CVE-2023-27490
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-352 · Cross-site request forgery
- Record status
- Modified
Affected
- nextauth.js next-auth < 4.20.1
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-27490.md and follow it. Check whether this project is affected by CVE-2023-27490. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qf
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qf
References
- https://authjs.dev/reference/core/providers#checks
- https://danielfett.de/2020/05/16/pkce-vs-nonce-equivalent-or-not/
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qf
- https://next-auth.js.org/configuration/initialization#advanced-initialization
- https://next-auth.js.org/configuration/providers/oauth
- https://security.netapp.com/advisory/ntap-20230420-0006/
- https://www.rfc-editor.org/rfc/rfc6749#section-10.12
- https://authjs.dev/reference/core/providers#checks
- https://danielfett.de/2020/05/16/pkce-vs-nonce-equivalent-or-not/
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-7r7x-4c4q-c4qf
- https://next-auth.js.org/configuration/initialization#advanced-initialization
- https://next-auth.js.org/configuration/providers/oauth
- https://security.netapp.com/advisory/ntap-20230420-0006/
- https://www.rfc-editor.org/rfc/rfc6749#section-10.12