A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2018-01-04T06:00:00
Updated: 2024-08-05T03:14:16.809Z
Reserved: 2017-11-27T00:00:00
Link: CVE-2018-0114
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2018-01-04T06:29:00.417
Modified: 2020-09-04T16:58:50.880
Link: CVE-2018-0114
Redhat
No data.