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์ง€์‹์„ ์ฑ„์›Œ๊ฐ€๋Š” ใ€Ž๊ฐœ๋ฐœ์ž/ํ™”์ดํŠธํ•ด์ปคใ€๋ฅผ ๋ชฉํ‘œ๋กœ ์ •๋ฆฌํ•˜๋Š” ๋ธ”๋กœ๊ทธ

๋ชจ์˜ ํ•ดํ‚น ์Šคํ„ฐ๋””/๋ชจ์˜ ํ•ดํ‚น Tip

์ฆ์  ์‚ฌ์ง„ ๊ด€๋ฆฌ

Gearvirus(junyup2) 2024. 2. 29. 22:37

์ฆ์  ์‚ฌ์ง„ ๊ด€๋ฆฌ

์ฆ์  ์‚ฌ์ง„์ด๋ž€ ์ฆ๊ฑฐ ์‚ฌ์ง„์œผ๋กœ์„œ, ์ทจ์•ฝ์ ์ด ๋‚˜์™”๋‹ค๋Š” ๊ฒƒ์„ ๋ณด์—ฌ์ฃผ๋Š” ์บก์ณ ์‚ฌ์ง„์„ ์˜๋ฏธํ•œ๋‹ค.

๋ชจ์˜ํ•ดํ‚น์„ ์ง„ํ–‰ํ•จ์— ์žˆ์–ด, ์ทจ์•ฝ์ ์ด ๋ฐœ๊ฒฌ๋˜๋ฉด ๊ทธ๋•Œ ๊ทธ๋•Œ ์บก์ณํ•˜์—ฌ ๋ณด๊ด€ํ•ด์•ผ ํ•œ๋‹ค๋Š” ๊ฒƒ์ด๋‹ค. ๊ทธ๋ ‡์ง€ ์•Š์œผ๋ฉด ์ถ”ํ›„์— ๋ณด๊ณ ์„œ๋ฅผ ์“ฐ๊ธฐ ์œ„ํ•ด์„œ ์บก์ณ ์‚ฌ์ง„์ด ํ•„์š”๋กœ ๋  ๋•Œ์—, ๋‹ค์‹œ ์ฐพ์•„๋“ค์–ด๊ฐ€์•ผํ•˜๋Š” ๋ถˆํŽธํ•จ์ด ์žˆ์„ ์ˆ˜๋„ ์žˆ๊ณ , ๊ทธ๊ฒƒ์ด ํž˜๋“ค ์ˆ˜๋„ ์žˆ๊ธฐ ๋•Œ๋ฌธ์ด๋‹ค.

์ฆ์  ์‚ฌ์ง„ vs ๋ณด๊ณ ์„œ์šฉ ์‚ฌ์ง„

์ฆ์  ์‚ฌ์ง„๊ณผ ๋ณด๊ณ ์„œ์šฉ ์‚ฌ์ง„์€ ๊ตฌ๋ถ„์ด ํ•„์š”ํ•˜๋‹ค.

์ฆ์  ์‚ฌ์ง„ ํด๋”๋ฅผ ๋”ฐ๋กœ์ด ๋งŒ๋“ค๊ณ , ๋ชจ์˜ ํ•ดํ‚น ๊ณผ์ •์—์„œ ํ•„์š”๋กœ ํ•˜๋Š” ์บก์ณ ์‚ฌ์ง„์„ ๋ณด๊ด€ํ•ด์•ผํ•œ๋‹ค. ์ฆ์  ์‚ฌ์ง„์˜ ๊ฒฝ์šฐ ๋ถ€๋ถ„์„ ์บก์ณํ•˜๋Š” ๊ฒƒ์ด ์•„๋‹Œ ์ฆ๊ฑฐ๋กœ์„œ ๋‚จ์•„์•ผ ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์ „์ฒด๊ฐ€ ๋‚˜์˜ค๋„๋ก ์บก์ณํ•ด์•ผํ•œ๋‹ค.

๋ณด๊ณ ์„œ์šฉ ์‚ฌ์ง„์˜ ๊ฒฝ์šฐ ๋ณด๊ณ ์„œ ์ž‘์„ฑ ์‹œ์— ์ฆ์  ์‚ฌ์ง„ ํด๋”๋ฅผ ๊ทธ๋Œ€๋กœ ๋ณต์‚ฌํ•˜์—ฌ ๋ณด๊ณ ์„œ์šฉ์œผ๋กœ ๋ฐ”๊ฟ”์ค€๋‹ค.

