{"id":"CVE-2023-20071","state":"PUBLISHED","title":"Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an a","description":"Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a flaw in the FTP module of the Snort detection engine. An attacker could exploit this vulnerability by sending crafted FTP traffic through an affected device. A successful exploit could allow the attacker to bypass FTP inspection and deliver a malicious payload.","publishedAt":"2023-11-01T17:07:44.528Z","updatedAt":"2024-08-02T08:57:35.845Z","severity":{"score":5.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Firepower Threat Defense Software","Cisco Cisco Umbrella Insights Virtual Appliance","Cisco Cisco Cyber Vision","Cisco Cisco UTD SNORT IPS Engine Software"],"affected":[{"vendor":"Cisco","product":"Cisco Firepower Threat Defense Software","versions":[{"version":"6.2.3","status":"affected"},{"version":"6.2.3.1","status":"affected"},{"version":"6.2.3.2","status":"affected"},{"version":"6.2.3.3","status":"affected"},{"version":"6.2.3.4","status":"affected"},{"version":"6.2.3.5","status":"affected"},{"version":"6.2.3.6","status":"affected"},{"version":"6.2.3.7","status":"affected"},{"version":"6.2.3.8","status":"affected"},{"version":"6.2.3.10","status":"affected"},{"version":"6.2.3.11","status":"affected"},{"version":"6.2.3.9","status":"affected"},{"version":"6.2.3.12","status":"affected"},{"version":"6.2.3.13","status":"affected"},{"version":"6.2.3.14","status":"affected"},{"version":"6.2.3.15","status":"affected"},{"version":"6.2.3.16","status":"affected"},{"version":"6.2.3.17","status":"affected"},{"version":"6.2.3.18","status":"affected"},{"version":"6.6.0","status":"affected"},{"version":"6.6.0.1","status":"affected"},{"version":"6.6.1","status":"affected"},{"version":"6.6.3","status":"affected"},{"version":"6.6.4","status":"affected"},{"version":"6.6.5","status":"affected"},{"version":"6.6.5.1","status":"affected"},{"version":"6.6.5.2","status":"affected"},{"version":"6.6.7","status":"affected"},{"version":"6.6.7.1","status":"affected"},{"version":"6.4.0","status":"affected"},{"version":"6.4.0.1","status":"affected"},{"version":"6.4.0.3","status":"affected"},{"version":"6.4.0.2","status":"affected"},{"version":"6.4.0.4","status":"affected"},{"version":"6.4.0.5","status":"affected"},{"version":"6.4.0.6","status":"affected"},{"version":"6.4.0.7","status":"affected"},{"version":"6.4.0.8","status":"affected"},{"version":"6.4.0.9","status":"affected"},{"version":"6.4.0.10","status":"affected"},{"version":"6.4.0.11","status":"affected"},{"version":"6.4.0.12","status":"affected"},{"version":"6.4.0.13","status":"affected"},{"version":"6.4.0.14","status":"affected"},{"version":"6.4.0.15","status":"affected"},{"version":"6.4.0.16","status":"affected"},{"version":"6.7.0","status":"affected"},{"version":"6.7.0.1","status":"affected"},{"version":"6.7.0.2","status":"affected"},{"version":"6.7.0.3","status":"affected"},{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.0.5","status":"affected"},{"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"}]},{"vendor":"Cisco","product":"Cisco Umbrella Insights Virtual Appliance","versions":[{"version":"N/A","status":"affected"}]},{"vendor":"Cisco","product":"Cisco Cyber Vision","versions":[{"version":"3.0.4","status":"affected"},{"version":"3.0.0","status":"affected"},{"version":"3.0.1","status":"affected"},{"version":"3.0.2","status":"affected"},{"version":"3.0.3","status":"affected"},{"version":"3.0.5","status":"affected"},{"version":"3.0.6","status":"affected"},{"version":"3.1.0","status":"affected"},{"version":"3.1.2","status":"affected"},{"version":"3.1.1","status":"affected"},{"version":"3.2.3","status":"affected"},{"version":"3.2.1","status":"affected"},{"version":"3.2.4","status":"affected"},{"version":"3.2.0","status":"affected"},{"version":"3.2.2","status":"affected"},{"version":"4.0.0","status":"affected"},{"version":"4.0.1","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"4.0.3","status":"affected"},{"version":"4.1.0","status":"affected"},{"version":"4.1.1","status":"affected"},{"version":"4.1.2","status":"affected"}]},{"vendor":"Cisco","product":"Cisco UTD SNORT IPS Engine