GHSA-jfxm-w8g2-4rcv
Cisco node-jose improper validation of JWT signature
Quick fix
GHSA-jfxm-w8g2-4rcv — node-jose: upgrade to the fixed version with the command below.
npm install node-jose@0.11.0Details
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.
Are you affected?
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Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-0114[ADVISORY]
- https://github.com/cisco/node-jose[PACKAGE]
- https://github.com/cisco/node-jose/blob/master/CHANGELOG.md[WEB]
- https://github.com/zi0Black/POC-CVE-2018-0114[WEB]
- https://tools.cisco.com/security/center/viewAlert.x?alertId=56326[WEB]
- https://web.archive.org/web/20210124130907/http://www.securityfocus.com/bid/102445[WEB]
- https://www.exploit-db.com/exploits/44324[WEB]