{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-20270", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.373Z", "datePublished": "2023-11-01T16:51:13.156Z", "dateUpdated": "2024-08-02T09:05:36.263Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-01-25T16:58:37.172Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition."}], "affected": [{"vendor": "Cisco", "product": "Cisco Firepower Threat Defense Software", "versions": [{"version": "7.1.0", "status": "affected"}, {"version": "7.1.0.1", "status": "affected"}, {"version": "7.1.0.2", "status": "affected"}, {"version": "7.1.0.3", "status": "affected"}, {"version": "7.2.0", "status": "affected"}, {"version": "7.2.0.1", "status": "affected"}, {"version": "7.2.1", "status": "affected"}, {"version": "7.2.2", "status": "affected"}, {"version": "7.2.3", "status": "affected"}, {"version": "7.3.0", "status": "affected"}, {"version": "7.3.1", "status": "affected"}, {"version": "7.3.1.1", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Input Validation", "type": "cwe", "cweId": "CWE-20"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV", "name": "cisco-sa-ftd-smbsnort3-dos-pfOjOYUV"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "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-smbsnort3-dos-pfOjOYUV", "discovery": "EXTERNAL", "defects": ["CSCwe19286"]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:05:36.263Z"}, "title": "CVE Program Container", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV", "name": "cisco-sa-ftd-smbsnort3-dos-pfOjOYUV", "tags": ["x_transferred"]}]}]}}

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Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando un flujo de paquetes SMB manipulado a trav\u00e9s de un dispositivo afectado. 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