Elliptic Curve Key Disclosure Affecting com.nimbusds:nimbus-jose-jwt package, versions [,4.34.2)
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Test your applications- Snyk ID SNYK-JAVA-COMNIMBUSDS-30205
- published 14 Mar 2017
- disclosed 13 Mar 2017
- credit Antonio Sanso, Quan Nguyan
How to fix?
Upgrade com.nimbusds:nimbus-jose-jwt to version 4.34.2 or higher.
Overview
com.nimbusds:nimbus-jose-jwt is a library for JSON Web Tokens (JWT)
Affected versions of this package are vulnerable to Elliptic Curve Key Disclosure. A JSON Web Token (JWT) defines a container that transports data between two parties. When a JWT is signed with a private key by one of the parties, it's known as a JSON Web Signature (JWS).
The "JWK" (JSON Web Key) is a JSON based open standard used for creating access tokens. JWK's Header Parameter allows it to include the public key that corresponds to the key used to sign the JWS. If the Header Parameter includes this public key, an attacker could then use it to generate a private key / public key pair, send the public key together with the signature and the signature will be valid.
This vulnerability is related to SNYK-JAVA-ORGBITBUCKETBC-30206 and npm:node-jose:20170313