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authentication information is expected on ingress. So if the peer is an unaffected device transit traffic is going to fail in both directions. If the peer is an also affected device transit traffic works, but without authentication, and configuration and CLI operational commands indicate authentication is performed.\nThis issue affects Junos OS:\n\n\n\n * All versions before 20.4R3-S7,\n * 21.1 versions before 21.1R3,\u00a0\n * 21.2 versions before 21.2R2-S1, 21.2R3,\u00a0\n * 21.3 versions before 21.3R1-S2, 21.3R2."}, {"lang": "es", "value": "Una vulnerabilidad de autenticaci\u00f3n faltante para funci\u00f3n cr\u00edtica en el motor de reenv\u00edo de paquetes (pfe) de Juniper Networks Junos OS en la serie MX con SPC3 y la serie SRX permite que un atacante basado en red no autenticado cause un impacto limitado en la integridad o disponibilidad del dispositivo. Si un dispositivo est\u00e1 configurado con el algoritmo de autenticaci\u00f3n IPsec hmac-sha-384 o hmac-sha-512, los t\u00faneles se establecen normalmente, pero para el tr\u00e1fico que atraviesa el t\u00fanel no se env\u00eda informaci\u00f3n de autenticaci\u00f3n con los datos cifrados en la salida y no se espera informaci\u00f3n de autenticaci\u00f3n en ingreso. Entonces, si el par es un dispositivo no afectado, el tr\u00e1fico de tr\u00e1nsito fallar\u00e1 en ambas direcciones. Si el par es un dispositivo tambi\u00e9n afectado, el tr\u00e1fico de tr\u00e1nsito funciona, pero sin autenticaci\u00f3n, y los comandos operativos de configuraci\u00f3n y CLI indican que se realiza la autenticaci\u00f3n. Este problema afecta a Junos OS: todas las versiones anteriores a 20.4R3-S7, versiones 21.1 anteriores a 21.1R3, versiones 21.2 anteriores a 21.2R2-S1, 21.2R3, versiones 21.3 anteriores a 21.3R1-S2, 21.3R2."}], "id": "CVE-2024-30391", "lastModified": "2025-04-11T14:09:43.030", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 2.5, "source": "sirt@juniper.net", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "sirt@juniper.net", "type": "Primary"}]}, "published": "2024-04-12T16:15:38.773", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "http://supportportal.juniper.net/JSA79188"}, {"source": "sirt@juniper.net", "tags": ["Not Applicable"], "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://supportportal.juniper.net/JSA79188"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Not Applicable"], "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-306"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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