CVE-2022-35924

NextAuth.js is a complete open source authentication solution for Next.js applications. `next-auth` users who are using the `EmailProvider` either in versions before `4.10.3` or `3.29.10` are affected. If an attacker could forge a request that sent a comma-separated list of emails (eg.: `attacker@attacker.com,victim@victim.com`) to the sign-in endpoint, NextAuth.js would send emails to both the attacker and the victim's e-mail addresses. The attacker could then login as a newly created user with the email being `attacker@attacker.com,victim@victim.com`. This means that basic authorization like `email.endsWith("@victim.com")` in the `signIn` callback would fail to communicate a threat to the developer and would let the attacker bypass authorization, even with an `@attacker.com` address. This vulnerability has been patched in `v4.10.3` and `v3.29.10` by normalizing the email value that is sent to the sign-in endpoint before accessing it anywhere else. We also added a `normalizeIdentifier` callback on the `EmailProvider` configuration, where you can further tweak your requirements for what your system considers a valid e-mail address. (E.g.: strict RFC2821 compliance). Users are advised to upgrade. There are no known workarounds for this vulnerability. If for some reason you cannot upgrade, you can normalize the incoming request using Advanced Initialization.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://en.wikipedia.org/wiki/Email_address#Local-part	Third Party Advisory
https://github.com/nextauthjs/next-auth/commit/afb1fcdae3cc30445038ef588e491d139b916003	Patch Third Party Advisory
https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xv97-c62v-4587	Mitigation Third Party Advisory
https://next-auth.js.org/configuration/callbacks#sign-in-callback	Vendor Advisory
https://next-auth.js.org/configuration/initialization#advanced-initialization	Vendor Advisory
https://next-auth.js.org/providers/email	Vendor Advisory
https://next-auth.js.org/providers/email#normalizing-the-e-mail-address	Vendor Advisory
https://nodemailer.com/message/addresses	Third Party Advisory
https://en.wikipedia.org/wiki/Email_address#Local-part	Third Party Advisory
https://github.com/nextauthjs/next-auth/commit/afb1fcdae3cc30445038ef588e491d139b916003	Patch Third Party Advisory
https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xv97-c62v-4587	Mitigation Third Party Advisory
https://next-auth.js.org/configuration/callbacks#sign-in-callback	Vendor Advisory
https://next-auth.js.org/configuration/initialization#advanced-initialization	Vendor Advisory
https://next-auth.js.org/providers/email	Vendor Advisory
https://next-auth.js.org/providers/email#normalizing-the-e-mail-address	Vendor Advisory
https://nodemailer.com/message/addresses	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nextauth.js:next-auth::::::node.js::*
	cpe:2.3:a:nextauth.js:next-auth::::::node.js::*

History

21 Nov 2024, 07:11

Type	Values Removed	Values Added
References	~~() https://en.wikipedia.org/wiki/Email_address#Local-part - Third Party Advisory~~	() https://en.wikipedia.org/wiki/Email_address#Local-part - Third Party Advisory
References	~~() https://github.com/nextauthjs/next-auth/commit/afb1fcdae3cc30445038ef588e491d139b916003 - Patch, Third Party Advisory~~	() https://github.com/nextauthjs/next-auth/commit/afb1fcdae3cc30445038ef588e491d139b916003 - Patch, Third Party Advisory
References	~~() https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xv97-c62v-4587 - Mitigation, Third Party Advisory~~	() https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xv97-c62v-4587 - Mitigation, Third Party Advisory
References	~~() https://next-auth.js.org/configuration/callbacks#sign-in-callback - Vendor Advisory~~	() https://next-auth.js.org/configuration/callbacks#sign-in-callback - Vendor Advisory
References	~~() https://next-auth.js.org/configuration/initialization#advanced-initialization - Vendor Advisory~~	() https://next-auth.js.org/configuration/initialization#advanced-initialization - Vendor Advisory
References	~~() https://next-auth.js.org/providers/email - Vendor Advisory~~	() https://next-auth.js.org/providers/email - Vendor Advisory
References	~~() https://next-auth.js.org/providers/email#normalizing-the-e-mail-address - Vendor Advisory~~	() https://next-auth.js.org/providers/email#normalizing-the-e-mail-address - Vendor Advisory
References	~~() https://nodemailer.com/message/addresses - Third Party Advisory~~	() https://nodemailer.com/message/addresses - Third Party Advisory

Information

Published : 2022-08-02 18:15

Updated : 2024-11-21 07:11

NVD link : CVE-2022-35924

Mitre link : CVE-2022-35924

CVE.ORG link : CVE-2022-35924

JSON object : View

Products Affected

nextauth.js

next-auth

CWE

CWE-20

Improper Input Validation

CWE-863

Incorrect Authorization

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Esto significa que una autorizaci\u00f3n b\u00e1sica como \"email.endsWith(\"@v\u00edctima.com\")\" en la llamada de retorno \"signIn\" no comunicar\u00eda una amenaza al desarrollador y permitir\u00eda al atacante saltarse la autorizaci\u00f3n, incluso con una direcci\u00f3n \"@atacante.com\". Esta vulnerabilidad ha sido parcheada en versiones \"v4.10.3\" y \"v3.29.10\" al normalizar el valor del correo electr\u00f3nico que es enviado al punto final de inicio de sesi\u00f3n antes de acceder a \u00e9l en cualquier otro lugar. Tambi\u00e9n hemos a\u00f1adido una llamada de retorno \"normalizeIdentifier\" en la configuraci\u00f3n de \"EmailProvider\", donde puedes ajustar a\u00fan m\u00e1s tus requisitos para lo que tu sistema considera una direcci\u00f3n de correo electr\u00f3nico v\u00e1lida. (Por ejemplo: cumplimiento estricto del RFC2821). Es recomendado a usuarios actualizar. No se presentan mitigaciones conocidas para esta vulnerabilidad. 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9.1 /10