Bash Remote Code Execution Vulnerability: Cơ chế, Khai thác và Phòng chống
September 18 2025
About the author
My passion is hunting down the latest attack trends—ransomware, APTs, you name it—while passing on knowledge to help businesses forge ironclad defenses. I’ve left my mark on data encryption projects and intrusion detection tools now widely used across Vietnam. I’m the shadow that strikes before the enemy does.
@#@
Đam mê của tôi là nghiên cứu các xu hướng tấn công mới nhất như ransomware và APTs, đồng thời chia sẻ kiến thức để giúp doanh nghiệp xây dựng chiến lược phòng thủ hiệu quả. Tôi từng đóng góp vào các dự án mã hóa dữ liệu và phát triển công cụ phát hiện xâm nhập được sử dụng rộng rãi tại Việt Nam.
Stay up to dateGet the latest threat intelligence, cybersecurity reports from CyStack delivered to your inbox
{"success":true,"head":"<title>Bash Remote Code Execution Vulnerability: Cơ chế, Khai thác và Phòng chống</title>\n<meta name=\"description\" content=\"Bash Remote Code ExecutionVulnerability là lỗ hổng cho phép hacker thực thi mã từ xa trên hệ thống bằng cách lợi dụng cách Bash xử lý biến môi trường.\"/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large\"/>\n<link rel=\"canonical\" href=\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/\" />\n<meta property=\"og:locale\" content=\"en_US\" />\n<meta property=\"og:type\" content=\"article\" />\n<meta property=\"og:title\" content=\"Bash Remote Code Execution Vulnerability: Cơ chế, Khai thác và Phòng chống\" />\n<meta property=\"og:description\" content=\"Bash Remote Code ExecutionVulnerability là lỗ hổng cho phép hacker thực thi mã từ xa trên hệ thống bằng cách lợi dụng cách Bash xử lý biến môi trường.\" />\n<meta property=\"og:url\" content=\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/\" />\n<meta property=\"og:site_name\" content=\"CyStack Tutorial\" />\n<meta property=\"article:tag\" content=\"vi\" />\n<meta property=\"article:section\" content=\"Security\" />\n<meta property=\"og:updated_time\" content=\"2025-09-18T15:20:53+07:00\" />\n<meta property=\"og:image\" content=\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\" />\n<meta property=\"og:image:secure_url\" content=\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\" />\n<meta property=\"og:image:width\" content=\"1200\" />\n<meta property=\"og:image:height\" content=\"630\" />\n<meta property=\"og:image:alt\" content=\"bash remote code execution vulnerability\" />\n<meta property=\"og:image:type\" content=\"image/png\" />\n<meta property=\"article:published_time\" content=\"2025-09-18T09:31:50+07:00\" />\n<meta property=\"article:modified_time\" content=\"2025-09-18T15:20:53+07:00\" />\n<meta name=\"twitter:card\" content=\"summary_large_image\" />\n<meta name=\"twitter:title\" content=\"Bash Remote Code Execution Vulnerability: Cơ chế, Khai thác và Phòng chống\" />\n<meta name=\"twitter:description\" content=\"Bash Remote Code ExecutionVulnerability là lỗ hổng cho phép hacker thực thi mã từ xa trên hệ thống bằng cách lợi dụng cách Bash xử lý biến môi trường.