漏洞信息
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Vulnerability Title
Monkeytype: Rate-limit and anti-brute-force controls bypassable via spoofed HTTP headers (forgotPasswordEmail/verificationEmail mail bombing and badAuth bypass)
Vulnerability Description
Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived req.ip value. An unauthenticated attacker can rotate either header to create a new bucket for each request, bypassing rootRateLimiter, badAuthRateLimiter, getKey(), and the getKeyWithUid() fallback used by public endpoints. This permits repeated POST /users/forgotPasswordEmail and verificationEmail requests, mail bombing registered users, consuming Firebase or SMTP quota, evading brute-force protection, and enabling resource exhaustion. Exploitability of cf-connecting-ip depends on deployment topology, but x-forwarded-for and direct-to-origin paths remain affected when those values are not overwritten by a trusted proxy. No fixed version is available as of this review.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
使用欺骗进行的认证绕过
Vulnerability Title
Monkeytype 授权问题漏洞
Vulnerability Description
Monkeytype是Monkeytype组织的一款在线打字测试与练习软件。 Monkeytype 26.26.0及之前版本存在安全漏洞,该漏洞源于后端速率限制密钥生成器使用客户端可控的cf-connecting-ip和x-forwarded-for请求头,可能导致未经身份验证的攻击者绕过速率限制,进行邮件轰炸、消耗配额、逃避暴力破解保护及造成资源耗尽。
CVSS Information
N/A
Vulnerability Type
N/A