cve-2021-34754
Vulnerability from cvelistv5
Published
2021-10-27 18:55
Modified
2024-09-16 16:33
Severity
5.8 (Medium) - cvssV3_1 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Summary
Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities
References
SourceURLTags
ykramarz@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KPVendor Advisory
Impacted products
VendorProduct
CiscoCisco Firepower Threat Defense Software
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:19:48.159Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20211027 Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Firepower Threat Defense Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-10-27T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit these vulnerabilities by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should be activated for the ENIP packet."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-27T18:55:11",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20211027 Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP"
        }
      ],
      "source": {
        "advisory": "cisco-sa-ftd-enip-bypass-eFsxd8KP",
        "defect": [
          [
            "CSCvy02240"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-10-27T16:00:00",
          "ID": "CVE-2021-34754",
          "STATE": "PUBLIC",
          "TITLE": "Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Firepower Threat Defense Software",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit these vulnerabilities by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should be activated for the ENIP packet."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "5.8",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20211027 Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-ftd-enip-bypass-eFsxd8KP",
          "defect": [
            [
              "CSCvy02240"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-34754",
    "datePublished": "2021-10-27T18:55:11.850764Z",
    "dateReserved": "2021-06-15T00:00:00",
    "dateUpdated": "2024-09-16T16:33:19.260Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-34754\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2021-10-27T19:15:07.820\",\"lastModified\":\"2023-11-07T03:36:18.717\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit these vulnerabilities by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should be activated for the ENIP packet.\"},{\"lang\":\"es\",\"value\":\"M\u00faltiples vulnerabilidades en la inspecci\u00f3n de la carga \u00fatil del tr\u00e1fico del Protocolo Industrial Ethernet (ENIP) para el software Cisco Firepower Threat Defense (FTD) podr\u00edan permitir a un atacante remoto no autenticado omitir las reglas configuradas para el tr\u00e1fico ENIP. Estas vulnerabilidades son debido al procesamiento incompleto durante la inspecci\u00f3n profunda de paquetes para los paquetes ENIP. Un atacante podr\u00eda explotar estas vulnerabilidades enviando un paquete ENIP dise\u00f1ado a la interfaz objetivo. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante omitir el control de acceso configurado y las pol\u00edticas de intrusi\u00f3n que deber\u00edan activarse para el paquete ENIP\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.8,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_management_center:2.9.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"22C4D542-9925-48F4-805D-FAAAE1498E94\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4ED9EFA4-D903-4F21-91CD-96E8D13B8EC6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C96EC981-446D-4741-AEE0-F615A468A7FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"163F6B90-2F10-40CC-897B-FB58FA4568FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_management_center:2.9.18:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C8E9BF1-2B66-419E-B4C2-5D605BF459EC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.4.0\",\"versionEndExcluding\":\"6.4.0.13\",\"matchCriteriaId\":\"17F461B5-E600-4C81-BA3C-1DBC90D4D438\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.0\",\"versionEndExcluding\":\"6.6.5.1\",\"matchCriteriaId\":\"EDF402F7-DFC5-4A83-A209-9905AE54C49F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7.0\",\"versionEndExcluding\":\"6.7.0.3\",\"matchCriteriaId\":\"98DEDDAB-B8C5-4753-A208-94638E694FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0.0\",\"versionEndExcluding\":\"7.0.1\",\"matchCriteriaId\":\"7B2F537A-A488-45B6-AD4B-48B7064AE84C\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.