CVE-2018-0131

{
  "id": "CVE-2018-0131",
  "cveTags": [],
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          "id": "CVE-2018-0131",
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-11-25T18:48:49.758425Z"
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        "source": "nvd@nist.gov",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "integrityImpact": "NONE",
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          "attackComplexity": "HIGH",
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          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
        "exploitabilityScore": 2.2
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  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco Systems, Inc.",
          "product": "IOS and IOS XE",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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  "published": "2018-08-14T16:29:00.223",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/105074",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
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    {
      "url": "http://www.securitytracker.com/id/1041539",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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      "source": "psirt@cisco.com"
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    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180813-rsa-nonce",
      "tags": [
        "Vendor Advisory"
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      "source": "psirt@cisco.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180813-rsa-nonce",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the implementation of RSA-encrypted nonces in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to obtain the encrypted nonces of an Internet Key Exchange Version 1 (IKEv1) session. The vulnerability exists because the affected software responds incorrectly to decryption failures. An attacker could exploit this vulnerability sending crafted ciphertexts to a device configured with IKEv1 that uses RSA-encrypted nonces. A successful exploit could allow the attacker to obtain the encrypted nonces. Cisco Bug IDs: CSCve77140."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la implementación de nonces cifrados por RSA en Cisco IOS Software y Cisco IOS XE Software podría permitir que un atacante remoto no autenticado obtenga los nonces cifrados de una sesión IKE v1(Internet Key Exchange Version 1). La vulnerabilidad existe debido a que el software afectado responde incorrectamente a los errores de descifrado. Un atacante podría explotar esta vulnerabilidad para enviar textos cifrados manipulados a u dispositivo configurado con IKEv1 que emplea nonces cifrados por RSA. Su explotación con éxito podría permitir que el atacante obtenga los nonces cifrados. Cisco Bug IDs: CSCve77140."
    }
  ],
  "lastModified": "2026-06-17T01:29:41.897",
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    {
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  "sourceIdentifier": "psirt@cisco.com"
}