eval sandbox

Potential risks of eval in Python Eval is a built-in function used by Python to execute python expressions. Using eval, you can easily dynamically execute strings. For example, the following code:>>> Eval ("1 + 2 ")>>> Eval ("[x for x in range (10)]"

From a linguistic point of view, allowing code to use global variables in an uncontrolled manner is one of the most wrong choices. What is more frightening is that a variable "may" become global (at unknown time and place). But these two, along with

Document directory Problem Restrictions Solution Problem My goal is very simple, that is, to use code written by others in my own system, but this Code may pollute global variables or even be malicious and destructive. I want to ensure that the

　 Last weekend, the Association of students to Tianjin exchange, Tianjin University students told a python sandbox escape case. Write a summary of what you've learned and how you played today.　Case 1　This is a question for HACKUCTF 2012. 1. def

0x01 question raisedRemember the last time I took Webshell's hole (how to write a backdoor without numbers and letters in PHP), we talked about some of the tricks of PHP that cleverly bypassed numbers and letters, What I'm going to share with you

EVAL script Numkeys key [key ...] arg [arg ...] Starting with the Redis 2.6.0 release, the LUA script can be evaluated using the EVAL command with the built-in LUA interpreter.The script parameter is a LUA 5.1 script that runs in the Redis server

Security work has always been a concern in our daily development. For Web development, JavaScript security is a major concern. JavaScript is a scripting language that can run in a variety of browsers, but based on security considerations, almost all

Execute arbitrary code in the Jinja2 template using the Python feature Whether the Jinja2 template engine can directly execute the original command in SSTI is not described, and it is also described in the official Jinja2 documentation that the

Execute arbitrary code in the Jinja2 template using the Python feature This article originated from the blog Injecting Flask published by @ nvisium on the blog. In the original article, the author explains how to use the Python template engine Jinja2

  [Directory] I. background and description 2. What is Cloud 3. What is cloud security? 4. How to Design cloud security 5. An authorized security evaluation test for SAE   I. background and description   Due to slow access to foreign servers and