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๐Ÿ›ก๏ธ Sentinel: [CRITICAL] Fix DSN Redaction Bypass via Scheme Underscore Parsing#462

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๐Ÿ›ก๏ธ Sentinel: [CRITICAL] Fix DSN Redaction Bypass via Scheme Underscore Parsing#462
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fix/dsn-redaction-underscore-scheme-11608441098688614900

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๐Ÿšจ Severity: CRITICAL
๐Ÿ’ก Vulnerability: urllib.parse.urlsplit ํ•จ์ˆ˜๊ฐ€ ์Šคํ‚ด์— ์–ธ๋”์Šค์ฝ”์–ด(_)๊ฐ€ ํฌํ•จ๋œ DSN์„ ์ฒ˜๋ฆฌํ•  ๋•Œ ํŒŒ์‹ฑ์— ์‹คํŒจํ•˜์—ฌ DSN Redaction ๋กœ์ง์ด ์ธ์ฆ ์ •๋ณด(๋น„๋ฐ€๋ฒˆํ˜ธ ๋“ฑ)๋ฅผ ์ œ๋Œ€๋กœ ์ถ”์ถœํ•˜์ง€ ๋ชปํ•˜๋Š” ์ทจ์•ฝ์ (DSN Redaction Bypass)์„ ๋ฐœ๊ฒฌํ–ˆ์Šต๋‹ˆ๋‹ค.
๐ŸŽฏ Impact: ์ž˜๋ชป๋œ ์Šคํ‚ด์„ ๊ฐ€์ง„ DSN์„ ์‚ฌ์šฉํ•  ๊ฒฝ์šฐ, ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์—ฐ๊ฒฐ ์‹คํŒจ ์‹œ ๋กœ๊ทธ์™€ ์—๋Ÿฌ ๋ฉ”์‹œ์ง€์— ํ‰๋ฌธ ํŒจ์Šค์›Œ๋“œ๊ฐ€ ๋งˆ์Šคํ‚น๋˜์ง€ ์•Š๊ณ  ๊ทธ๋Œ€๋กœ ๋…ธ์ถœ๋  ์œ„ํ—˜์ด ์žˆ์Šต๋‹ˆ๋‹ค.
๐Ÿ”ง Fix: ๋น„๋ฐ€๋ฒˆํ˜ธ ์ถ”์ถœ ๋‹จ๊ณ„ ์ „์— DSN์„ ์ž„์‹œ๋กœ ์ •๊ทœํ™”(_๋ฅผ -๋กœ ๋ณ€๊ฒฝ)ํ•˜๋Š” _normalize_dsn_for_parsing ํ—ฌํผ ํ•จ์ˆ˜๋ฅผ ์ถ”๊ฐ€ํ•˜์—ฌ ํŒŒ์„œ๊ฐ€ ์ •์ƒ์ ์œผ๋กœ ์ž๊ฒฉ ์ฆ๋ช…์„ ์ถ”์ถœํ•˜๊ณ  ๋งˆ์Šคํ‚นํ•  ์ˆ˜ ์žˆ๋„๋ก ์ˆ˜์ •ํ–ˆ์Šต๋‹ˆ๋‹ค.
โœ… Verification: backend/tests/test_dsn_redaction.py๋ฅผ ์ƒˆ๋กœ ์ถ”๊ฐ€ํ•˜์—ฌ 100% ํ…Œ์ŠคํŠธ ์ปค๋ฒ„๋ฆฌ์ง€๋ฅผ ์ž‘์„ฑํ•˜์˜€์œผ๋ฉฐ, pytest๋ฅผ ํ†ตํ•œ ์„ฑ๊ณต์ ์ธ ํ†ต๊ณผ๋ฅผ ํ™•์ธํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ด€๋ จ ๋‚ด์šฉ์€ .jules/sentinel.md ์ €๋„์— ๊ธฐ๋กํ–ˆ์Šต๋‹ˆ๋‹ค.


PR created automatically by Jules for task 11608441098688614900 started by @seonghobae

DSN ์Šคํ‚ด์— ์–ธ๋”์Šค์ฝ”์–ด๊ฐ€ ํฌํ•จ๋œ ๊ฒฝ์šฐ `urllib.parse.urlsplit`์ด ์ด๋ฅผ ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ํŒŒ์‹ฑํ•˜์ง€ ๋ชปํ•˜๊ณ  ๋นˆ ์Šคํ‚ด์„ ๋ฐ˜ํ™˜ํ•˜์—ฌ, ๊ฒฐ๊ณผ์ ์œผ๋กœ DSN์—์„œ ์ธ์ฆ ์ •๋ณด(๋น„๋ฐ€๋ฒˆํ˜ธ ๋“ฑ)๋ฅผ ์ œ๋Œ€๋กœ ์ถ”์ถœํ•˜์ง€ ๋ชปํ•ด ์—๋Ÿฌ ๋ฉ”์‹œ์ง€ ์ƒ์— ๋ฏผ๊ฐ ์ •๋ณด๊ฐ€ ๊ทธ๋Œ€๋กœ ๋…ธ์ถœ๋˜๋Š” ์ทจ์•ฝ์ (DSN Redaction Bypass)์ด ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.

ํ•ด๋‹น ๋ฌธ์ œ๋ฅผ ๋ฐฉ์ง€ํ•˜๊ธฐ ์œ„ํ•ด ๋น„๋ฐ€๋ฒˆํ˜ธ ์ถ”์ถœ ๋‹จ๊ณ„์—์„œ ์Šคํ‚ด ๋‚ด ์–ธ๋”์Šค์ฝ”์–ด๋ฅผ ํ•˜์ดํ”ˆ์œผ๋กœ ์ •๊ทœํ™”ํ•˜๋Š” `_normalize_dsn_for_parsing` ๋กœ์ง์„ ์ถ”๊ฐ€ํ•˜๊ณ  100% ํ…Œ์ŠคํŠธ ์ปค๋ฒ„๋ฆฌ์ง€๋ฅผ ํ™•๋ณดํ–ˆ์Šต๋‹ˆ๋‹ค.
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