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1d0c5a36db
CodeQL js/incomplete-url-substring-sanitization, alerts #860 and #861: volcengineConsoleAutoLogin accepted any cookie whose `domain` merely *contained* "volcengine.com". That check is an authorization decision, not a string test. The console auto-login harvests `digest`, `AccountID`, `csrfToken` and `userInfo` out of the Playwright context and persists them as the operator's Volcengine credentials, so a cookie set by `volcengine.com.attacker.tld` — or `notvolcengine.com` — was captured and stored as a provider connection. Add `matchesCookieDomain()` (open-sse/utils/cookieDomain.ts): exact host or dot-boundary suffix, leading dots and case normalized on both sides, failing closed on an empty expected domain. Same shape as the existing `isAdobeCookieDomain` in adobeFireflyBrowserLogin.ts, which already got this right. While sweeping the class, inAppLoginService's cookie capture had the identical weakness — `c.domain.includes(domain.replace(/^\./, ""))` — with the identical consequence: a look-alike host's cookie stored as the operator's credential. CodeQL did not flag it because the expected domain comes from TOKEN_EXTRACTION_CONFIGS rather than a literal. Both callsites now share the helper. tests/unit/volcengine-cookie-domain-suffix.test.ts — 5 tests, red before the fix, covering the real domains, seven look-alikes, empty/missing input, and the config-supplied path. Co-authored-by: Xiangzhe <bakryun0718@proton.me>
35 lines
1.3 KiB
TypeScript
35 lines
1.3 KiB
TypeScript
/**
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* Cookie-domain matching for browser-driven credential capture.
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*
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* Every in-app / console login flow harvests cookies out of a Playwright
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* context and persists them as operator credentials, so "is this cookie from
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* the site I sent the browser to?" is an authorization decision. A substring
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* test is not one: `domain.includes("example.com")` also accepts
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* `example.com.attacker.tld` and `notexample.com`, which lets a look-alike host
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* hand us cookies we then store as the operator's real credentials
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* (CodeQL js/incomplete-url-substring-sanitization).
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*
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* A cookie domain is matched by exact host or dot-boundary suffix — nothing
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* else. Leading dots (the RFC 6265 "domain-matches any subdomain" spelling) and
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* case are normalized away on both sides.
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*/
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export function matchesCookieDomain(
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cookieDomain: string | undefined,
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expectedDomain: string | undefined
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): boolean {
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const expected = normalizeCookieDomain(expectedDomain);
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if (!expected) return false;
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const actual = normalizeCookieDomain(cookieDomain);
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if (!actual) return false;
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return actual === expected || actual.endsWith(`.${expected}`);
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}
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function normalizeCookieDomain(domain: string | undefined): string {
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return String(domain || "")
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.trim()
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.replace(/^\.+/, "")
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.toLowerCase();
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}
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