{"id":44450,"date":"2025-05-26T00:40:00","date_gmt":"2025-05-26T00:40:00","guid":{"rendered":""},"modified":"2025-06-17T23:38:47","modified_gmt":"2025-06-18T05:38:47","slug":"cve-2023-42136-arbitrary-command-execution-vulnerability-in-pax-android-pos-devices","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-42136-arbitrary-command-execution-vulnerability-in-pax-android-pos-devices\/","title":{"rendered":"<strong>CVE-2023-42136: Arbitrary Command Execution Vulnerability in PAX Android POS Devices<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the evolving age of digital transactions, the security of Point of Sale (POS) devices has become a paramount concern. This blog post delves deep into a recently discovered vulnerability, CVE-2023-42136, that affects PAX Android based POS devices. This vulnerability, if exploited, can allow the execution of arbitrary commands with system account privilege by shell injection, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4648-integrity-check-vulnerability-in-centreon-web-leading-to-potential-xss-injection\/\"  data-wpil-monitor-id=\"49903\">potentially leading<\/a> to system compromise or data leakage. It&#8217;s imperative to understand the gravity of this security issue as it poses a serious threat to businesses worldwide using these devices, potentially impacting their <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32293-deserialization-of-untrusted-data-vulnerability-in-finance-consultant\/\"  data-wpil-monitor-id=\"54939\">financial transactions and customer data<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-42136<br \/>\nSeverity: High (CVSS: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: High<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-52880-critical-vulnerability-in-insyde-insydeh2o-kernels-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"51464\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3622623059\" 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-2023-42137-high-privilege-command-execution-vulnerability-in-pax-android-pos-devices\/\"  data-wpil-monitor-id=\"51811\">PAX Android POS<\/a> device | PayDroid_8.1.0_Sagittarius_V11.1.50_20230614 or earlier<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32310-privilege-escalation-vulnerability-in-thememove-quickcal-due-to-csrf\/\"  data-wpil-monitor-id=\"50476\">vulnerability arises due<\/a> to an improper sanitization of input in the shell command functions used within the system. An attacker, having gained shell access to the device, can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-41075-high-risk-type-confusion-vulnerability-allowing-arbitrary-code-execution-with-kernel-privileges\/\"  data-wpil-monitor-id=\"51553\">execute arbitrary<\/a> commands with system account privilege by initiating a shell injection starting with a specific keyword. This allows the attacker to manipulate the system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-26625-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"54433\">potentially compromising data<\/a> or manipulating the POS device&#8217;s functionality.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1689268770\" 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 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23394-critical-unix-symbolic-link-following-vulnerability-in-opensuse-tumbleweed-cyrus-imapd\/\"  data-wpil-monitor-id=\"54432\">following pseudocode illustrates how an attacker might exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\"># Attacker gains shell access to the device\n$ ssh user@target_device\n# Attacker uses the specific keyword to initiate shell injection\n$ specific_keyword; arbitrary_command<\/code><\/pre>\n<p>In the above example, the &#8220;specific_keyword&#8221; represents the word that triggers the vulnerability, and &#8220;arbitrary_command&#8221; represents any command that the attacker wishes to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3925-execution-with-unnecessary-privileges-vulnerability-in-brightsign-players\/\"  data-wpil-monitor-id=\"59540\">execute with system-level privileges<\/a>.<\/p>\n<p><strong>Recommended Mitigation<\/strong><\/p>\n<p>To <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-49842-critical-memory-corruption-vulnerability-in-protected-vm-address-space\/\"  data-wpil-monitor-id=\"59541\">protect against this vulnerability<\/a>, the device vendor has released a patch that should be applied immediately. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Remember, these are only temporary solutions and cannot replace the need for a vendor-supplied patch. Regularly updating and patching systems is a <a href=\"https:\/\/www.ameeba.com\/blog\/free-cybersecurity-clinic-in-kalispell-a-crucial-step-in-combating-digital-threats\/\"  data-wpil-monitor-id=\"56532\">crucial part of maintaining cybersecurity<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the evolving age of digital transactions, the security of Point of Sale (POS) devices has become a paramount concern. This blog post delves deep into a recently discovered vulnerability, CVE-2023-42136, that affects PAX Android based POS devices. This vulnerability, if exploited, can allow the execution of arbitrary commands with system account privilege by [&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":[91],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44450","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-google","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44450","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=44450"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44450\/revisions"}],"predecessor-version":[{"id":53230,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44450\/revisions\/53230"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=44450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=44450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=44450"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=44450"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=44450"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=44450"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=44450"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=44450"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=44450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}