ghsa-jfxm-w8g2-4rcv
Vulnerability from github
Published
2022-05-13 01:17
Modified
2023-10-06 00:56
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Cisco node-jose improper validation of JWT signature
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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "node-jose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-0114"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-20T18:45:54Z",
    "nvd_published_at": "2018-01-04T06:29:00Z",
    "severity": "HIGH"
  },
  "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.",
  "id": "GHSA-jfxm-w8g2-4rcv",
  "modified": "2023-10-06T00:56:10Z",
  "published": "2022-05-13T01:17:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0114"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cisco/node-jose"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cisco/node-jose/blob/master/CHANGELOG.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zi0Black/POC-CVE-2018-0114"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/viewAlert.x?alertId=56326"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20210124130907/http://www.securityfocus.com/bid/102445"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/44324"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cisco node-jose improper validation of JWT signature"
}


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