[转]高级PHP应用程序漏洞审核技术
原文地址：http://code.google.com/p/pasc2at/wiki/SimplifiedChinese
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高级PHP应用程序漏洞审核技术
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高级PHP应用程序漏洞审核技术
- 前言
- 传统的代码审计技术
- PHP版本与应用代码审计
- 其他的因素与应用代码审计
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扩展我们的字典
- 变量本身的key
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变量覆盖
- 遍历初始化变量
- parse_str()变量覆盖漏洞
- import_request_variables()变量覆盖漏洞
- PHP5 Globals
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magic_quotes_gpc与代码安全
- 什么是magic_quotes_gpc
- 哪些地方没有魔术引号的保护
- 变量的编码与解码
- 二次攻击
- 魔术引号带来的新的安全问题
- 变量key与魔术引号
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代码注射
- PHP中可能导致代码注射的函数
- 变量函数与双引号
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PHP自身函数漏洞及缺陷
- PHP函数的溢出漏洞
- PHP函数的其他漏洞
- session_destroy()删除文件漏洞
- 随机函数
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特殊字符
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截断
- include截断
- 数据截断
- 文件操作里的特殊字符
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截断
- 怎么进一步寻找新的字典
- DEMO
- 后话
- 附录
How do you set the session cookie parameters in PHP?Apr 22, 2025 pm 05:33 PMSetting session cookie parameters in PHP can be achieved through the session_set_cookie_params() function. 1) Use this function to set parameters, such as expiration time, path, domain name, security flag, etc.; 2) Call session_start() to make the parameters take effect; 3) Dynamically adjust parameters according to needs, such as user login status; 4) Pay attention to setting secure and httponly flags to improve security.
What is the main purpose of using sessions in PHP?Apr 22, 2025 pm 05:25 PMThe main purpose of using sessions in PHP is to maintain the status of the user between different pages. 1) The session is started through the session_start() function, creating a unique session ID and storing it in the user cookie. 2) Session data is saved on the server, allowing data to be passed between different requests, such as login status and shopping cart content.
How can you share sessions across subdomains?Apr 22, 2025 pm 05:21 PMHow to share a session between subdomains? Implemented by setting session cookies for common domain names. 1. Set the domain of the session cookie to .example.com on the server side. 2. Choose the appropriate session storage method, such as memory, database or distributed cache. 3. Pass the session ID through cookies, and the server retrieves and updates the session data based on the ID.
How does using HTTPS affect session security?Apr 22, 2025 pm 05:13 PMHTTPS significantly improves the security of sessions by encrypting data transmission, preventing man-in-the-middle attacks and providing authentication. 1) Encrypted data transmission: HTTPS uses SSL/TLS protocol to encrypt data to ensure that the data is not stolen or tampered during transmission. 2) Prevent man-in-the-middle attacks: Through the SSL/TLS handshake process, the client verifies the server certificate to ensure the connection legitimacy. 3) Provide authentication: HTTPS ensures that the connection is a legitimate server and protects data integrity and confidentiality.
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.
PHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.
PHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
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