{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during the resolution of a Cisco TAC support case."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions.\r\n\r\nThis vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions.\r\n\r\nCisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the November 2023 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: November 2023 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74985\"].",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "At the time of publication, this vulnerability affected Cisco FTD Software if it was running a vulnerable release and had the Snort 3 detection engine configured with a geolocation inspection policy.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n    Determine Cisco FTD Software Snort Configuration\r\nTo determine if Snort 3 is running on Cisco FTD Software, see Determine the Active Snort Version that Runs on Firepower Threat Defense (FTD) [\"https://www.cisco.com/c/en/us/support/docs/security/secure-firewall-threat-defense/220415-determine-the-active-snort-version-that.html\"].  Snort 3 has to be active for this vulnerability to be exploited.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following products:\r\n\r\nCisco Adaptive Security Appliance (ASA) Software\r\nCisco Firepower Management Center (FMC) Software\r\nOpen Source Snort 2\r\nOpen Source Snort 3",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "Exploitation of this vulnerability could allow an attacker to bypass protections that are provided by an ACL that is applied on an affected device. The overall impact of exploitation is organization specific because it depends on the importance of the assets that the ACL was supposed to protect. Customers should evaluate how exploitation of this vulnerability would impact their network and proceed according to their own vulnerability-handling and remediation processes.",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "The Cisco Security Indicators of Compromise Reference Guide [\"https://sec.cloudapps.cisco.com/security/center/resources/iocs.html\"] lists commonly observed IoCs, which can help identify devices that may have been impacted by the vulnerability disclosed in this Cisco security advisory.",
        "title": "Indicators of Compromise"
      },
      {
        "category": "general",
        "text": "There is a workaround that addresses this vulnerability.\r\n\r\nIn the geolocation configuration file, configure a non-critical IP exclusion range as the last entry. This entry will be ignored.\r\n\r\nWhile this workaround has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "When considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\nCisco ASA, FMC, and FTD Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco ASA, FMC, and FTD Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (\u201cCombined First Fixed\u201d).\r\n\r\nTo use the tool, go to the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] page and follow the instructions. Alternatively, use the following form to search for vulnerabilities that affect a specific software release. To use the form, follow these steps:\r\n\r\nChoose which advisories the tool will search\u2014all advisories, only advisories with a Critical or High Security Impact Rating (SIR) [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr\"], or only this advisory.\r\nChoose the appropriate software.\r\nChoose the appropriate platform.\r\nEnter a release number\u2014for example, 9.16.2.11 for Cisco ASA Software or 6.6.7 for Cisco FTD Software.\r\nClick Check.\r\n  Only this advisoryAll Critical and High advisoriesAll advisoriesCisco ASA SoftwareCisco FMC SoftwareCisco FTD SoftwareAny Platform3000 Series Industrial Security Appliances (ISA)ASA 5500-X Series FirewallsASA Service ModuleAdaptive Security Virtual Appliance (ASAv)Firepower 1000 SeriesFirepower 2100 SeriesFirepower 4100 SeriesFirepower 9000 SeriesFirepower NGFW VirtualSecure Firewall 3100 SeriesFirepower Management Center Appliances\r\n\r\n\r\n\r\n\r\n\r\nFor instructions on upgrading your FTD device, see Cisco Firepower Management Center Upgrade Guide [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/upgrade/fpmc-upgrade-guide/getting_started.html\"].\r\n\r\n Additional Resources\r\nFor help determining the best Cisco ASA, FTD, or FMC Software release, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.\r\n\r\nCisco ASA Compatibility [\"https://www.cisco.com/c/en/us/td/docs/security/asa/compatibility/asamatrx.html\"]\r\nCisco Secure Firewall ASA Upgrade Guide [\"https://www.cisco.com/c/en/us/td/docs/security/asa/upgrade/asa-upgrade/planning.html\"]\r\nCisco Secure Firewall Threat Defense Compatibility Guide [\"https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/compatibility/threat-defense-compatibility.html\"]",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "This vulnerability was found during the resolution of a Cisco TAC support case.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Firepower Threat Defense Software Snort 3 Geolocation IP Filter Bypass Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
      },
      {
        "category": "external",
        "summary": "Cisco Event Response: November 2023 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication",
        "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74985"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "Determine the Active Snort Version that Runs on Firepower Threat Defense (FTD)",
        "url": "https://www.cisco.com/c/en/us/support/docs/security/secure-firewall-threat-defense/220415-determine-the-active-snort-version-that.html"
      },
      {
        "category": "external",
        "summary": "Cisco Security Indicators of Compromise Reference Guide",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/iocs.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "Cisco Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      },
      {
        "category": "external",
        "summary": "Security Impact Rating (SIR)",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr"
      },
      {
        "category": "external",
        "summary": "Cisco Firepower Management Center Upgrade Guide",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/upgrade/fpmc-upgrade-guide/getting_started.html"
      },
      {
        "category": "external",
