CVE-2023-20071

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.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM	Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::

cpe:2.3:a:snort:snort:2.0:-:*:*:*:*:*:*

Configuration 2 (hide)

AND

OR	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::

cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:cisco:cyber_vision:*:*:*:*:*:*:*:*

Configuration 4 (hide)

OR	cpe:2.3:a:cisco:unified_threat_defense::::::::
	cpe:2.3:a:cisco:unified_threat_defense::::::::
	cpe:2.3:a:cisco:unified_threat_defense::::::::
	cpe:2.3:a:cisco:unified_threat_defense::::::::
	cpe:2.3:a:cisco:unified_threat_defense::::::::

Configuration 5 (hide)

cpe:2.3:o:cisco:meraki_mx_security_appliance_firmware:-:*:*:*:*:*:*:*

History

21 Nov 2024, 07:40

Type	Values Removed	Values Added
References	~~() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM - Vendor Advisory~~	() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM - Vendor Advisory

25 Jan 2024, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-11-01 18:15

Updated : 2024-11-21 07:40

NVD link : CVE-2023-20071

Mitre link : CVE-2023-20071

CVE.ORG link : CVE-2023-20071

JSON object : View

Products Affected

snort

snort

cisco

meraki_mx_security_appliance_firmware
firepower_threat_defense
cyber_vision
unified_threat_defense

CWE

CWE-1039

Automated Recognition Mechanism with Inadequate Detection or Handling of Adversarial Input Perturbations

NVD-CWE-noinfo

{"id": "CVE-2023-20071", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2023-11-01T18:15:09.090", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM", "tags": ["Vendor Advisory"], "source": "ykramarz@cisco.com"}, {"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-1039"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "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."}, {"lang": "es", "value": "Varios productos de Cisco se ven afectados por una vulnerabilidad en el motor de detecci\u00f3n Snort que podr\u00eda permitir que un atacante remoto no autenticado omitir las pol\u00edticas configuradas en un sistema afectado. Esta vulnerabilidad se debe a una falla en el m\u00f3dulo FTP del motor de detecci\u00f3n de Snort. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando tr\u00e1fico FTP manipulado a trav\u00e9s de un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante omitir la inspecci\u00f3n de FTP y entregar un payload maliciosa."}], "lastModified": "2024-11-21T07:40:29.093", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C62E4A4C-EE6D-49B5-ADCC-21386CD9F2D9", "versionEndExcluding": "6.4.0.17"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F2A381B6-2AEF-4A0F-A151-8C3CEBBA7AC2", "versionEndExcluding": "7.0.6", "versionStartIncluding": "6.5.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB0ABE0D-B90E-45BD-8978-DD6EBC863EC6", "versionEndExcluding": "7.2.4", "versionStartIncluding": "7.1.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "233409FB-3D8D-41A9-BEC6-8A0E758717ED", "versionEndExcluding": "7.3.1.2", "versionStartIncluding": "7.3.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:snort:snort:2.0:-:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4C27CF59-184F-4FFD-9CE8-87F2589EB5AA"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7792398D-F563-4441-900D-ABFECAA884AF", "versionEndExcluding": "7.0.5", "versionStartIncluding": "6.7.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F64FDF4-9696-4FC8-9ADA-DF1727EF1A63", "versionEndExcluding": "7.1.0.3", "versionStartIncluding": "7.1.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F712E334-BA34-4D9C-9E72-DBEFCF9B0E66", "versionEndExcluding": "7.2.1", "versionStartIncluding": "7.2.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B5D0C2A5-A925-475B-8B2F-F8E3F27C0876", "versionEndExcluding": "3.1.32.0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:cyber_vision:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CCA9E447-86A4-46AC-9D6B-55D6F8664488", "versionEndExcluding": "4.1.3"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE0EDFC9-F9CD-487F-AB5C-38E8340BF427", "versionEndExcluding": "17.3.8", "versionStartIncluding": "17.3"}, {"criteria": "cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85C85786-8BA2-4194-9A07-9F8E676E75C9", "versionEndExcluding": "17.6.6", "versionStartIncluding": "17.6"}, {"criteria": "cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B50A5D29-0995-469D-86B8-0C5473FC54FC", "versionEndExcluding": "17.9.4", "versionStartIncluding": "17.9"}, {"criteria": "cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0DB2D2F1-FB90-485D-B6B4-B6E0A9351C95", "versionEndExcluding": "17.11.1a", "versionStartIncluding": "17.11"}, {"criteria": "cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC04A2AB-CAAA-4723-90FD-C35CED76E029", "versionEndExcluding": "17.12.1a", "versionStartIncluding": "17.12"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:meraki_mx_security_appliance_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C60FD7B-F41F-4307-B3F4-905E7B7C17AF"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}

5.8 /10