Use of a Broken or Risky Cryptographic Algorithm Affecting jsonwebtoken package, versions <9.0.0
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Test your applications- Snyk ID SNYK-JS-JSONWEBTOKEN-3180026
- published 22 Dec 2022
- disclosed 22 Dec 2022
- credit Unknown
Introduced: 22 Dec 2022
CVE-2022-23539 Open this link in a new tabHow to fix?
Upgrade jsonwebtoken to version 9.0.0 or higher.
Overview
jsonwebtoken is a JSON Web Token implementation (symmetric and asymmetric)
Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm such that the library can be misconfigured to use legacy, insecure key types for signature verification. For example, DSA keys could be used with the RS256 algorithm.
Exploitability
Users are affected when using an algorithm and a key type other than the combinations mentioned below:
EC: ES256, ES384, ES512
RSA: RS256, RS384, RS512, PS256, PS384, PS512
RSA-PSS: PS256, PS384, PS512
And for Elliptic Curve algorithms:
ES256: prime256v1
ES384: secp384r1
ES512: secp521r1
Workaround
Users who are unable to upgrade to the fixed version can use the allowInvalidAsymmetricKeyTypes option to true in the sign() and verify() functions to continue usage of invalid key type/algorithm combination in 9.0.0 for legacy compatibility.