fkie_cve-2020-27124
Vulnerability from fkie_nvd
Published
2024-11-18 16:15
Modified
2025-08-01 18:43
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the SSL/TLS handler of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition. The vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
References
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEyVendor Advisory
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4CtqNot Applicable
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3Not Applicable
Impacted products
Vendor Product Version
cisco adaptive_security_appliance_software 9.13.1.12
cisco adaptive_security_appliance_software 9.13.1.13
cisco adaptive_security_appliance_software 9.14.1.10


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:9.13.1.12:*:*:*:*:*:*:*",
              "matchCriteriaId": "40145CFB-CEE8-4ABA-A9C2-BA262B7A9AEC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:9.13.1.13:*:*:*:*:*:*:*",
              "matchCriteriaId": "23C82327-5362-4876-8058-EB51030CD5DD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.10:*:*:*:*:*:*:*",
              "matchCriteriaId": "F4187EFE-4D7E-4493-A6E0-24C98256CF79",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the SSL/TLS handler of Cisco\u0026nbsp;Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition.\r\nThe vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el controlador SSL/TLS del software Cisco Adaptive Security Appliance (ASA) podr\u00eda permitir que un atacante remoto no autenticado haga que el dispositivo afectado se recargue inesperadamente, lo que genera una condici\u00f3n de denegaci\u00f3n de servicio (DoS). La vulnerabilidad se debe a un manejo inadecuado de errores en conexiones SSL/TLS establecidas. Un atacante podr\u00eda aprovechar esta vulnerabilidad estableciendo una conexi\u00f3n SSL/TLS con el dispositivo afectado y luego enviando un mensaje SSL/TLS malicioso dentro de esa conexi\u00f3n. Una explotaci\u00f3n exitosa podr\u00eda permitir que el atacante haga que el dispositivo se recargue. Cisco ha publicado actualizaciones de software que solucionan esta vulnerabilidad. No existen workarounds que solucionen esta vulnerabilidad."
    }
  ],
  "id": "CVE-2020-27124",
  "lastModified": "2025-08-01T18:43:30.350",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-11-18T16:15:06.397",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEy"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-457"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    }
  ]
}


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