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.
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Mon, 02 Dec 2024 21:15:00 +0000
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-12-02T20:58:29.226Z
Reserved: 2017-11-27T00:00:00
Link: CVE-2018-0114
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Updated: 2024-08-05T03:14:16.809Z
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Status : Modified
Published: 2018-01-04T06:29:00.417
Modified: 2024-11-21T03:37:32.987
Link: CVE-2018-0114
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