FKIE_CVE-2023-51774

Vulnerability from fkie_nvd - Published: 2024-02-29 01:42 - Updated: 2026-06-17 06:41
Severity
8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.
References
cve@mitre.orghttps://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.mdExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.mdExploit, Third Party Advisory
Impacted products
Vendor Product Version
json-jwt_project json-jwt 1.16.3
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:json-jwt_project:json-jwt:*:*:*:*:*:ruby:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "json-jwt",
          "vendor": "json-jwt_project",
          "versions": [
            {
              "status": "affected",
              "version": "1.16.3"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:json-jwt_project:json-jwt:1.16.3:*:*:*:*:ruby:*:*",
              "matchCriteriaId": "10C65505-66B5-4A0F-98A7-D06B425FB9F4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode."
    },
    {
      "lang": "es",
      "value": "La gema json-jwt (tambi\u00e9n conocida como JSON::JWT) 1.16.3 para Ruby a veces permite eludir los controles de identidad mediante un ataque de confusi\u00f3n de signo/cifrado. Por ejemplo, a veces se puede utilizar JWE para omitir JSON::JWT.decode."
    }
  ],
  "id": "CVE-2023-51774",
  "lastModified": "2026-06-17T06:41:38.193",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-51774",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-26T20:08:13.723369Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-29T01:42:05.597",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.md"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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