Vulnerability Description
NextAuth.js is an open source authentication solution for Next.js applications. `next-auth` applications using OAuth provider versions before `v4.20.1` have been found to be subject to an authentication vulnerability. A bad actor who can read traffic on the victim's network or who is able to social engineer the victim to click a manipulated login link could intercept and tamper with the authorization URL to **log in as the victim**, bypassing the CSRF protection. This is due to a partial failure during a compromised OAuth session where a session code is erroneously generated. This issue has been addressed in version 4.20.1. Users are advised to upgrade. Users unable to upgrade may using Advanced Initialization, manually check the callback request for state, pkce, and nonce against the provider configuration to prevent this issue. See the linked GHSA for details.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextauth.Js | Next-Auth | < 4.20.1 |
Related Weaknesses (CWE)
References
- https://authjs.dev/reference/core/providers#checksProduct
- https://danielfett.de/2020/05/16/pkce-vs-nonce-equivalent-or-not/Not Applicable
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qfExploitVendor Advisory
- https://next-auth.js.org/configuration/initialization#advanced-initializationProduct
- https://next-auth.js.org/configuration/providers/oauthProduct
- https://security.netapp.com/advisory/ntap-20230420-0006/
- https://www.rfc-editor.org/rfc/rfc6749#section-10.12Not Applicable
- https://authjs.dev/reference/core/providers#checksProduct
- https://danielfett.de/2020/05/16/pkce-vs-nonce-equivalent-or-not/Not Applicable
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qfExploitVendor Advisory
- https://next-auth.js.org/configuration/initialization#advanced-initializationProduct
- https://next-auth.js.org/configuration/providers/oauthProduct
- https://security.netapp.com/advisory/ntap-20230420-0006/
- https://www.rfc-editor.org/rfc/rfc6749#section-10.12Not Applicable
FAQ
What is CVE-2023-27490?
CVE-2023-27490 is a vulnerability with a CVSS score of 8.1 (HIGH). NextAuth.js is an open source authentication solution for Next.js applications. `next-auth` applications using OAuth provider versions before `v4.20.1` have been found to be subject to an authenticati...
How severe is CVE-2023-27490?
CVE-2023-27490 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-27490?
Check the references section above for vendor advisories and patch information. Affected products include: Nextauth.Js Next-Auth.