# 2020

- [2020 CTFShow 36D杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei.md)
- [签到](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei/qian-dao.md)
- [rsaEZ](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei/rsaez.md)
- [justShow](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei/justshow.md)
- [2020 GKCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gkctf.md)
- [Check\_In](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gkctf/check_in.md)
- [cve版签到](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gkctf/cve-ban-qian-dao.md)
- [老八小超市儿](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gkctf/lao-ba-xiao-chao-shi-er.md)
- [2020 CISCN](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn.md)
- [easyphp](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn/easyphp.md)
- [easytrick](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn/easytrick.md)
- [rceme](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn/rceme.md)
- [babyunserialize](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn/babyunserialize.md)
- [littlegame](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ciscn/littlegame.md)
- [2020 羊城杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-yang-cheng-bei.md)
- [easycon](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-yang-cheng-bei/easycon.md)
- [BlackCat](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-yang-cheng-bei/blackcat.md)
- [easyphp](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-yang-cheng-bei/easyphp.md)
- [2020 ACTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-actf.md)
- [Include](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-actf/include.md)
- [BackupFile](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-actf/backupfile.md)
- [Exec](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-actf/exec.md)
- [2020 CTFShow 月饼杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-yue-bing-bei.md)
- [此夜圆](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-yue-bing-bei/ci-ye-yuan.md)
- [故人心](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-yue-bing-bei/gu-ren-xin.md)
- [莫负婵娟](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-yue-bing-bei/mo-fu-chan-juan.md)
- [2020 西湖论剑](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-xi-hu-lun-jian.md)
- [easyjson](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-xi-hu-lun-jian/easyjson.md)
- [newupload](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-xi-hu-lun-jian/newupload.md)
- [2020 CTFShow 1024杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-1024-bei.md)
- [fastapi](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-1024-bei/fastapi.md)
- [2020 太湖杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-tai-hu-bei.md)
- [checkInGame](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-tai-hu-bei/checkingame.md)
- [easyWeb](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-tai-hu-bei/easyweb.md)
- [ezMd5](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-tai-hu-bei/ezmd5.md)
- [CrossFire](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-tai-hu-bei/crossfire.md)
- [2020 ByteCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bytectf.md)
- [Check-In](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bytectf/check-in.md)
- [2020 BJDCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf.md)
- [Easy MD5](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/easy-md5.md)
- [The mystery of ip](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/the-mystery-of-ip.md)
- [ZJCTF，不过如此](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/zjctf-bu-guo-ru-ci.md)
- [假猪套天下第一](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/jia-zhu-tao-tian-xia-di-yi.md)
- [简单注入](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/jian-dan-zhu-ru.md)
- [EasySearch](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/easysearch.md)
- [EzPHP](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf/ezphp.md)
- [2020 网鼎杯](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei.md)
- [\[朱雀组\]Think Java](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/zhu-que-zu-think-java.md)
- [\[青龙组\]filejava](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/qing-long-zu-filejava.md)
- [\[青龙组\]AreUSerialz](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/qing-long-zu-areuserialz.md)
- [\[朱雀组\]phpweb](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/zhu-que-zu-phpweb.md)
- [\[白虎组\]PicDown](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/bai-hu-zu-picdown.md)
- [\[朱雀组\]Nmap](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wang-ding-bei/zhu-que-zu-nmap.md)
- [2020 MRCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf.md)
- [你传你🐎呢](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf/ni-chuan-ni-ne.md)
- [Ez\_bypass](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf/ez_bypass.md)
- [PYWebsite](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf/pywebsite.md)
- [Ezpop](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf/ezpop.md)
- [套娃](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-mrctf/tao-wa.md)
- [2020 GYCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gyctf.md)
- [Blacklist](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gyctf/blacklist.md)
- [FlaskApp](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gyctf/flaskapp.md)
- [Ezsqli](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-gyctf/ezsqli.md)
- [2020 BJDCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf-1.md)
- [old-hack](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-bjdctf-1/old-hack.md)
- [2020 WUSTCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wustctf.md)
- [朴实无华](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wustctf/pu-shi-wu-hua.md)
- [颜值成绩查询](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wustctf/yan-zhi-cheng-ji-cha-xun.md)
- [CV Maker](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-wustctf/cv-maker.md)
- [2020 NPUCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-npuctf.md)
- [ReadlezPHP](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-npuctf/readlezphp.md)
- [ezinclude](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-npuctf/ezinclude.md)
- [2020 Zer0pts](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-zer0pts.md)
- [Can you guess it?](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-zer0pts/can-you-guess-it.md)
- [2020 HFCTF](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-hfctf.md)
- [EasyLogin](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-hfctf/easylogin.md)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://gitbook-88.gitbook.io/ctf-writeup/2020.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
