fkie_cve-2020-3561
Vulnerability from fkie_nvd
Published
2020-10-21 19:15
Modified
2024-11-21 05:31
Severity ?
4.7 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Summary
A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-crlf-inj-BX9uRwSnVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-crlf-inj-BX9uRwSnVendor Advisory
Impacted products
Vendor Product Version
cisco adaptive_security_appliance *
cisco firepower_threat_defense *
cisco firepower_threat_defense *
cisco firepower_threat_defense *
cisco firepower_threat_defense *
cisco adaptive_security_appliance_software *
cisco adaptive_security_appliance_software *
cisco adaptive_security_appliance_software *
cisco adaptive_security_appliance_software *
cisco adaptive_security_appliance_software *
cisco adaptive_security_appliance_software *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el Clientless SSL VPN (WebVPN) de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podr\u00eda permitir a un atacante remoto no autenticado inyectar encabezados HTTP arbitrarios en las respuestas del sistema afectado.\u0026#xa0;La vulnerabilidad es debido a un saneamiento de entrada inapropiada.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad al persuadir a un usuario de la interfaz para que haga clic en un enlace dise\u00f1ado.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante conducir un ataque de inyecci\u00f3n CRLF, agregando encabezados HTTP arbitrarios en las respuestas del sistema y redireccionando al usuario a sitios web arbitrarios"
    }
  ],
  "id": "CVE-2020-3561",
  "lastModified": "2024-11-21T05:31:19.147",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
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          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
          "version": "3.0"
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        "impactScore": 1.4,
        "source": "psirt@cisco.com",
        "type": "Secondary"
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    ],
    "cvssMetricV31": [
      {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
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        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2020-10-21T19:15:17.793",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-crlf-inj-BX9uRwSn"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-93"
        }
      ],
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      "type": "Secondary"
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          "value": "CWE-74"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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