Software","versions":[{"version":"16.12.1a","status":"affected"},{"version":"16.12.2","status":"affected"},{"version":"16.12.3","status":"affected"},{"version":"16.12.4","status":"affected"},{"version":"16.12.5","status":"affected"},{"version":"16.12.6","status":"affected"},{"version":"16.12.7","status":"affected"},{"version":"16.12.8","status":"affected"},{"version":"16.6.1","status":"affected"},{"version":"16.6.5","status":"affected"},{"version":"16.6.6","status":"affected"},{"version":"16.6.7a","status":"affected"},{"version":"16.6.9","status":"affected"},{"version":"16.6.10","status":"affected"},{"version":"17.1.1","status":"affected"},{"version":"17.2.1r","status":"affected"},{"version":"17.3.1a","status":"affected"},{"version":"17.3.2","status":"affected"},{"version":"17.3.3","status":"affected"},{"version":"17.3.4a","status":"affected"},{"version":"17.3.6","status":"affected"},{"version":"17.3.5","status":"affected"},{"version":"17.3.7","status":"affected"},{"version":"3.17.0S","status":"affected"},{"version":"3.17.1S","status":"affected"},{"version":"17.4.1a","status":"affected"},{"version":"17.4.2","status":"affected"},{"version":"17.4.1b","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","status":"affected"},{"version":"17.6.5","status":"affected"},{"version":"17.7.1a","status":"affected"},{"version":"17.7.2","status":"affected"},{"version":"17.10.1a","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.8.1a","status":"affected"},{"version":"Fuji-16.9.2","status":"affected"},{"version":"Fuji-16.9.4","status":"affected"},{"version":"Fuji-16.9.6","status":"affected"},{"version":"Fuji-16.9.3","status":"affected"},{"version":"Fuji-16.9.7","status":"affected"},{"version":"Fuji-16.9.8","status":"affected"},{"version":"Fuji-16.9.5","status":"affected"},{"version":"Denali-16.3.3","status":"affected"},{"version":"Denali-16.3.9","status":"affected"},{"version":"Denali-16.3.7","status":"affected"},{"version":"Denali-16.3.5","status":"affected"},{"version":"Denali-16.3.4","status":"affected"},{"version":"Everest-16.6.3","status":"affected"},{"version":"Everest-16.6.4","status":"affected"},{"version":"Everest-16.6.2","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM"],"weaknesses":["CWE-1039"],"ingestedAt":"2026-10-29T20:05:36.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/20xxx/CVE-2023-20071.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-20071","state":"PUBLISHED","datePublished":"2023-11-01T17:07:44.528Z","dateUpdated":"2024-08-02T08:57:35.845Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2022-10-27T18:47:50.328Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a flaw in the FTP module of the Snort detection engine. An attacker could exploit this vulnerability by sending crafted FTP traffic through an affected device. A successful exploit could allow the attacker to bypass FTP inspection and deliver a malicious payload."}],"affected":[{"vendor":"Cisco","product":"Cisco Firepower Threat Defense 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Umbrella Insights Virtual Appliance","versions":[{"version":"N/A","status":"affected"}]},{"vendor":"Cisco","product":"Cisco Cyber Vision","versions":[{"version":"3.0.4","status":"affected"},{"version":"3.0.0","status":"affected"},{"version":"3.0.1","status":"affected"},{"version":"3.0.2","status":"affected"},{"version":"3.0.3","status":"affected"},{"version":"3.0.5","status":"affected"},{"version":"3.0.6","status":"affected"},{"version":"3.1.0","status":"affected"},{"version":"3.1.2","status":"affected"},{"version":"3.1.1","status":"affected"},{"version":"3.2.3","status":"affected"},{"version":"3.2.1","status":"affected"},{"version":"3.2.4","status":"affected"},{"version":"3.2.0","status":"affected"},{"version":"3.2.2","status":"affected"},{"version":"4.0.0","status":"affected"},{"version":"4.0.1","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"4.0.3","status":"affected"},{"version":"4.1.0","status":"affected"},{"version":"4.1.1","status":"affected"},{"version":"4.1.2","status":"affected"}]},{"vendor":"Cisco","product":"Cisco UTD SNORT IPS Engine 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Recognition Mechanism with Inadequate Detection or Handling of Adversarial Input Perturbations","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2024-01-25T16:57:41.206Z"},"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-snort-ftd-zXYtnjOM","discovery":"INTERNAL","defects":["CSCwb69096","CSCwd83613","CSCwd09631","CSCwe02137","CSCwe57521"]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM","name":"cisco-sa-snort-ftd-zXYtnjOM","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T08:57:35.845Z"}}]}}}