CVE-2022-23539 – jsonwebtoken

Package

Manager: npm
Name: jsonwebtoken
Vulnerable Version: >=0 <9.0.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00058 pctl0.18165

Details

jsonwebtoken unrestricted key type could lead to legacy keys usage # Overview Versions `<=8.5.1` of `jsonwebtoken` library could be misconfigured so that legacy, insecure key types are used for signature verification. For example, DSA keys could be used with the RS256 algorithm. # Am I affected? You are affected if you are using an algorithm and a key type other than the combinations mentioned below | Key type | algorithm | |----------|------------------------------------------| | ec | ES256, ES384, ES512 | | rsa | RS256, RS384, RS512, PS256, PS384, PS512 | | rsa-pss | PS256, PS384, PS512 | And for Elliptic Curve algorithms: | `alg` | Curve | |-------|------------| | ES256 | prime256v1 | | ES384 | secp384r1 | | ES512 | secp521r1 | # How do I fix it? Update to version 9.0.0. This version validates for asymmetric key type and algorithm combinations. Please refer to the above mentioned algorithm / key type combinations for the valid secure configuration. After updating to version 9.0.0, If you still intend to continue with signing or verifying tokens using invalid key type/algorithm value combinations, you’ll need to set the `allowInvalidAsymmetricKeyTypes` option to `true` in the `sign()` and/or `verify()` functions. # Will the fix impact my users? There will be no impact, if you update to version 9.0.0 and you already use a valid secure combination of key type and algorithm. Otherwise, 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.

Metadata

Created: 2022-12-22T03:32:22Z
Modified: 2024-06-24T21:23:38Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-8cf7-32gw-wr33/GHSA-8cf7-32gw-wr33.json
CWE IDs: ["CWE-327"]
Alternative ID: GHSA-8cf7-32gw-wr33
Finding: F052
Auto approve: 1