CVE-2023-20057

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-20057", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.320Z", "datePublished": "2023-01-19T01:32:32.802Z", "dateUpdated": "2024-08-02T08:57:35.557Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-07-15T00:27:54.327Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device.\r\n\r This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device."}], "affected": [{"vendor": "Cisco", "product": "Cisco Email Security Appliance (ESA)", "versions": [{"version": "10.0.1-087", "status": "unaffected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Incomplete Filtering of One or More Instances of Special Elements", "type": "cwe", "cweId": "CWE-792"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-WbMQqNJh", "name": "cisco-sa-esa-url-bypass-WbMQqNJh"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N", "baseScore": 0, "baseSeverity": "NONE", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "NONE"}}], "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-esa-url-bypass-WbMQqNJh", "discovery": "EXTERNAL", "defects": ["CSCwb58117"]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:57:35.557Z"}, "title": "CVE Program Container", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-WbMQqNJh", "name": "cisco-sa-esa-url-bypass-WbMQqNJh", "tags": ["x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"product": "Cisco Email Security Appliance (ESA)", "vendor": "Cisco", "versions": [{"status": "unaffected", "version": "10.0.1-087"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:asyncos:-:*:*:*:*:*:*:*", "matchCriteriaId": "87AA6AB8-12B9-4810-9D06-01EEBF7B01C9", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:cisco:email_security_appliance_c160:-:*:*:*:*:*:*:*", "matchCriteriaId": "50009089-506D-42B4-B34D-CFC719B0395B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c170:-:*:*:*:*:*:*:*", "matchCriteriaId": "0E5FD72D-E9E6-451C-9483-EBFDD41C9336", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c190:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2C890DD-36BE-416F-B0D3-FB8AAD5F03BD", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c370:-:*:*:*:*:*:*:*", "matchCriteriaId": "B8ED62C8-2B7E-47CA-BE16-00E02CA72763", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c370d:-:*:*:*:*:*:*:*", "matchCriteriaId": "93AF10FC-7988-446F-86E6-8A4E90762DA0", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c380:-:*:*:*:*:*:*:*", "matchCriteriaId": "CBA19FA3-6CFE-4D6A-A987-CE49A650BE3E", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c390:-:*:*:*:*:*:*:*", "matchCriteriaId": "675068B9-167C-42F9-87DD-FF0146B8ADDC", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c670:-:*:*:*:*:*:*:*", "matchCriteriaId": "A1149EA5-37D0-4E1F-803D-A7A0658653FE", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c680:-:*:*:*:*:*:*:*", "matchCriteriaId": "1A2334C4-812A-4C28-B708-EA969C05D4C1", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c690:-:*:*:*:*:*:*:*", "matchCriteriaId": "4BA67042-D6DD-436D-9E41-475CBD670940", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_c690x:-:*:*:*:*:*:*:*", "matchCriteriaId": "57AFD49E-F367-4776-85B8-6BD7F57D78C9", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:email_security_appliance_x1070:-:*:*:*:*:*:*:*", "matchCriteriaId": "E312DF25-A961-4682-B374-4A394431F8E3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device.\r\n\r This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device."}, {"lang": "es", "value": "Una vulnerabilidad en el mecanismo de filtrado de URL del software Cisco AsyncOS para Cisco Email Security Appliance (ESA) podr\u00eda permitir que un atacante remoto no autenticado evite los filtros de reputaci\u00f3n de URL en un dispositivo afectado. Esta vulnerabilidad se debe a un procesamiento inadecuado de las URL. Un atacante podr\u00eda aprovechar esta vulnerabilidad creando una URL de una manera particular. Un exploit exitoso podr\u00eda permitir al atacante eludir los filtros de reputaci\u00f3n de URL configurados para un dispositivo afectado, lo que podr\u00eda permitir que URL maliciosas pasen a trav\u00e9s del dispositivo."}], "id": "CVE-2023-20057", "lastModified": "2026-06-17T05:29:22.733", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 0.0, "baseSeverity": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 0.0, "source": "psirt@cisco.com", "type": "Secondary"}, {"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"}]}, "published": "2023-01-20T07:15:17.377", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-WbMQqNJh"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-WbMQqNJh"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-792"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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