漏洞信息
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Vulnerability Title
NextAuth.js: Email normalizer validates the address before Unicode normalization, allowing a homoglyph @ bypass
Vulnerability Description
NextAuth.js provides authentication for Next.js. Prior to @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, the defaultNormalizer used by the email and magic-link sign-in flow validates an address before applying Unicode normalization. An address can contain a Unicode character such as U+FF20 FULLWIDTH COMMERCIAL AT that is not ASCII at-sign but canonicalizes to an ASCII at-sign under NFKC or NFKD normalization. The address passes the normalizer's single-at-sign check, but a downstream sendVerificationRequest mail library or delivery service that normalizes the address can then see two at-sign separators and deliver the passwordless sign-in link to an attacker-controlled recipient. Applications are affected when the email provider uses the built-in normalizer rather than a custom normalizeIdentifier and the downstream sender applies Unicode normalization. An attacker who knows a victim's email address can request the misrouted magic link and sign in as the victim without victim interaction. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
不正确的行为次序:规范化之前验证
Vulnerability Title
Auth.js 处理逻辑错误漏洞
Vulnerability Description
Auth.js是Auth.js组织的一款身份验证开发框架。 Auth.js 0.41.3之前版本、next-auth 4.24.15之前版本和5.0.0-beta.32之前版本存在处理逻辑错误漏洞,该漏洞源于默认规范化器在Unicode规范化之前验证地址,包含全角@的地址通过单个@检查后,被下游邮件服务标准化为两个@分隔符,导致无密码登录链接被发送给攻击者控制的收件人,攻击者可在无受害者交互的情况下请求该链接并以受害者身份登录。
CVSS Information
N/A
Vulnerability Type
N/A