FKIE_CVE-2019-1884

Vulnerability from fkie_nvd - Published: 2019-07-04 20:15 - Updated: 2024-11-21 04:37
Severity ?
7.7 (High) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-asyncos-wsaVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-asyncos-wsaVendor Advisory
Impacted products
Vendor Product Version
cisco asyncos *
cisco asyncos *
cisco asyncos *
cisco web_security_appliance 10.1.4-017
cisco web_security_appliance 10.5.2-072
cisco web_security_appliance 11.5.1-fcs-125
cisco web_security_appliance 11.7.0-256
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6B833081-5EA8-42BB-9CD0-D278AFE3FFDA",
              "versionEndExcluding": "10.5.5-005",
              "versionStartIncluding": "10.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D72CE539-D7A7-41D9-9B0E-727435449E80",
              "versionEndExcluding": "11.5.2-020",
              "versionStartIncluding": "11.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0BD71C35-D0E3-403C-BE0D-63A8E3277BEA",
              "versionEndExcluding": "11.7.0-407",
              "versionStartIncluding": "11.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:web_security_appliance:10.1.4-017:*:*:*:*:*:*:*",
              "matchCriteriaId": "4C1C1F79-CEFE-4361-8D0C-584BD865DD37",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:web_security_appliance:10.5.2-072:*:*:*:*:*:*:*",
              "matchCriteriaId": "B8F218D6-2AF8-449B-8016-E0B8AAA362D9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:web_security_appliance:11.5.1-fcs-125:*:*:*:*:*:*:*",
              "matchCriteriaId": "4608EA78-F5CD-42A3-9F25-124ED4A7F792",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:web_security_appliance:11.7.0-256:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA16DA3E-FD12-475B-997F-C5FDBC13AADA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la funcionalidad de proxy web de Cisco AsyncOS Software para Cisco Web Security Appliance (WSA) podr\u00eda permitir que un atacante remoto autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a mecanismos de validaci\u00f3n de entrada insuficientes para ciertos campos en las solicitudes HTTP/HTTPS enviadas a trav\u00e9s de un dispositivo afectado. Un atacante con \u00e9xito podr\u00eda explotar esta vulnerabilidad enviando una solicitud HTTP/HTTPS malintencionada a trav\u00e9s de un dispositivo afectado. Una vulnerabilidad podr\u00eda permitir que el atacante obligue al dispositivo a detener el procesamiento del tr\u00e1fico, lo que resulta en una condici\u00f3n DoS."
    }
  ],
  "id": "CVE-2019-1884",
  "lastModified": "2024-11-21T04:37:36.687",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-07-04T20:15:10.937",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-asyncos-wsa"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-asyncos-wsa"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.