漏洞信息
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Vulnerability Title
Better Auth: Rate limiter keys IPv6 addresses individually and is bypassable via prefix rotation
Vulnerability Description
Better Auth is an authentication and authorization library for TypeScript. Prior to 1.4.17 and 1.5.0-beta.9, Better Auth's HTTP rate limiter keyed each request by the exact textual IP address it received in x-forwarded-for (or the configured IP-bearing header). IPv6 clients controlling a typical /64 allocation could rotate through 2^64 distinct source addresses without exhausting the per-address counter, defeating rate limiting on /sign-in/email, /sign-up/email, /forget-password, and every other path the limiter protects. The same bug allowed a single client to vary the textual encoding of one IPv6 address (uppercase, compression, IPv4-mapped, hex-encoded IPv4-in-IPv6) and produce multiple distinct keys. This vulnerability is fixed in 1.4.17 and 1.5.0-beta.9.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Vulnerability Type
过多认证尝试的限制不恰当
Vulnerability Title
Better Auth 安全漏洞
Vulnerability Description
Better Auth是Better Auth开源的一个 TypeScript 最全面的身份验证框架。 Better Auth 1.4.17和1.5.0-beta.9之前版本存在安全漏洞,该漏洞源于HTTP速率限制器按x-forwarded-for中的确切文本IP地址键控每个请求,IPv6客户端可轮换2^64个不同源地址或改变IPv6地址的文本编码来绕过速率限制。
CVSS Information
N/A
Vulnerability Type
N/A