{"containers": {"cna": {"affected": [{"product": "Cisco Enterprise NFV Infrastructure Software ", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2021-09-01T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device."}], "exploits": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory. "}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-289", "description": "CWE-289", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-04-22T18:05:12", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "20210901 Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVh"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664"}], "source": {"advisory": "cisco-sa-nfvis-g2DMVVh", "defect": [["CSCvz16015"]], "discovery": "INTERNAL"}, "title": "Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-09-01T16:00:00", "ID": "CVE-2021-34746", "STATE": "PUBLIC", "TITLE": "Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco Enterprise NFV Infrastructure Software ", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "Cisco"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device."}]}, "exploit": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory. "}], "impact": {"cvss": {"baseScore": "9.8", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-289"}]}]}, "references": {"reference_data": [{"name": "20210901 Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVh"}, {"name": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664", "refsource": "MISC", "url": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664"}]}, "source": {"advisory": "cisco-sa-nfvis-g2DMVVh", "defect": [["CSCvz16015"]], "discovery": "INTERNAL"}}}}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2021-34746", "datePublished": "2021-09-01T00:00:00", "dateReserved": "2021-06-15T00:00:00", "dateUpdated": "2022-04-22T18:05:12", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:enterprise_nfv_infrastructure_software:*:*:*:*:*:*:*:*", "matchCriteriaId": "B0593B05-4708-452B-A274-981D292C347D", "versionEndExcluding": "4.6.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n de autenticaci\u00f3n, autorizaci\u00f3n y contabilidad (AAA) de TACACS+ del software de infraestructura NFV de Cisco (NFVIS), podr\u00eda permitir a un atacante remoto no autenticado omitir la autenticaci\u00f3n e iniciar sesi\u00f3n en un dispositivo afectado como administrador. Esta vulnerabilidad es debido a una comprobaci\u00f3n incompleta de la entrada suministrada por el usuario que se pasa a un script de autenticaci\u00f3n. Un atacante podr\u00eda explotar esta vulnerabilidad al inyectar par\u00e1metros en una petici\u00f3n de autenticaci\u00f3n. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante omitir la autenticaci\u00f3n e iniciar sesi\u00f3n como administrador en el dispositivo afectado"}], "id": "CVE-2021-34746", "lastModified": "2023-11-07T03:36:17.353", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "ykramarz@cisco.com", "type": "Secondary"}]}, "published": "2021-09-02T03:15:06.687", "references": [{"source": "ykramarz@cisco.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664"}, {"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVh"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-289"}], "source": "ykramarz@cisco.com", "type": "Secondary"}]}

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