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๐ŸดCTF/Lord of SQLinjection

Lord of SQLinjection - troll

by Janger 2021. 12. 7.
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์ด๋ฌธ์ œ์—์„œ admin์„ ํ•„ํ„ฐ๋งํ•˜๋Š” ์ € ๋ถ€๋ถ„ "/admin/", id๋กœ admin์„ ๋„˜๊ฒจ์ฃผ๋ฉด HeHe๊ฐ€ ๋œจ๊ฒŒ ๋จ 

ํ•˜์ง€๋งŒ admin์ด ์•„๋‹ˆ๋ผ Admin์„ ๋ณด๋‚ด์ฃผ๋ฉด? 

 

 

ํด๋ฆฌ์–ด๊ฐ€ ๋จ 

์–ด์งธ์„œ admin์€ ์•ˆ๋˜๊ณ  Admin์€ ๊ฐ€๋Šฅํ•œ ๊ฑธ๊นŒ 

 

์šฐ์„  "/admin/" ํ•„ํ„ฐ๋ง์„ ์šฐํšŒํ•  ์ˆ˜ ์žˆ์—ˆ๋˜ ์ด์œ ๋Š” ๋ฐ”๋กœ ์†Œ๋ฌธ์ž๊ฐ€ ์•„๋‹Œ ๋Œ€๋ฌธ์ž๋กœ ์ž…๋ ฅ์„ ํ–ˆ๊ธฐ ๋•Œ๋ฌธ์— ๊ฐ€๋ณ๊ฒŒ ํŒจ์Šค๊ฐ€ ๊ฐ€๋Šฅํ•œ ๊ฒƒ์ด๋ฉฐ, ๋งŒ์•ฝ ๋Œ€์†Œ๋ฌธ์ž๋ฅผ ๋ฌด์‹œํ•˜๊ณ  ์‹ถ๋‹ค๋ฉด ๋’ค์— i๋ฅผ ๋ถ™์ด๋ฉด ๋œ๋‹ค. '/admin/i' <- ์ด๋Ÿฐ ์‹์œผ๋กœ 

 

๊ทธ๋ฆฌ๊ณ  ๋ฌด์—‡๋ณด๋‹ค๋„ mysql์€ ๋Œ€์†Œ๋ฌธ์ž๋ฅผ ๊ฐ€๋ฆฌ์ง€ ์•Š๊ณ  ์›ํ•˜๋Š” ๊ฒฐ๊ณผ๋ฅผ ์ฐพ์•„์ฃผ๊ธฐ ๋•Œ๋ฌธ์— ์„ฑ๊ณต์ด ๊ฐ€๋Šฅํ–ˆ๋˜ ๊ฒƒ.

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