\" />\n<meta name=\"twitter:image\" content=\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\" />\n<meta name=\"twitter:label1\" content=\"Written by\" />\n<meta name=\"twitter:data1\" content=\"Đức Hacker\" />\n<meta name=\"twitter:label2\" content=\"Time to read\" />\n<meta name=\"twitter:data2\" content=\"5 minutes\" />\n<script type=\"application/ld+json\" class=\"rank-math-schema\">{\"@context\":\"https://schema.org\",\"@graph\":[{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https://blog.cystack.org/tutorial/#person\",\"name\":\"CyStack Tutorial\"},{\"@type\":\"WebSite\",\"@id\":\"https://blog.cystack.org/tutorial/#website\",\"url\":\"https://blog.cystack.org/tutorial\",\"name\":\"CyStack Tutorial\",\"publisher\":{\"@id\":\"https://blog.cystack.org/tutorial/#person\"},\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\",\"url\":\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\",\"width\":\"1200\",\"height\":\"630\",\"caption\":\"bash remote code execution vulnerability\",\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":\"1\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":\"2\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial/category/security/\",\"name\":\"Security\"}},{\"@type\":\"ListItem\",\"position\":\"3\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/\",\"name\":\"Bash Remote Code Execution Vulnerability: C\\u01a1 ch\\u1ebf, Khai th\\u00e1c v\\u00e0 Ph\\u00f2ng ch\\u1ed1ng\"}}]},{\"@type\":\"WebPage\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#webpage\",\"url\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/\",\"name\":\"Bash Remote Code Execution Vulnerability: C\\u01a1 ch\\u1ebf, Khai th\\u00e1c v\\u00e0 Ph\\u00f2ng ch\\u1ed1ng\",\"datePublished\":\"2025-09-18T09:31:50+07:00\",\"dateModified\":\"2025-09-18T15:20:53+07:00\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/tutorial/#website\"},\"primaryImageOfPage\":{\"@id\":\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\"},\"inLanguage\":\"en-US\",\"breadcrumb\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#breadcrumb\"}},{\"@type\":\"Person\",\"@id\":\"https://blog.cystack.org/tutorial/author/duchacker/\",\"name\":\"\\u0110\\u1ee9c Hacker\",\"url\":\"https://blog.cystack.org/tutorial/author/duchacker/\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https://secure.gravatar.com/avatar/7b8b6e4bc4811342b8e2f2134f90dda5961f2d4f8e7da5ec77e52bb909a19782?s=96&d=mm&r=g\",\"url\":\"https://secure.gravatar.com/avatar/7b8b6e4bc4811342b8e2f2134f90dda5961f2d4f8e7da5ec77e52bb909a19782?s=96&d=mm&r=g\",\"caption\":\"\\u0110\\u1ee9c Hacker\",\"inLanguage\":\"en-US\"}},{\"@type\":\"BlogPosting\",\"headline\":\"Bash Remote Code Execution Vulnerability: C\\u01a1 ch\\u1ebf, Khai th\\u00e1c v\\u00e0 Ph\\u00f2ng ch\\u1ed1ng\",\"keywords\":\"bash remote code execution vulnerability\",\"datePublished\":\"2025-09-18T09:31:50+07:00\",\"dateModified\":\"2025-09-18T15:20:53+07:00\",\"articleSection\":\"Security\",\"author\":{\"@id\":\"https://blog.cystack.org/tutorial/author/duchacker/\",\"name\":\"\\u0110\\u1ee9c Hacker\"},\"publisher\":{\"@id\":\"https://blog.cystack.org/tutorial/#person\"},\"description\":\"Bash Remote Code ExecutionVulnerability l\\u00e0 l\\u1ed7 h\\u1ed5ng cho ph\\u00e9p hacker th\\u1ef1c thi m\\u00e3 t\\u1eeb xa tr\\u00ean h\\u1ec7 th\\u1ed1ng b\\u1eb1ng c\\u00e1ch l\\u1ee3i d\\u1ee5ng c\\u00e1ch Bash x\\u1eed l\\u00fd bi\\u1ebfn m\\u00f4i tr\\u01b0\\u1eddng.\",\"name\":\"Bash Remote Code Execution Vulnerability: C\\u01a1 ch\\u1ebf, Khai th\\u00e1c v\\u00e0 Ph\\u00f2ng ch\\u1ed1ng\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#richSnippet\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#webpage\"},\"image\":{\"@id\":\"https://s2.cystack.net/tutorial/17160539/bash-remote-code-execution.png\"},\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/18/bash-remote-code-execution-vulnerability/#webpage\"}}]}</script>\n"}
