> For the complete documentation index, see [llms.txt](https://gitbook-88.gitbook.io/ctf-writeup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-88.gitbook.io/ctf-writeup/2020.md).

# 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)