The entire process of testing it against a 30 characters long string takes around ~52ms. $ time node -e '/A(B|C+)+D/.test("ACCCCCCCCCCCCCCCCCCCCCCCCCCCCX")'ġ.79s user 0.02s system 99% cpu 1.812 total It most cases, it doesn't take very long for a regex engine to find a match: $ time node -e '/A(B|C+)+D/.test("ACCCCCCCCCCCCCCCCCCCCCCCCCCCCD")'Ġ.04s user 0.01s system 95% cpu 0.052 total The expression would match inputs such as ABBD, ABCCCCD, ABCBCCCD and ACCCCCD
This regular expression accomplishes the following: Let’s take the following regular expression as an example: regex = /A(B|C+)+D/ Regular expressions are incredibly powerful, but they aren't very intuitive and can ultimately end up making it easy for attackers to take your site down. The Regular expression Denial of Service (ReDoS) is a type of Denial of Service attack. There are many types of DoS attacks, ranging from trying to clog the network pipes to the system by generating a large volume of traffic from many machines (a Distributed Denial of Service - DDoS - attack) to sending crafted requests that cause a system to crash or take a disproportional amount of time to process. Var attack_str = "\u001B["+ " ".repeat(i* 10000) Ĭonsole.log( "attack_str.length: " + attack_str.length + ": " + time_cost+ " ms")ĭenial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its original and legitimate users.
The app comes with an organized user interface and proves to be quite intuitive to use.Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) due to the sub-patterns ()# ?]* and PoC import ansiRegex from 'ansi-regex'
Sqlectron create a new database manual#
To conclude, Sqlectron offers you the possibility to connect to numerous SQL servers with minimal effort and run manual queries in no time. Simple yet efficient solution for accessing SQL databases The utility aims to provide a clean and organized graphical user interface for connecting and extracting information from your SQL databases in no time. Sqlectron will display the results in the bottom area of its main window. Moreover, Sqlectron comes with an editor where you can manually input database query commands and execute them in no time. Once connected to a server, Sqlectron will display the database structure and enable you to use a simple search tool to find certain categories. Connect to the SQL database and quickly execute queries If you decide to employ an SSH Tunnel, Sqlectron allows you to provide the SSH address and port, the user credentials, and the private key.
Sqlectron create a new database password#
When you set up a new connection, Sqlectron allows you to specify the client you want to use (MySQL or PostgreSQL), the server address and port, the Unix socket path, the username and password used to connect, and the database name. In the Sqlectron server view, you can see the name, server address, and port for each connection. Within the Sqlectron main window, you get to search for a particular database, or simply add a new server address to your collection. Store database details and connect to SQL servers with a simple mouse click At the moment, Sqlectron is able to work with the MySQL and PostgreSQL clients, and you can input credentials for multiple connections. Sqlectron is a macOS desktop client app designed to connect to SQL databases and allow you to run queries in no time.
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