CVE-2021-41106

JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\JWT\Signer\Key\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\JWT\Signer\Key\LocalFileReference`, and suggest `Lcobucci\JWT\Signer\Key\InMemory` as the alternative. As a workaround, use `Lcobucci\JWT\Signer\Key\InMemory` instead of `Lcobucci\JWT\Signer\Key\LocalFileReference` to create the instances of one's keys.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*
cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*
cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-09-28 21:15

Updated : 2024-02-28 18:48


NVD link : CVE-2021-41106

Mitre link : CVE-2021-41106

CVE.ORG link : CVE-2021-41106


JSON object : View

Products Affected

jwt_project

  • jwt
CWE
CWE-345

Insufficient Verification of Data Authenticity