CTF [网络安全实验室] [基础关]
Posted 热绪
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基础关
1.key在哪里?
F12查看源码
2.再加密一次你就得到key了
加密之后的数据为xrlvf23xfqwsxsqf
我们在进行一次加密即可。
3.猜猜这是经过了多少次加密?
加密后的字符串:
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REZ3UlZWdGFGZGhNMEY0VmxaYWIyRXhaRWhUYTJSWVltdHdWMWxYZEdGaFJtdDVZek5vVjAxW
FVqQlphMXBQVlRKRmVsRnRPVmROVm5CVVZXcEtVbVZXVW5WVWJHaFlVakZLYjFaWGVHOVZNaz
VYWWtoT1YxWkZXbFJVVmxwSFRrWlplVTFVUW1oU2JIQXdWbGQwYzFkSFJuSk9WRTVYWVd0d1N
Ga3llRTlrUjBaSFkwZDRhRTFZUWpWV2JYQkRXVlpWZVZSdVRtcFNWMmhVV1d0Vk1XTkdXblJr
U0dSWFlrWnNORmRyVWtOWGJGbDRVbXBPVldKR2NISldNR1JMWXpGT2NrOVdaR2hOVm5CTlZqR
mFZVmxYVWtoV2ExcGhVbFJzVkZscmFFSmtNV1J6Vm0xR2FFMVdjRmxWTW5SaFlXeEtXR1ZIUm
xWV1JUVkVXbFphVjFJeFNsVmlSa1pXVmtSQk5RPT0=
base64密文,我们写python脚本进行解密。
# -*- codeing = utf-8 -*-
# @Time : 2021/5/4 9:47
# @Author : rexu
# @File : bs64.py
# @Software : PyCharm
import base64
f = open("1.txt","r")
a = f.read()
while 1:
a = base64.b64decode(a)
print(a)
得key
4.据说MD5加密很安全,真的是吗?
e0960851294d7b2253978ba858e24633
在线MD5加解密工具:https://www.cmd5.com/
5.种族歧视:小明同学今天访问了一个网站,竟然不允许中国人访问!太坑了,于是小明同学决心一定要进去一探究竟!
火狐访问,burp抓包
试着加了一个referer:Foreigner 发现不行;发现存在language,删除掉CN相关语言,放包。
6.HAHA浏览器
想到修改User-Agent
7.key究竟在哪里呢?
抓包重放发现了key。
8.key又找不到了。
两个跳转,分别抓包。
访问key_is_here_now_.php得到key
9.冒充登录用户:小明来到一个网站,还是想要key,但是却怎么都登陆不了,你能帮他登陆吗?
抓包发现,Cookie:Login=0 修改为1即可。
10.比较数字大小。
题目是一个数字输入框,限制数字长短,打开burp改参数为一个足够大的值即可。
11.本地的诱惑:小明扫描了他心爱的小红的电脑,发现开放了一个80端口,但是当小明去访问的时候却发现只允许从本地访问,可他心爱的小红不敢让这个诡异的小明触碰她的电脑,可小明真的想知道小红电脑的80端口到底隐藏着什么秘密(key)?
题目意思需要访问80端口。
emmm
12.就不让你访问:小明设计了一个网站,因为总是遭受黑客攻击后台,所以这次他把后台放到了一个无论是什么人都找不到的地方。
我在抓包修改参数无果后,开始访问robots.txt,果然。
访问:http://lab1.xseclab.com/base12_44f0d8a96eed21afdc4823a0bf1a316b/9fb97531fe95594603aff7e794ab2f5f/
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