漏洞信息
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Vulnerability Title
Better Auth: Account takeover via OAuth auto-link to unverified pre-registered email
Vulnerability Description
Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, Better Auth's OAuth callback auto-link gate in handleOAuthUserInfo accepts implicit account linking when the OAuth provider asserts email_verified: true without requiring the local user row's emailVerified field to also be true, allowing an attacker who pre-registers a victim email through /sign-up/email to bind the victim's OAuth identity to the attacker's account. The same primitive affects one-tap, and emailAndPassword.requireEmailVerification: true does not mitigate the link-time verification change. This issue is fixed in version 1.6.11.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Vulnerability Type
认证机制不恰当
Vulnerability Title
Better Auth 授权问题漏洞
Vulnerability Description
better-auth better-auth是better-auth的防病毒反病毒产品。 Better Auth 1.6.11之前版本存在安全漏洞,该漏洞源于OAuth回调自动链接门在handleOAuthUserInfo中接受隐式账户链接,当OAuth提供者断言email_verified为true时,无需本地用户行的emailVerified字段也为true,允许攻击者通过/sign-up/email预先注册受害者电子邮件,将受害者的OAuth身份绑定到攻击者的账户。
CVSS Information
N/A
Vulnerability Type
N/A