์ฆ์  ์‚ฌ์ง„ ํด๋”๋Š” ์ ˆ๋Œ€ ๊ฑด๋“ค์—ฌ์„œ๋Š” ์•ˆ๋˜๊ณ , ์›๋ณธ์„ ์œ ์ง€ํ•ด์•ผํ•œ๋‹ค.

์ฆ์  ์‚ฌ์ง„

์ฆ์  ์‚ฌ์ง„ ํด๋”์˜ ๊ตฌ์กฐ

์ฆ์  ์‚ฌ์ง„ ํด๋”
- ๋„๋ฉ”์ธ
-- ์ทจ์•ฝ์  ์ข…๋ฅ˜
--- ์ทจ์•ฝ์  ์„ค๋ช….txt
--- ๊ธฐ๋Šฅ๋ณ„ ๋ถ„๋ฅ˜

์ฆ์ ์‚ฌ์ง„ ํด๋”์— ๋„๋ฉ”์ธ ๋ณ„๋กœ ๋ถ„๋ฅ˜๋ฅผ ํ•˜๊ณ , ์ทจ์•ฝ์  ๋งˆ๋‹ค ํด๋”๋ฅผ ๋งŒ๋“ค์–ด ๋ณด๊ด€ํ•˜๋„๋ก ํ•˜๋ฉฐ, ํ•ด๋‹น ์ทจ์•ฝ์ ์— ๋Œ€ํ•œ ์„ค๋ช…์„ ๊ฐ„๋‹จํžˆ ์ ์–ด๋‘์–ด, ๋ณด๊ณ ์„œ ์“ฐ๋Š”๋ฐ์— ์šฉ์ดํ•˜๋„๋ก ํ•œ๋‹ค.

๊ทธ ์˜ˆ์‹œ๋ฅผ ๋“ค๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค.

ex)
-- SQL Injection
---์ทจ์•ฝ์  ์„ค๋ช….txt.
--- ๊ฒŒ์‹œํŒ ๊ฒ€์ƒ‰ ๊ธฐ๋Šฅ
--- ID ์ค‘๋ณต ์ฒดํฌ

-- XSS
--- ์ทจ์•ฝ์  ์„ค๋ช….txt
--- Reflected XSS
---- ๊ฒŒ์‹œํŒ ๊ฒ€์ƒ‰ ๊ธฐ๋Šฅ
--- Stored XSS

์ทจ์•ฝ์  ์„ค๋ช…์—๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ฒƒ๋“ค์„ ์ •๋ฆฌํ•˜๋ฉด ๋œ๋‹ค.

์ทจ์•ฝ์  ์„ค๋ช….txt
- ์ทจ์•ฝ์  ์„ค๋ช…
- ์ทจ์•ฝ์  ๋ฐœ์ƒ ๊ฒฝ๋กœ (URL, ํŒŒ๋ผ๋ฏธํ„ฐ)
- ์ทจ์•ฝ์  ๋ฐœ์ƒ ์œ„์น˜ (๋“ค์–ด๊ฐ€๋Š” ๋ฐฉ๋ฒ•)

์ฆ์  ์‚ฌ์ง„์˜ ๊ฒฝ์šฐ ๋ฐ˜๋“œ์‹œ ํ•ด์•ผํ•œ๋‹ค! ๋ผ๋Š” ๊ฒƒ์€ ์•„๋‹ˆ์ง€๋งŒ, ์—…๋ฌด์˜ ํšจ์œจ์ƒ, ๊ทธ๋ฆฌ๊ณ  ์ถ”ํ›„์— ๋ณด๊ณ ์„œ ์ •๋ฆฌ์— ๋„์›€์ด ๋œ๋‹ค๋Š” ์ธก๋ฉด์—์„œ ๊ฐ€๋Šฅํ•˜๋ฉด ์ง€ํ‚ค๋Š” ๊ฒƒ์ด ์ข‹์„ ๊ฒƒ ๊ฐ™์€ ๋ชจ์˜ํ•ดํ‚น Tip์ด์˜€๋‹ค.


์งˆ๋ฌธ ํ™˜์˜, ์ˆ˜์ • ๋ฐ ๋ณด์™„์— ๋Œ€ํ•œ ์ง€์  ํ™˜์˜