{"id":23247,"date":"2025-04-14T17:09:09","date_gmt":"2025-04-14T17:09:09","guid":{"rendered":""},"modified":"2025-05-26T11:55:24","modified_gmt":"2025-05-26T11:55:24","slug":"cve-2022-45794-network-based-manipulation-of-plc-internal-memory-and-memory-card","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2022-45794-network-based-manipulation-of-plc-internal-memory-and-memory-card\/","title":{"rendered":"<strong>CVE-2022-45794: Network-based Manipulation of PLC Internal Memory and Memory Card<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity world has recently been exposed to a new vulnerability, CVE-2022-45794. This vulnerability affects programmable logic controllers (PLCs) of the CJ-series and CS-series, irrespective of their versions. PLCs are crucial components in industrial control systems and automation, hence, their breach can lead to severe implications, including <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0576-critical-vulnerability-in-totolink-lr1200gb-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"29435\">system compromise and potential<\/a> data leakage. The gravity of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0577-critical-vulnerability-in-totolink-lr1200gb-router-allows-potential-remote-exploitation\/\"  data-wpil-monitor-id=\"29434\">vulnerability lies in the fact that it allows<\/a> an attacker with network access to read and write files on the PLC&#8217;s internal memory and memory card, potentially giving them control over the entire system.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2022-45794<br \/>\nSeverity: High (8.6 CVSS score)<br \/>\nAttack Vector: Network-based<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33033-audio-playback-memory-corruption-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31225\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-932818720\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>CJ-series PLCs | All Versions<br \/>\nCS-series PLCs | All Versions<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The attacker, given they have <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2945-unveiling-the-system-access-vulnerability-in-network-security-protocols\/\"  data-wpil-monitor-id=\"28025\">network access<\/a>, uses a specific network protocol to initiate the exploit. This protocol allows the attacker to send requests directly to the PLC, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0056-microsoft-sql-data-provider-security-feature-bypass-vulnerability\/\"  data-wpil-monitor-id=\"31226\">bypassing any existing security<\/a> measures. Once the communication is established, the attacker can send commands to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-48766-critical-unauthenticated-file-reading-vulnerability-in-netalertx\/\"  data-wpil-monitor-id=\"50113\">read or write files<\/a> on the PLC&#8217;s internal memory and memory card. This access, if used maliciously, can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0572-critical-vulnerability-in-totolink-lr1200gb-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"29436\">lead to system<\/a> compromise and data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2107064323\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Here is a conceptual representation of how the <a href=\"https:\/\/www.ameeba.com\/blog\/fortinet-s-fortigate-vulnerability-ssl-vpn-symlink-exploit-puts-user-access-at-risk-post-patching\/\"  data-wpil-monitor-id=\"31227\">vulnerability might be exploited<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/plc\/memory HTTP\/1.1\nHost: target.example.com\n{ &quot;command&quot;: &quot;read&quot;, &quot;filename&quot;: &quot;\/etc\/passwd&quot; }<\/code><\/pre>\n<p>In this example, the attacker sends a GET request to the PLC&#8217;s memory endpoint. The command &#8220;read&#8221; is issued along with the filename &#8220;\/etc\/passwd&#8221;, which is a common target for attackers seeking to gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26733-unauthorized-access-vulnerability-in-shinetheme-traveler-software\/\"  data-wpil-monitor-id=\"34234\">unauthorized access<\/a> to a system.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The best way to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-51063-understanding-and-mitigating-a-dom-based-xss-vulnerability-in-qstar-archive-solutions\/\"  data-wpil-monitor-id=\"28024\">mitigate the impact of this vulnerability<\/a> is to apply the vendor patch as soon as it becomes available. Until then, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-43514-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31582\">systems can monitor network traffic and identify and block potential<\/a> threats. Additionally, minimizing the number of people with network <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46625-root-shell-access-exploit-in-tenda-rx2-pro-router\/\"  data-wpil-monitor-id=\"42912\">access to the PLCs can also help prevent exploitation<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity world has recently been exposed to a new vulnerability, CVE-2022-45794. This vulnerability affects programmable logic controllers (PLCs) of the CJ-series and CS-series, irrespective of their versions. PLCs are crucial components in industrial control systems and automation, hence, their breach can lead to severe implications, including system compromise and potential data leakage. The [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-23247","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/23247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=23247"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/23247\/revisions"}],"predecessor-version":[{"id":44716,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/23247\/revisions\/44716"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=23247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=23247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=23247"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=23247"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=23247"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=23247"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=23247"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=23247"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=23247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}