CVE-2023-20070

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-20070", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.328Z", "datePublished": "2023-11-01T17:08:19.315Z", "dateUpdated": "2024-08-02T08:57:35.637Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-01-25T16:57:40.830Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart automatically. No manual intervention is required."}], "affected": [{"vendor": "Cisco", "product": "Cisco Firepower Threat Defense Software", "versions": [{"version": "7.2.0", "status": "affected"}, {"version": "7.2.0.1", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Clearing of Heap Memory Before Release ('Heap Inspection')", "type": "cwe", "cweId": "CWE-244"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV", "name": "cisco-sa-ftd-snort3-uAnUntcV"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L", "baseScore": 4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}}], "exploits": [{"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."}], "source": {"advisory": "cisco-sa-ftd-snort3-uAnUntcV", "discovery": "EXTERNAL", "defects": ["CSCwc59953"]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:57:35.637Z"}, "title": "CVE Program Container", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV", "name": "cisco-sa-ftd-snort3-uAnUntcV", "tags": ["x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"product": "Cisco Firepower Threat Defense Software", "vendor": "Cisco", "versions": [{"status": "affected", "version": "7.2.0"}, {"status": "affected", "version": "7.2.0.1"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "237462A2-E0CF-4201-9115-D94910F9745B", "vulnerable": true}, {"criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:7.2.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "2CA2F5B0-0106-4FF2-91BD-AEF3F064F69E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart automatically. No manual intervention is required."}, {"lang": "es", "value": "Una vulnerabilidad en la implementaci\u00f3n de TLS 1.3 del software Cisco Firepower Threat Defense (FTD) podr\u00eda permitir que un atacante remoto no autenticado provoque que el motor de detecci\u00f3n Snort 3 se reinicie inesperadamente. Esta vulnerabilidad se debe a un error l\u00f3gico en c\u00f3mo se manejan las asignaciones de memoria durante una sesi\u00f3n TLS 1.3. Bajo limitaciones de tiempo espec\u00edficas, un atacante podr\u00eda aprovechar esta vulnerabilidad enviando una secuencia de mensajes TLS 1.3 manipulada a trav\u00e9s de un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante hacer que el motor de detecci\u00f3n de Snort 3 se recargue, lo que resultar\u00eda en una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS). Mientras el motor de detecci\u00f3n de Snort se recarga, los paquetes que pasan por el dispositivo FTD y se env\u00edan al motor de detecci\u00f3n de Snort se descartar\u00e1n. El motor de detecci\u00f3n de Snort se reiniciar\u00e1 autom\u00e1ticamente. No se requiere intervenci\u00f3n manual."}], "id": "CVE-2023-20070", "lastModified": "2026-08-11T19:33:44.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "psirt@cisco.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-11-01T18:15:09.027", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-244"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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