Home php教程 php手册 php包含远程文件的解释和用法

php包含远程文件的解释和用法

Jun 06, 2016 pm 07:46 PM
linux php Include document usage explain Enter Remotely

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 php中包含远程文件allow_url_include的解释和用法: PHP常常因为它可能允许URLS被导入和执行语句被人们指责。事实上,这件事情并不是很让人感到惊奇,因为这是导致称为Remote URL Include vulnerabil

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  php中包含远程文件allow_url_include的解释和用法:

  PHP常常因为它可能允许URLS被导入和执行语句被人们指责。事实上,这件事情并不是很让人感到惊奇,因为这是导致称为Remote URL Include vulnerabilities的php应用程序漏洞的最重要的原因之一。

  因为这个原因,许多安全研究人员建议在php.ini配置中禁用指向allow_url_fopen。不幸的是,许多推荐这种方法的人,并没有意识到,这样会破坏很多的应用并且并不能保证100%的解决remote URL includes以及他带来的不安全性。

  通常,用户要求在他们使用其他的文件系统函数的时候,php允许禁止URL包含和请求声明支持。

  因为这个原因,计划在PHP6中提供allow_url_include。在这些讨论之后,这些特性在php5.2.0 中被backported。现在大多数的安全研究人员已经改变了他们的建议,只建议人们禁止allow_url_include。

  不幸的是,allow_url_fopen和allow_url_include并不是导致问题的原因。一方面来说在应用中包含本地文件仍然是一件足够危险的事情,因为攻击者经常通过sessiondata, fileupload, logfiles,...等方法获取php代码………

  另一方面allow_url_fopen和allow_url_include只是保护了against URL handles标记为URL.这影响了http(s) and ftp(s)但是并没有影响php或date(new in php5.2.0) urls.这些url形式,都可以非常简单的进行php代码注入。

  例1: Use php://input to read the POST data

  

  // Insecure Include

  // The following Include statement will

  // include and execute everything POSTed

  // to the server

  include "php://input";

  ?>

php包含远程文件的解释和用法

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

deepseek web version entrance deepseek official website entrance deepseek web version entrance deepseek official website entrance Feb 19, 2025 pm 04:54 PM

DeepSeek is a powerful intelligent search and analysis tool that provides two access methods: web version and official website. The web version is convenient and efficient, and can be used without installation; the official website provides comprehensive product information, download resources and support services. Whether individuals or corporate users, they can easily obtain and analyze massive data through DeepSeek to improve work efficiency, assist decision-making and promote innovation.

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

How to install deepseek How to install deepseek Feb 19, 2025 pm 05:48 PM

There are many ways to install DeepSeek, including: compile from source (for experienced developers) using precompiled packages (for Windows users) using Docker containers (for most convenient, no need to worry about compatibility) No matter which method you choose, Please read the official documents carefully and prepare them fully to avoid unnecessary trouble.

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Ouyi okx installation package is directly included Ouyi okx installation package is directly included Feb 21, 2025 pm 08:00 PM

Ouyi OKX, the world's leading digital asset exchange, has now launched an official installation package to provide a safe and convenient trading experience. The OKX installation package of Ouyi does not need to be accessed through a browser. It can directly install independent applications on the device, creating a stable and efficient trading platform for users. The installation process is simple and easy to understand. Users only need to download the latest version of the installation package and follow the prompts to complete the installation step by step.

BITGet official website installation (2025 beginner's guide) BITGet official website installation (2025 beginner's guide) Feb 21, 2025 pm 08:42 PM

BITGet is a cryptocurrency exchange that provides a variety of trading services including spot trading, contract trading and derivatives. Founded in 2018, the exchange is headquartered in Singapore and is committed to providing users with a safe and reliable trading platform. BITGet offers a variety of trading pairs, including BTC/USDT, ETH/USDT and XRP/USDT. Additionally, the exchange has a reputation for security and liquidity and offers a variety of features such as premium order types, leveraged trading and 24/7 customer support.

See all articles