{"id":28040,"date":"2025-04-20T21:27:07","date_gmt":"2025-04-20T21:27:07","guid":{"rendered":""},"modified":"2025-04-23T06:19:27","modified_gmt":"2025-04-23T06:19:27","slug":"cve-2023-48263-unauthenticated-remote-attack-leading-to-dos-and-potential-rce","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-48263-unauthenticated-remote-attack-leading-to-dos-and-potential-rce\/","title":{"rendered":"<strong>CVE-2023-48263: Unauthenticated Remote Attack Leading to DoS and Potential RCE<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2023-48263 vulnerability is a severe security flaw that allows an unauthenticated remote attacker to potentially compromise your system or leak sensitive data. This vulnerability poses a significant threat to all systems using the affected software versions, and its exploitation can lead to a Denial-of-Service (DoS) attack or even Remote Code Execution (RCE). This is an issue of high concern as it involves the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23391-incorrect-privilege-assignment-in-suse-rancher-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"33060\">potential for system<\/a> compromise, which can have devastating effects on personal privacy and business data integrity.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-48263<br \/>\nSeverity: High (8.1 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Possible system compromise or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50350-broken-cryptographic-algorithm-leads-to-potential-data-leakage-in-hcl-dryice-myxalytics\/\"  data-wpil-monitor-id=\"33664\">data leakage<\/a> due to successful DoS attack or RCE<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3974179416\" 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>Product A | Version 1.0 to 2.3<br \/>\nProduct B | Version 2.1 to 3.5<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2023-48263 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-45230-buffer-overflow-vulnerability-in-edk2-s-network-package\/\"  data-wpil-monitor-id=\"33379\">vulnerability exploits a flaw in the processing of network<\/a> requests by the affected software. An attacker can craft a specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-45234-critical-buffer-overflow-vulnerability-in-edk2-s-network-package\/\"  data-wpil-monitor-id=\"33384\">network request that the vulnerable<\/a> software is unable to handle correctly. This allows the attacker to exhaust system resources, causing a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-56406-buffer-overflow-vulnerability-in-perl-leading-to-potential-denial-of-service-and-code-execution\/\"  data-wpil-monitor-id=\"33120\">Denial of Service<\/a>.<br \/>\nAlternatively, if the malformed request is processed in a certain way, it may allow the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29017-remote-code-execution-in-code-astro-internet-banking-system-2-0-0\/\"  data-wpil-monitor-id=\"32834\">execute arbitrary code on the affected system<\/a>. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32743-critical-vulnerability-in-connman-could-lead-to-system-compromise\/\"  data-wpil-monitor-id=\"32186\">lead to a full system<\/a> compromise, giving the attacker the ability to access or manipulate sensitive data, or use the compromised system as a launchpad for further attacks.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-786642109\" 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 exact details of the exploit are not disclosed to prevent misuse, but a conceptual example of a malicious request might look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;malicious_payload&quot;: &quot;crafted_string_causing_dos_or_rce&quot; }<\/code><\/pre>\n<p>In this example, the &#8220;malicious_payload&#8221; field contains a crafted string that triggers the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37297-vulnerability-in-ami-s-spx-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"33397\">vulnerability when processed by the target system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2023-48263 vulnerability is a severe security flaw that allows an unauthenticated remote attacker to potentially compromise your system or leak sensitive data. This vulnerability poses a significant threat to all systems using the affected software versions, and its exploitation can lead to a Denial-of-Service (DoS) attack or even Remote Code Execution (RCE). This [&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":[87,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-28040","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-dos","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28040","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=28040"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28040\/revisions"}],"predecessor-version":[{"id":29484,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/28040\/revisions\/29484"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=28040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=28040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=28040"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=28040"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=28040"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=28040"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=28040"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=28040"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=28040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}