vercel next.js up to 14.2.14 improper authorization

Summaryinfo

A vulnerability classified as critical has been found in vercel next.js up to 14.2.14. This affects an unknown function. The manipulation leads to improper authorization. This vulnerability is documented as CVE-2024-51479. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in vercel next.js up to 14.2.14. It has been rated as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

Next.js is a React framework for building full-stack web applications. In affected versions if a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed for pages directly under the application's root directory. For example: * [Not affected] `https://example.com/` * [Affected] `https://example.com/foo` * [Not affected] `https://example.com/foo/bar`. This issue is patched in Next.js `14.2.15` and later. If your Next.js application is hosted on Vercel, this vulnerability has been automatically mitigated, regardless of Next.js version. There are no official workarounds for this vulnerability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-51479 since 10/28/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 14.2.15 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• JavaScript Library

Vendor

• vercel

Name

• next.js

Version

• 14.2.0
• 14.2.1
• 14.2.2
• 14.2.3
• 14.2.4
• 14.2.5
• 14.2.6
• 14.2.7
• 14.2.8
• 14.2.9
• 14.2.10
• 14.2.11
• 14.2.12
• 14.2.13
• 14.2.14

Website

• Product: https://github.com/vercel/next.js/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion