\"noopener\">Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability<\/a> (CVSS v3.0 3.1)<\/li><li>CVE-2023-42114: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1468\/\" target=\"_blank\" rel=\"noopener\">Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability<\/a> (CVSS v3.0 3.7)<\/li><\/ul><h2 id=\"what-is-exim-mail\">What is Exim Mail?<\/h2><p><a href=\"https:\/\/www.exim.org\/\" target=\"_blank\" rel=\"noopener\">Exim mail<\/a> is an open source, message transfer agent (MTA) that runs on Unix\/Linux operating systems. Exim is also the default MTA configured on Debian Linux distributions.<\/p><h2 id=\"are-updates-available\">Are updates available?<\/h2><p>Recently, maintainers of the Exim mail server issued <a href=\"https:\/\/www.exim.org\/static\/doc\/security\/CVE-2023-zdi.txt\" target=\"_blank\" rel=\"noopener\">a 4.96.1 patch<\/a> that appears to resolve four of the six vulnerabilities listed above. Although the maintainers are still working to resolve the remaining vulnerabilities,<br \/>if you are running Exim mail servers on your network, you should apply the security patch immediately.<\/p><h2 id=\"how-do-i-find-potentially-vulnerable-exim-mail-servers-with-runzero\">How do I find potentially vulnerable Exim mail servers with runZero?<\/h2><p>A <a href=\"https:\/\/www.shodan.io\/\" target=\"_blank\" rel=\"noopener\">Shodan<\/a> search showed nearly 3.5 million Exim servers exposed to the internet. Their accessibility makes these mail transfer agents targets for attackers.<\/p><p>With runZero, you can find Exim mail servers in your inventory with this <a href=\"https:\/\/console.runzero.com\/inventory?search=product%3Aexim\" target=\"_blank\" rel=\"noopener\">pre-built query<\/a>. This query searches for any live asset that has the <code>exim<\/code> product exposed over SMTP.<\/p><pre tabindex=\"0\"><code>product:exim\n<\/code><\/pre><p>As always, any prebuilt queries are available from your <a href=\"https:\/\/console.runzero.com\/queries\" target=\"_blank\" rel=\"noopener\">runZero console<\/a>. Check out the documentation for other useful inventory <a href=\"https:\/\/www.runzero.com\/docs\/search-query-syntax\/\" target=\"_blank\" rel=\"noopener\">queries<\/a>.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8085a61 post-content elementor-widget elementor-widget-shortcode\" data-id=\"8085a61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"page\" data-elementor-id=\"18103\" class=\"elementor elementor-18103\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-748947f elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"748947f\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;_id&quot;:&quot;c4f773e&quot;,&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:&quot;1&quot;,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7995c19\" data-id=\"7995c19\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a437045 elementor-widget elementor-widget-image-box\" data-id=\"a437045\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">About Version 2 Digital<\/h3><p class=\"elementor-image-box-description\">Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.\n<br><br>\nThrough an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\n\t\t<div data-elementor-type=\"page\" data-elementor-id=\"55060\" class=\"elementor elementor-55060\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6b25dc0d elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"6b25dc0d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[{&quot;_id&quot;:&quot;c4f773e&quot;,&quot;jet_parallax_layout_image&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_tablet&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_image_mobile&quot;:{&quot;url&quot;:&quot;&quot;,&quot;id&quot;:&quot;&quot;,&quot;size&quot;:&quot;&quot;},&quot;jet_parallax_layout_speed&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:50,&quot;sizes&quot;:[]},&quot;jet_parallax_layout_type&quot;:&quot;scroll&quot;,&quot;jet_parallax_layout_direction&quot;:&quot;1&quot;,&quot;jet_parallax_layout_fx_direction&quot;:null,&quot;jet_parallax_layout_z_index&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x&quot;:50,&quot;jet_parallax_layout_bg_x_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_x_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y&quot;:50,&quot;jet_parallax_layout_bg_y_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_y_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size&quot;:&quot;auto&quot;,&quot;jet_parallax_layout_bg_size_tablet&quot;:&quot;&quot;,&quot;jet_parallax_layout_bg_size_mobile&quot;:&quot;&quot;,&quot;jet_parallax_layout_animation_prop&quot;:&quot;transform&quot;,&quot;jet_parallax_layout_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;]}]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3cc1b37d\" data-id=\"3cc1b37d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52c4a230 elementor-widget elementor-widget-text-editor\" data-id=\"52c4a230\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>About runZero<\/strong><br \/>runZero, a network discovery and asset inventory solution, was founded in 2018 by HD Moore, the creator of Metasploit. HD envisioned a modern active discovery solution that could find and identify everything on a network\u2013without credentials. As a security researcher and penetration tester, he often employed benign ways to get information leaks and piece them together to build device profiles. Eventually, this work led him to leverage applied research and the discovery techniques developed for security and penetration testing to create runZero.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>On September 27th, Trend Micro\u2019s Zero Day Initiative (Z [&hellip;]<\/p>","protected":false},"author":149011790,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[976,1075,61],"tags":[977,1076],"class_list":["post-72972","post","type-post","status-publish","format-standard","hentry","category-runzero","category-year2023","category-press-release","tag-runzero","tag-1076"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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