CVE Tools

CVE-2022-23539

jsonwebtoken unrestricted key type could lead to legacy keys usage

Published: Dec 22, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-327
5.9CVSSMEDIUM

Description

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. You are affected if you are using an algorithm and a key type other than a combination listed in the GitHub Security Advisory as unaffected. This issue has been fixed, please 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.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:LI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:NAvailability
None

Weaknesses

Affected Products

auth0commercialSecurity Productsaka auth0.js, nextjs-auth0, login by auth0
npmpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
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References

and 3 more references View all →

Timeline

Published
Dec 22, 2022
Last Updated
Nov 21, 2024

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