        "summary": "Cisco ASA Compatibility",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/asa/compatibility/asamatrx.html"
      },
      {
        "category": "external",
        "summary": "Cisco Secure Firewall ASA Upgrade Guide",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/asa/upgrade/asa-upgrade/planning.html"
      },
      {
        "category": "external",
        "summary": "Cisco Secure Firewall Threat Defense Compatibility Guide",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/compatibility/threat-defense-compatibility.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Firepower Threat Defense Software Snort 3 Geolocation IP Filter Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2023-11-01T16:00:00+00:00",
      "generator": {
        "date": "2023-11-01T16:01:12+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-ftdsnort3sip-bypass-LMz2ThKn",
      "initial_release_date": "2023-11-01T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2023-11-01T16:00:15+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Firepower Threat Defense Software",
            "product": {
              "name": "Cisco Firepower Threat Defense Software ",
              "product_id": "CSAFPID-220203"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-20267",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwe69833"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-220203"
        ]
      },
      "release_date": "2023-11-01T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-220203"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.0,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-220203"
          ]
        }
      ],
      "title": "Cisco Firepower Threat Defense Software Snort3 Geolocation IP Filter Bypass"
    }
  ]
}

{
  "GSD": {
    "alias": "CVE-2023-20267",
    "id": "GSD-2023-20267"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-20267"
      ],
      "details": "A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions.",
      "id": "GSD-2023-20267",
      "modified": "2023-12-13T01:20:28.890845Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "ID": "CVE-2023-20267",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Cisco Firepower Threat Defense Software",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "6.7.0"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "6.7.0.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "6.7.0.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "6.7.0.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.0"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.0.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.1.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.2.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.4"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.0.5"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.1.0"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.1.0.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.1.0.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.1.0.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.2.0"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.2.0.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.2.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.2.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.2.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.3.0"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.3.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "7.3.1.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Cisco"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions."
          }
        ]
      },
      "exploit": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-284",
                "lang": "eng",
                "value": "Improper Access Control"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn",
            "refsource": "MISC",
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
          }
        ]
      },
      "source": {
        "advisory": "cisco-sa-ftdsnort3sip-bypass-LMz2ThKn",
        "defects": [
          "CSCwe69833"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C09834D9-E0C1-49C9-92A9-4FF1F84D37FC",
                    "versionEndIncluding": "7.3.1.1",
                    "versionStartIncluding": "6.7.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad en las reglas de geolocalizaci\u00f3n de IP de Snort 3 podr\u00eda permitir que un atacante remoto no autenticado potencialmente evite las restricciones de direcciones IP. Esta vulnerabilidad existe porque la configuraci\u00f3n de las reglas de geolocalizaci\u00f3n de IP no se analiza correctamente. Un atacante podr\u00eda aprovechar esta vulnerabilidad falsificando una direcci\u00f3n IP hasta omitir la restricci\u00f3n. Un exploit exitoso podr\u00eda permitir al atacante omitir las restricciones de direcciones IP basadas en la ubicaci\u00f3n."
          }
        ],
        "id": "CVE-2023-20267",
        "lastModified": "2024-01-25T17:15:42.653",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.0,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 1.4,
              "source": "ykramarz@cisco.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2023-11-01T18:15:09.810",
        "references": [
          {
            "source": "ykramarz@cisco.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
          }
        ],
        "sourceIdentifier": "ykramarz@cisco.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-284"
              }
            ],
            "source": "ykramarz@cisco.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

{
  "affected": [],
  "aliases": [
    "CVE-2023-20267"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-01T18:15:09Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions.",
  "id": "GHSA-8c85-2mj6-75qp",
  "modified": "2023-11-01T18:30:33Z",
