CVE-2018-0114

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    CVE-2018-0114

    Published: 4 Jan 2018Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: http://www.securityfocus.com/bid/102445, https://github.com/cisco/node-jose/blob/master/CHANGELOG.md, https://www.exploit-db.com/exploits/44324/, https://tools.cisco.com/security/center/viewAlert.x?alertId=56326, https://github.com/zi0Black/POC-CVE-2018-0114

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -f15bd4637c96a79e715ff90a5e479177fccb3d25

    Affected versions

    0.10.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2018-0114 | CVE-DB