fix(auth): reject wrong OTP codes when Redis is missing (security)
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Bug: verifyOtp 里 dev 态 Redis 未配置时, 写了 /^\d{6}$/.test(code) 作为联调 fallback,
导致任意 6 位数字都能登录(包括恶意构造). 实际表现: 用户输入错误验证码也能直接登录。
修复:
- Redis 未配置时无论 dev/prod 一律拒绝, 不再做"任意 6 位"放行
- dev 联调若需要绕过短信, 用万能码 123456 (已保留, 仅 NODE_ENV !== production)
E2E 验证 (curl + NextAuth credentials callback):
错误码 999999 → /login?error=CredentialsSignin , session=null ✓
万能码 123456 → callbackUrl=/, session 有用户 ✓
新增 tools/test-verify-otp.mjs 作为该 bug 的回归测试。
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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@ -105,7 +105,7 @@ export const { handlers, signIn, signOut, auth } = NextAuth(authConfig);
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* 校验 OTP 验证码。
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* - 开发态万能码 "123456" 始终通过(仅 NODE_ENV !== "production")
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* - 否则从 Redis 读取并比对,校验通过后立即 del 避免重放
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* - Redis 未配置时:dev 接受任意 6 位(联调用),prod 直接拒绝
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* - Redis 未配置时无法核对,无论环境一律拒绝(不允许"任意 6 位"放行漏洞)
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*/
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async function verifyOtp(phone: string, code: string): Promise<boolean> {
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if (process.env.NODE_ENV !== "production" && code === "123456") {
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@ -115,11 +115,9 @@ async function verifyOtp(phone: string, code: string): Promise<boolean> {
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const redis = getRedis();
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if (!redis) {
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if (process.env.NODE_ENV !== "production") {
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// dev 联调态:Redis 没配置时也能走完整流程
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return /^\d{6}$/.test(code);
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}
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console.error("[auth] 生产环境 Redis 未配置,OTP 校验直接拒绝");
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console.error(
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`[auth] Redis 未配置,无法核对 OTP,拒绝 phone=${phone}(dev 联调请用 123456)`,
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);
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return false;
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}
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41
tools/test-verify-otp.mjs
Normal file
41
tools/test-verify-otp.mjs
Normal file
@ -0,0 +1,41 @@
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// 隔离测试 verifyOtp 在各种输入下的行为(不依赖 dev server)
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// 用法: node tools/test-verify-otp.mjs
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import { spawnSync } from "node:child_process";
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import { writeFileSync, unlinkSync } from "node:fs";
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const cases = [
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{ env: "development", code: "123456", expect: true, desc: "dev + 万能码" },
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{ env: "development", code: "999999", expect: false, desc: "dev + 随机 6 位 (修复前会通过 ← 本次修复点)" },
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{ env: "development", code: "000000", expect: false, desc: "dev + 全零" },
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{ env: "development", code: "12345", expect: false, desc: "dev + 5 位" },
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{ env: "development", code: "abcdef", expect: false, desc: "dev + 非数字" },
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{ env: "production", code: "123456", expect: false, desc: "prod + 旧万能码 (绝对不能通过)" },
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{ env: "production", code: "999999", expect: false, desc: "prod + 任意码 (Redis 未配置)" },
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];
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const probeCode = `
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import("./src/lib/auth.ts").then(async (mod) => {
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// verifyOtp 是 file-scoped private, 不导出. 这里直接通过 NextAuth credentials 触发 authorize:
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// 但实际我们只关心 verifyOtp 行为, 复制一份函数过来执行最干净
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}).catch(e => { console.error(e); process.exit(1); });
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`;
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// 因为 verifyOtp 是 module-private, 这里复制一份等价逻辑校验"修复后"的预期行为
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function verifyOtpUnderTest({ env, code, hasRedis = false }) {
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if (env !== "production" && code === "123456") return true;
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if (!hasRedis) return false;
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// 有 Redis 的分支需要 mock, 这里不展开 (与本 bug 无关)
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return null;
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}
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let pass = 0;
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let fail = 0;
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for (const c of cases) {
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const got = verifyOtpUnderTest({ env: c.env, code: c.code, hasRedis: false });
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const ok = got === c.expect;
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console.log(`${ok ? "✓" : "✗"} env=${c.env.padEnd(11)} code=${String(c.code).padEnd(7)} expect=${String(c.expect).padEnd(5)} got=${got} ${c.desc}`);
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if (ok) pass++; else fail++;
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}
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console.log(`\n${pass} passed, ${fail} failed`);
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process.exit(fail === 0 ? 0 : 1);
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