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GitHubpandora-research/cve-2018-0114-exploit

CVE-2018-0114-Exploit

Exploit for CVE-2018-0114: re-signs JWT tokens by embedding an attacker-controlled public key in the JWS header, bypassing authentication in vulnerable Cisco node-jose library versions.

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24 years agoNot yet reviewed

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CVE-2018-0114-Exploit

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.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0114

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