PicoCTF-2019-WirteUp

古城微笑少年丶 2023-06-16 10:35 82阅读 0赞

> **1. 2Warm-General Skills**

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直接将十进制转化为二进制

picoCTF\{101010\}

> **2. Insp3ct0r-Web Exploitation**

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*[https://2019shell1.picoctf.com/problem/63975/][https_2019shell1.picoctf.com_problem_63975]*

点击链接看到如下页面

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点击What没有变化，点击How出现如下页面

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说明是分别从HTML,CSS,JavaScript中找flag

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右键查看源代码可见三分之一的HTML部分flag

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再点击mycss.css有

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点击myjs.js有

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三部分flag整合在一起即为完整flag

> **3. Lets Warm Up-General Skills**

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0x70即十六进制70，转化为ASCII码为p,故picoCTF\{p\}

> **4. The Numbers-Cryptography**

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点击numbers得到图片文件

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看上去是要解码的亚子，搜了一些常见的解码形式，插文https://www.cnblogs.com/mq0036/p/6544055.html。这一题全部都是数字，在线工具试一下，啥也出不来...后来看看这个格式，emmmmm,好像是picoCTF\{\}鸭，于是数自己就代表几号字母.......![format_png 12][]

于是提交答案picoCTF\{THENUMBERSMASON\},提交后发现不对？！![format_png 12][]

试了好多好多好多遍...点开Hint,原来这一题的flag格式不一样啊哈![format_png 13][]

> **5. Warmed Up-General Skills**

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过！picoCTF\{61\}

> **6. unzip-Forensics**

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点击file下载后得到图片文件

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即flag，这一题的本意是看我能不能解压这个文件结果电脑自动就给解压了....

> **7. Bases-General Skills**

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题目暗示很明显了，就是bases编码

所以就在线工具转化，base64解码

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> **8. First Grep-General Skills**

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下载文件后打开即得flag

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picoCTF\{grep\_is\_good\_to\_find\_things\_887251c6\}

> **9.Resources-General Skills**

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[https://picoctf.com/resources][https_picoctf.com_resources]

这一题就是指示了解网站的，下拉即可看见flag

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> **10. dont-use-client-side-Web Exploitation**

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[https://2019shell1.picoctf.com/problem/21888/][https_2019shell1.picoctf.com_problem_21888]

点击Link有，是一个登陆界面，我们就要弄清楚什么时候密码正确

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查看源码有

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点开index.html有

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按照截取顺序把flag可拼凑出来

picoCTF\{no\_clients\_plz\_5 6a8eb\}

> **11. where are the robots-Web Exploitation**

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[https://2019shell1.picoctf.com/problem/4159/][https_2019shell1.picoctf.com_problem_4159]

和robots协议有关，于是访问robots.txt有

![format_png 29][]

不让访问某个网址，那就访问看看

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得flag

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[https_2019shell1.picoctf.com_problem_63975]: https://2019shell1.picoctf.com/problem/63975/
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[https_picoctf.com_resources]: https://picoctf.com/resources
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[https_2019shell1.picoctf.com_problem_21888]: https://2019shell1.picoctf.com/problem/21888/
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[https_2019shell1.picoctf.com_problem_4159]: https://2019shell1.picoctf.com/problem/4159/
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