{"id":53648,"date":"2025-06-19T17:45:40","date_gmt":"2025-06-19T17:45:40","guid":{"rendered":""},"modified":"2025-09-16T06:14:20","modified_gmt":"2025-09-16T12:14:20","slug":"cve-2025-28389-critical-security-vulnerability-in-openc3-cosmos-v6-0-0-due-to-weak-password-requirements","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-28389-critical-security-vulnerability-in-openc3-cosmos-v6-0-0-due-to-weak-password-requirements\/","title":{"rendered":"<strong>CVE-2025-28389: Critical Security Vulnerability in OpenC3 COSMOS v6.0.0 Due to Weak Password Requirements<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>An alarming cybersecurity vulnerability, CVE-2025-28389, has been identified in OpenC3 COSMOS v6.0.0. This vulnerability arises due to weak password requirements, allowing potential attackers to bypass authentication via a brute force attack. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5853-critical-vulnerability-in-tenda-ac6-router-may-lead-to-system-compromise\/\"  data-wpil-monitor-id=\"60035\">vulnerability is particularly concerning as it could lead to system<\/a> compromise and data leakage, posing a significant threat to organizations using OpenC3 COSMOS v6.0.0. Ensuring the security of systems and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31396-untrusted-data-deserialization-vulnerability-in-themeton-flap-business-wordpress-theme\/\"  data-wpil-monitor-id=\"60247\">data is crucial to businesses<\/a>, hence it is imperative to understand this vulnerability and how to mitigate its risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-28389<br \/>\nSeverity: Critical &#8211; CVSS Severity Score 9.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40912-critical-vulnerability-in-cryptx-for-perl-allows-potential-system-compromise\/\"  data-wpil-monitor-id=\"60800\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-455983597\" 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><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28386-remote-code-execution-vulnerability-in-openc3-cosmos-v6-0-0\/\"  data-wpil-monitor-id=\"61444\">OpenC3 COSMOS<\/a> | v6.0.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability, CVE-2025-28389, is <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5353-local-authenticated-attacker-exploit-in-ivanti-workspace-control\/\"  data-wpil-monitor-id=\"61445\">exploited through a network-based brute force attack<\/a>. Due to weak password requirements in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28388-hardcoded-credentials-vulnerability-in-openc3-cosmos-v6-0-0\/\"  data-wpil-monitor-id=\"61465\">OpenC3 COSMOS<\/a> v6.0.0, attackers can attempt numerous password combinations in a short amount of time. This eventually allows them to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31022-critical-authentication-bypass-vulnerability-in-payu-india\/\"  data-wpil-monitor-id=\"60184\">bypass the authentication<\/a> process. Once bypassed, the attackers gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49136-critical-vulnerability-in-listmonk-allows-unauthorized-access-to-sensitive-environment-variables\/\"  data-wpil-monitor-id=\"60362\">unauthorized access<\/a> to the system, potentially leading to system compromise and data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3079799692\" 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>The following pseudocode represents a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7393-critical-brute-force-vulnerability-in-drupal-mail-login\/\"  data-wpil-monitor-id=\"69392\">vulnerability might be exploited using a brute force<\/a> attack:<\/p>\n<pre><code class=\"\" data-line=\"\">import itertools\ndef brute_force_attack(host, username):\npossible_passwords = itertools.product(range(10), repeat=4) # assuming 4 digit numeric password\nfor password in possible_passwords:\nresponse = send_login_request(host, username, &#039;&#039;.join(map(str, password)))\nif response.status_code == 200: # if login successful\nreturn &#039;&#039;.join(map(str, password))\nreturn None\ndef send_login_request(host, username, password):\n# This is a placeholder function. In a real attack, this would\n# send a network request to the target system.\npass<\/code><\/pre>\n<p>Above code will try all possible combinations of a four-digit numeric password and check the response. If the login is successful, the password is returned.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are recommended to immediately apply the vendor patch once it&#8217;s <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24775-high-severity-unrestricted-file-upload-vulnerability-in-made-i-t-forms\/\"  data-wpil-monitor-id=\"83086\">made available to address this vulnerability<\/a>. In the meantime, as a temporary mitigation, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"61514\">users can employ a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block suspicious activities, such as multiple failed login attempts, thereby preventing brute force attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview An alarming cybersecurity vulnerability, CVE-2025-28389, has been identified in OpenC3 COSMOS v6.0.0. This vulnerability arises due to weak password requirements, allowing potential attackers to bypass authentication via a brute force attack. This vulnerability is particularly concerning as it could lead to system compromise and data leakage, posing a significant threat to organizations using OpenC3 [&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":[75],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-53648","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-authentication-bypass"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53648","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=53648"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53648\/revisions"}],"predecessor-version":[{"id":75624,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53648\/revisions\/75624"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53648"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53648"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53648"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53648"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53648"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53648"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}