  "published": "2023-11-01T18:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20267"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Firepower ist eine Firewall-Plattform von Cisco",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter Angreifer kann mehrere Schwachstellen in Cisco Firepower Threat Defense Software und Management Center ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen, beliebigen Code auszuf\u00fchren oder einen Denial-of-Service-Zustand zu verursachen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-2809 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2809.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2809 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2809"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-ftd-snort3-urldos-OccFQTeX"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-8U4HHxH8"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-intrusion-dos-DfT7wyGC"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-icmpv6-dos-4eMkLuN"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-11-01",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-fmc-code-inj-wSHrgz8L"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco Firepower Threat Defense Software und Management Center: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2023-11-01T23:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:49:54.635+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-2809",
      "initial_release_date": "2023-11-01T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-11-01T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Cisco Firepower Management Center",
                "product": {
                  "name": "Cisco Firepower Management Center",
                  "product_id": "T016458",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:cisco:firepower:management_center"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Cisco Firepower Threat Defense",
                "product": {
                  "name": "Cisco Firepower Threat Defense",
                  "product_id": "T029736",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:cisco:firepower:threat_defense"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firepower"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-20270",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der Interaktion zwischen dem Server Message Block (SMB)-Protokollpr\u00e4prozessor und der Snort 3-Erkennungs-Engine f\u00fcr die Cisco Firepower Threat Defense (FTD)-Software aufgrund einer unsachgem\u00e4\u00dfen Fehler\u00fcberpr\u00fcfung, wenn die Snort 3-Erkennungs-Engine SMB-Datenverkehr verarbeitet. Durch Senden eines manipulierten SMB-Paketstroms \u00fcber ein betroffenes Ger\u00e4t kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen und einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20270"
    },
    {
      "cve": "CVE-2023-20267",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in den IP-Geolokalisierungsregeln von Snort 3, da die Konfiguration f\u00fcr IP-Geolokalisierungsregeln nicht richtig geparst wird. Durch Spoofing einer IP-Adresse kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20267"
    },
    {
      "cve": "CVE-2023-20244",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der internen Paketverarbeitung der Cisco Firepower Threat Defense (FTD) Software aufgrund einer unsachgem\u00e4\u00dfen Behandlung bestimmter Pakete, wenn diese an die Inspektions-Engine gesendet werden. Durch das Senden einer Reihe von manipulierten Paketen an ein betroffenes Ger\u00e4t kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20244"
    },
    {
      "cve": "CVE-2023-20177",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der Implementierung der SSL-Dateirichtlinie der Cisco Firepower Threat Defense (FTD) Software aufgrund eines Logikfehlers, der in bestimmten F\u00e4llen mit der Snort 3 Erkennungsmaschine und einer SSL/TLS-Verbindung auftritt. Durch das Senden einer manipulierten SSL/TLS-Verbindung \u00fcber ein betroffenes Ger\u00e4t kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen und Sicherheitsma\u00dfnahmen zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20177"
    },
    {
      "cve": "CVE-2023-20083",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der ICMPv6-Inspektion, wenn sie mit der Snort 2-Erkennungs-Engine f\u00fcr die Cisco Firepower Threat Defense (FTD) Software konfiguriert ist. Dies ist auf eine unsachgem\u00e4\u00dfe Fehlerpr\u00fcfung beim Parsen von Feldern innerhalb des ICMPv6-Headers zur\u00fcckzuf\u00fchren, die dazu f\u00fchren kann, dass die CPU eines betroffenen Ger\u00e4ts auf 100 Prozent ansteigt, wodurch die gesamte Verkehrsverarbeitung gestoppt werden kann. Durch das Senden eines manipulierten ICMPv6-Pakets \u00fcber ein betroffenes Ger\u00e4t kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20083"
    },
    {
      "cve": "CVE-2023-20070",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der Interaktion zwischen dem Server Message Block (SMB)-Protokollpr\u00e4prozessor und der Snort 3-Erkennungs-Engine f\u00fcr die Cisco Firepower Threat Defense (FTD)-Software aufgrund einer unsachgem\u00e4\u00dfen Fehler\u00fcberpr\u00fcfung, wenn die Snort 3-Erkennungs-Engine SMB-Datenverkehr verarbeitet. Durch Senden eines manipulierten SMB-Paketstroms \u00fcber ein betroffenes Ger\u00e4t kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen und einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20070"
    },
    {
      "cve": "CVE-2023-20063",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in den Kommunikationsmechanismen zwischen Ger\u00e4ten, auf denen die Cisco Firepower Threat Defense (FTD) Software l\u00e4uft, und Ger\u00e4ten, auf denen die Cisco Firepower Management (FMC) Software l\u00e4uft, aufgrund einer unzureichenden Validierung der vom Benutzer bereitgestellten Eingaben. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um beliebigen Code auszuf\u00fchren, indem er auf den Expertenmodus eines betroffenen Ger\u00e4ts zugreift und bestimmte Befehle an ein angeschlossenes System sendet."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20063"
    },
    {
      "cve": "CVE-2023-20031",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Firepower. Dieser Fehler besteht in der Handhabung von SSL/TLS-Zertifikaten bei der Integration der Snort 3 Detection Engine mit der Cisco Firepower Threat Defense (FTD) Software aufgrund eines Logikfehlers, der auftritt, wenn auf ein SSL/TLS-Zertifikat zugegriffen wird, das unter Last steht, w\u00e4hrend es eine SSL-Verbindung initiiert. Durch das Senden einer hohen Anzahl von SSL/TLS-Verbindungsanfragen, die von der Snort 3 Detection Engine auf einem betroffenen Ger\u00e4t untersucht werden sollen, kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen und einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029736",
          "T016458"
        ]
      },
      "release_date": "2023-11-01T23:00:00Z",
      "title": "CVE-2023-20031"
    }
  ]
}