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5 changes: 5 additions & 0 deletions .jules/sentinel.md
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Expand Up @@ -83,3 +83,8 @@
**Vulnerability:** ์ •์  HTML ์ƒ์„ฑ ๋„๊ตฌ์—์„œ ๋งค๋ฒˆ ๋‹ค๋ฅธ Nonce๋ฅผ ๋™์ ์œผ๋กœ ์ƒ์„ฑํ•˜์—ฌ CSP์— ์ ์šฉํ•˜๋Š” ๊ฒƒ์€, ์บ์‹ฑ ํšจ์œจ์„ ์ €ํ•˜์‹œํ‚ฌ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ์ •์  ๋ฐฐํฌ ํ™˜๊ฒฝ(์˜ˆ: GitHub Pages ๋“ฑ)์—์„œ ์˜ฌ๋ฐ”๋ฅธ ๋ณด์•ˆ ์ •์ฑ… ์ˆ˜๋ฆฝ์„ ๋ฐฉํ•ดํ•  ์ˆ˜ ์žˆ๋Š” ์•ˆํ‹ฐ ํŒจํ„ด์ž…๋‹ˆ๋‹ค.
**Learning:** ์ •์ ์œผ๋กœ ๊ณ ์ •๋œ ์ธ๋ผ์ธ ์Šคํƒ€์ผ์ด๋‚˜ ์Šคํฌ๋ฆฝํŠธ์—๋Š” ๋‚œ์ˆ˜ํ™”๋œ Nonce๋ณด๋‹ค ์ฝ˜ํ…์ธ  ์ž์ฒด์˜ ํ•ด์‹œ(SHA-256 ๋“ฑ)๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ด ์•ˆ์ „ํ•˜๊ณ  ์ผ๊ด€๋œ ๋ฐฉ์‹์ž„์„ ๋ฐฐ์› ์Šต๋‹ˆ๋‹ค.
**Prevention:** ์ž๋™ ์ƒ์„ฑ๋˜๋Š” ์ •์  HTML์˜ ์ฝ˜ํ…์ธ  ๋ณด์•ˆ ์ •์ฑ…(CSP)์—๋Š” `style-src 'sha256-<HASH>'` ๋ฐฉ์‹์„ ์ ์šฉํ•˜๊ณ , `<style>` ํƒœ๊ทธ์—์„œ ๋ถˆํ•„์š”ํ•œ `nonce` ์†์„ฑ์„ ์ œ๊ฑฐํ•˜์—ฌ ๋ธŒ๋ผ์šฐ์ €์˜ ๋ฌด๊ฒฐ์„ฑ ๊ฒ€์ฆ ๊ธฐ๋Šฅ์„ ์ ๊ทน ํ™œ์šฉํ•˜์‹ญ์‹œ์˜ค.

## 2024-05-24 - [Information Exposure ๋ฐฉ์ง€๋ฅผ ์œ„ํ•œ ๊ฒ€์ƒ‰ ์—”์ง„ ์ธ๋ฑ์‹ฑ ์ œํ•œ]
**Vulnerability:** ๊ณต๊ฐœ์ ์œผ๋กœ ํ˜ธ์ŠคํŒ…๋  ๊ฐ€๋Šฅ์„ฑ์ด ์žˆ๋Š” ๋””๋ ‰ํ† ๋ฆฌ ์ธ๋ฑ์‹ฑ HTML ํŽ˜์ด์ง€์— ๊ฒ€์ƒ‰ ์—”์ง„ ํฌ๋กค๋Ÿฌ๋ฅผ ์ œ์–ดํ•˜๋Š” ๋ณด์•ˆ ํ—ค๋”/๋ฉ”ํƒ€ ํƒœ๊ทธ๊ฐ€ ๋ˆ„๋ฝ๋˜์–ด ๋ฏผ๊ฐํ•œ ํŒŒ์ผ ๊ฒฝ๋กœ ๋ฐ ์ •๋ณด๊ฐ€ ๋ฌด๋ถ„๋ณ„ํ•˜๊ฒŒ ๋…ธ์ถœ๋  ์œ„ํ—˜์ด ์กด์žฌํ•จ.
**Learning:** ์›น ์„œ๋ฒ„ ์„ค์ •์— ์˜์กดํ•˜์ง€ ์•Š๊ณ  ์ƒ์„ฑ๋˜๋Š” ์ •์  HTML ์ž์ฒด์— ๊ธฐ๋ณธ์ ์ธ ๋ฐฉ์–ด ๊ธฐ์ œ(defense in depth)๋ฅผ ๋งˆ๋ จํ•ด์•ผ ํ•จ.
**Prevention:** ๋ชจ๋“  ์ƒ์„ฑ๋˜๋Š” HTML `<head>`์— `<meta name="robots" content="noindex, nofollow">`๋ฅผ ์ถ”๊ฐ€ํ•˜์—ฌ, ์šฐ๋ฐœ์ ์ธ ํผ๋ธ”๋ฆญ ์ ‘๊ทผ ์‹œ์—๋„ ๊ฒ€์ƒ‰ ์—”์ง„ ์ธ๋ฑ์‹ฑ์„ ํ†ตํ•œ Information Exposure๋ฅผ ๋ฐฉ์ง€ํ•จ.
2 changes: 2 additions & 0 deletions src/main/kotlin/html4tree/main.kt
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Expand Up @@ -327,6 +327,8 @@ ${cssContent} </style>
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src '${styleHash}'; base-uri 'none'; form-action 'none';">
<!-- ๋ณด์•ˆ ํ–ฅ์ƒ: ๋ฆฌํผ๋Ÿฌ๋ฅผ ํ†ตํ•œ ๋””๋ ‰ํ† ๋ฆฌ ๊ฒฝ๋กœ ๋…ธ์ถœ ๋ฐฉ์ง€ -->
<meta name="referrer" content="no-referrer">
<!-- ๋ณด์•ˆ ํ–ฅ์ƒ: ๊ฒ€์ƒ‰ ์—”์ง„ ์ธ๋ฑ์‹ฑ ๋ฐฉ์ง€ (Information Exposure ๋ฐฉ์ง€) -->
<meta name="robots" content="noindex, nofollow">
<title>${curr_dir.getName().escapeHtml()}</title>
${css}
</head>
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1 change: 1 addition & 0 deletions src/test/kotlin/html4tree/MainTest.kt
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Expand Up @@ -309,6 +309,7 @@ class MainTest {
val htmlContent = indexFile.readText()
assertTrue(htmlContent.contains("<html lang=\"ko\">"))
assertTrue(htmlContent.contains("<meta name=\"color-scheme\" content=\"light dark\">"))
assertTrue(htmlContent.contains("<meta name=\"robots\" content=\"noindex, nofollow\">"))
assertTrue(htmlContent.contains("<nav aria-label=\"๋””๋ ‰ํ† ๋ฆฌ ๋ชฉ๋ก\">"))
assertTrue(htmlContent.contains("role=\"list\""))
assertTrue(htmlContent.contains("<main>"))
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