{
  "id": "CVE-2020-14968",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-06-22T12:15:10.227",
  "lastModified": "2023-01-27T20:52:36.693",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the jsrsasign package before 8.0.17 for Node.js. Its RSASSA-PSS (RSA-PSS) implementation does not detect signature manipulation/modification by prepending '\\0' bytes to a signature (it accepts these modified signatures as valid). An attacker can abuse this behavior in an application by creating multiple valid signatures where only one signature should exist. Also, an attacker might prepend these bytes with the goal of triggering memory corruption issues."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en el paquete jsrsasign versiones anteriores a 8.0.17 para Node.js. La implementaci\u00f3n de RSASSA-PSS (RSA-PSS) no detecta la manipulaci\u00f3n y modificaci\u00f3n de firma al anteponer bytes \"\\0\" a una firma (acepta estas firmas modificadas como v\u00e1lidas). Un atacante puede abusar de este comportamiento en una aplicaci\u00f3n al crear m\u00faltiples firmas v\u00e1lidas donde solo debe existir una firma. Adem\u00e1s, un atacante podr\u00eda anteponer estos bytes con el objetivo de desencadenar problemas de corrupci\u00f3n de la memoria"
    }
  ],
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        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
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        "exploitabilityScore": 3.9,
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "value": "CWE-119"
        }
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  "references": [
    {
      "url": "https://github.com/kjur/jsrsasign/issues/438",
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}