Home Backend Development PHP Tutorial 安恒429|复赛 web write up && 决赛经验

安恒429|复赛 web write up && 决赛经验

Jun 20, 2016 pm 12:30 PM

由于已经没有复赛的环境,只能文字回忆一下了

复赛给了web 2 350 原本是想考一个SSRF利用gopher去搞定一个fastcgi的外联端口,执行命令

具体的文章

http://zone.wooyun.org/content/1060

http://drops.wooyun.org/web/9845

然而出题人没把好关 长亭3分钟秒掉这道题后基本就猜到有奇解

那么其实就是简单的file协议 file://index.php 拿到了flag

然后一开始卡住的web 1 300呢,是通过注册超长字符串的用户,重复注册爆出dumplicate entry

得到管理员的hash admin_7365598732 24461a3ef270c652949f5fc37f37fcb2

解密后得到RGoN7r}G8lnrYBAX6n

登陆管理页,有一个删除文件的功能,传递的id参数可以用报错注入payload

+and(select+1+from(select+count(*),concat((select+table_name+from+information_schema.tables+limit+0,1),floor(rand(0)*2))x+from+information_schema.tables+group+by+x)a)%23
Copy after login

得到flag,然后居然还是一血。大概因为注起来很麻烦吧。

凭借着自己拿下的650+d神的500以及外校队友拿下的密码学题目 7th进入决赛。

===========================================================================

帅不过三秒 下午决赛开始被血虐

送走大寸自己稍微有点小低落,然后就被抓了先手

web我一开始没审计代码的时候,发现了至少3个点

这里用黑名单进行过滤,导致php5等后缀可以绕过

另外就是前台文章的一个root注入点

然而修复的时候使用的正则表达式/select.*from/i

算是最大的败笔,没有加s修饰符的话,用%0a是可以绕过的。

在注入的时候into outfile一直会把前面的用户数据读进去,一开始想的方法是

用户名注册为 然后导出

得到了wildwolf的webshell。但后来由于插内存马的时候报错,导致整个数据废掉了。

后来用union select来覆盖前面的数据,重新导出了,但是于事无补,自己也只拿到了200多分。

期间pwn和web服务一直被人打挂掉,导致了巨额失分。

最后今天回来的时候重新写了一份php的自动化防护脚本,希望以后攻防赛有机会用上

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
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks 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)

11 Best PHP URL Shortener Scripts (Free and Premium) 11 Best PHP URL Shortener Scripts (Free and Premium) Mar 03, 2025 am 10:49 AM

Long URLs, often cluttered with keywords and tracking parameters, can deter visitors. A URL shortening script offers a solution, creating concise links ideal for social media and other platforms. These scripts are valuable for individual websites a

Introduction to the Instagram API Introduction to the Instagram API Mar 02, 2025 am 09:32 AM

Following its high-profile acquisition by Facebook in 2012, Instagram adopted two sets of APIs for third-party use. These are the Instagram Graph API and the Instagram Basic Display API.As a developer building an app that requires information from a

Working with Flash Session Data in Laravel Working with Flash Session Data in Laravel Mar 12, 2025 pm 05:08 PM

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

Build a React App With a Laravel Back End: Part 2, React Build a React App With a Laravel Back End: Part 2, React Mar 04, 2025 am 09:33 AM

This is the second and final part of the series on building a React application with a Laravel back-end. In the first part of the series, we created a RESTful API using Laravel for a basic product-listing application. In this tutorial, we will be dev

Simplified HTTP Response Mocking in Laravel Tests Simplified HTTP Response Mocking in Laravel Tests Mar 12, 2025 pm 05:09 PM

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

cURL in PHP: How to Use the PHP cURL Extension in REST APIs cURL in PHP: How to Use the PHP cURL Extension in REST APIs Mar 14, 2025 am 11:42 AM

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

12 Best PHP Chat Scripts on CodeCanyon 12 Best PHP Chat Scripts on CodeCanyon Mar 13, 2025 pm 12:08 PM

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Announcement of 2025 PHP Situation Survey Announcement of 2025 PHP Situation Survey Mar 03, 2025 pm 04:20 PM

The 2025 PHP Landscape Survey investigates current PHP development trends. It explores framework usage, deployment methods, and challenges, aiming to provide insights for developers and businesses. The survey anticipates growth in modern PHP versio

See all articles