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[email protected]CVE-2018-0114

HistoryJan 04, 2018 - 6:29 a.m.

CVE-2018-0114

2018-01-0406:29:00

CWE-347

[email protected]

web.nvd.nist.gov

cisco

vulnerability

node-jose

remote attacker

token re-signing

json web tokens

jwts

nvd

cve-2018-0114

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

0.024 Low

EPSS

Percentile

90.0%

JSON

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.

Affected configurations

NVD

Node

cisconode-joseRange<0.11.0

CPENameOperatorVersion
cisco:node-josecisco node-joselt0.11.0

CPE	Name	Operator	Version
cisco:node-jose	cisco node-jose	lt	0.11.0

CNA Affected

[
  {
    "product": "Node-jose Library",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Node-jose Library"
      }
    ]
  }
]