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所在平台: Udemy |
课程主页: https://www.udemy.com/course/os-command-injection-best-course/
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课程名称：OWASP TOP 10: 操作系统命令注入 课程概述：操作系统命令注入（Shell Injection或OS command injection）是一种网络安全漏洞，允许攻击者在运行应用程序的服务器上执行任意操作系统命令，通常会完全妥协应用程序及其所有数据。OWASP Top 10 提供了对最关键的网络应用安全风险的排名和修复指导。该报告基于全球安全专家的共识，借助OWASP开放社区贡献者的广泛知识和经验。 课程内容：操作系统命令注入是一种允许攻击者直接在服务器上执行任意命令的漏洞。如果攻击者能够在服务器上执行恶意代码，他们就可能轻易获取反向Shell或在服务器上留下后门。这使得在漏洞赏金和渗透测试中发现操作系统命令注入被标记为严重漏洞，并且根据OWASP "Top 10"列表，这是最常见和影响最大的漏洞之一。 学习操作系统命令注入的必要性：操作系统命令注入是最常见的网络应用安全漏洞之一。它允许威胁行为者通过利用应用程序在输入验证不当（例如缓冲区溢出）的弱点，运行恶意的Shell命令。 代码注入与命令注入的区别：代码注入是指任何类型的攻击，此类攻击涉及通过应用程序注入代码并被其解释或执行。它利用了对不可信数据输入的错误处理。而命令注入通常涉及在系统Shell或环境的其他部分执行命令。攻击者扩展了易受攻击应用程序的默认功能，使其能够将命令传递给系统Shell，而无需注入恶意代码。在许多情况下，命令注入使攻击者对目标系统具有更大的控制权。 常见的操作系统命令注入攻击类型包括： - 任意命令注入 - 不安全的序列化 - XML外部实体注入（XXE） - 任意文件上传/包含 - 服务器端模板注入（SSTI） 防止操作系统命令注入的方法： - 避免系统调用和用户输入 - 设置输入验证 - 创建白名单 - 安全使用execFile() 如果您希望学习并在道德黑客领域发展职业生涯，欢迎加入我们。
Shell Injection (also known as OS command injection ) is a web security vulnerability that allows an attacker to execute arbitrary operating system (OS) commands on the server that is running an application, and typically fully compromise the application and all its data.The OWASP Top 10 provides rankings of-and remediation guidance for-the top 10 most critical web application security risks. Leveraging the extensive knowledge and experience of the OWASP's open community contributors, the report is based on a consensus among security experts from around the world.What is OS command injection?An OS command injection is a vulnerability that allows an attacker to execute arbitrary commands directly on the server. If you haven't already realized, if an attacker is able to execute malicious code on the server, he could easily get a reverse shell or a backdoor into the server.So finding Os command injection during bug-bounty and penetration is marked as a critical vulnerability and It is the most prevalent and impactful vulnerability as per the OWASP "Top 10" list.Why need to learn OS command injection?Operating system (OS) command injection is one of the most common web application security vulnerabilities around. It allows a threat actor to run malicious shell commands by targeting an application weakness with improper input validation, such as a buffer overflow.What is the difference between Code Injection vs. Command Injection?Code injection is a generic term for any type of attack that involves an injection of code interpreted/executed by an application. This type of attack takes advantage of mishandling of untrusted data inputs. It is made possible by a lack of proper input/output data validation. On the other hand, Command injection typically involves executing commands in a system shell or other parts of the environment. The attacker extends the default functionality of a vulnerable application, causing it to pass commands to the system shell, without needing to inject malicious code. In many cases, command injection gives the attacker greater control over the target system.Types of OS command injection attacks>Arbitrary command injection>Insecure serialization>XML external entity injection (XXE)>Arbitrary file uploads/inclusion>Server-side template injection (SSTI)How to prevent OS command injectionAvoid system calls and user inputSet up input validationCreate a white listCreate a white lisUse execFile() securelyIf you wanna lean and make a careear as a Ethical hacker, jon with Us.
