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CVE-2018-1000539

Estado: ModificadaMedia (5.3)—

Nov json-jwt version >= 0.5.0 && < 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Json-jwt Project — Json-jwt

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-1000539",
  "cveTags": [],
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
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  "affected": [
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  "published": "2018-06-26T16:29:02.163",
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      "value": "Nov json-jwt version >= 0.5.0 && < 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later."
    },
    {
      "lang": "es",
      "value": "Nov json-jwt, en versiones 0.5.0 hasta la 1.9.4 contiene una vulnerabilidad CWE-347: verificación incorrecta de firmas criptográficas en el descifrado de tokens web JSON cifrados por AES-GCM que puede resultar en que un atacante falsifique una etiqueta de autenticación. Este ataque parece ser explotable mediante conectividad de red. La vulnerabilidad parece haber sido solucionada en las versiones 1.9.4 y siguientes."
    }
  ],
  "lastModified": "2026-06-17T01:32:52.310",
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