CVE-2024-39547

{"id": "CVE-2024-39547", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "sirt@juniper.net", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "sirt@juniper.net", "cvssData": {"safety": "NOT_DEFINED", "version": "4.0", "recovery": "USER", "baseScore": 8.7, "automatable": "YES", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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:Y/R:U/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "modifiedAttackVector": "NOT_DEFINED", "integrityRequirements": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "availabilityRequirements": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subsequentSystemIntegrity": "NONE", "vulnerableSystemIntegrity": "NONE", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "confidentialityRequirements": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "subsequentSystemAvailability": "LOW", "vulnerableSystemAvailability": "HIGH", "subsequentSystemConfidentiality": "NONE", "vulnerableSystemConfidentiality": "NONE", "modifiedSubsequentSystemIntegrity": "NOT_DEFINED", "modifiedVulnerableSystemIntegrity": "NOT_DEFINED", "modifiedSubsequentSystemAvailability": "NOT_DEFINED", "modifiedVulnerableSystemAvailability": "NOT_DEFINED", "modifiedSubsequentSystemConfidentiality": "NOT_DEFINED", "modifiedVulnerableSystemConfidentiality": "NOT_DEFINED"}}]}, "published": "2024-10-11T16:15:07.483", "references": [{"url": "https://supportportal.juniper.net/JSA88108", "source": "sirt@juniper.net"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "sirt@juniper.net", "description": [{"lang": "en", "value": "CWE-755"}]}], "descriptions": [{"lang": "en", "value": "An\u00a0Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS).\n\nIf specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process.\n\nWhile not explicitly required, the impact is more severe when RIB sharding is enabled.\n\nTask accounting shows unexpected reads by the RPD Server jobs for shards:\n\nuser@junos> show task accounting detail\n...\nread:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\\\n\n\n\nThis issue affects:\n\nJunos OS with cRPD:\u00a0\n\n * All versions before 21.2R3-S8,\u00a0\n * 21.4 before 21.4R3-S7,\u00a0\n * 22.1 before 22.1R3-S6,\u00a0\n * 22.2 before 22.2R3-S4,\u00a0\n * 22.3 before 22.3R3-S3,\u00a0\n * 22.4 before 22.4R3-S2,\u00a0\n * 23.2 before 23.2R2-S2,\u00a0\n * 24.2 before 24.2R2;\u00a0\n\n\nJunos OS Evolved with cRPD:\u00a0\n\n * All versions before 21.4R3-S7-EVO,\u00a0\n * 22.2 before 22.2R3-S4-EVO,\u00a0\n * 22.3 before 22.3R3-S3-EVO,\u00a0\n * 22.4 before 22.4R3-S2-EVO,\u00a0\n * 23.2 before 23.2R2-EVO."}, {"lang": "es", "value": "Una vulnerabilidad de manejo inadecuado de condiciones excepcionales en el servidor rpd de Juniper Networks Junos OS y Junos OS Evolved dentro de cRPD permite que un atacante no autenticado basado en la red env\u00ede tr\u00e1fico TCP manipulado al motor de enrutamiento (RE) para provocar una denegaci\u00f3n de servicio (DoS) basada en la CPU. Si el plano de control recibe tr\u00e1fico TCP especialmente manipulado o una sesi\u00f3n TCP finaliza inesperadamente, esto provocar\u00e1 un aumento en la utilizaci\u00f3n de la CPU del plano de control por parte del proceso rpd-server. Si bien no se requiere expl\u00edcitamente, el impacto es m\u00e1s grave cuando se habilita la fragmentaci\u00f3n RIB. La contabilidad de tareas muestra lecturas inesperadas de los trabajos del servidor RPD para los fragmentos: user@junos> show task accounting detail ... read:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\\ read:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\\ read:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 EJECUCIONES: 233888\\ lectura:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 EJECUCIONES: 233888\\ Este problema afecta a: Junos OS con cRPD: * Todas las versiones anteriores a 21.2R3-S8, * 21.4 anteriores a 21.4R3-S7, * 22.1 anteriores a 22.1R3-S6, * 22.2 anteriores a 22.2R3-S4, * 22.3 anteriores a 22.3R3-S3, * 22.4 anteriores a 22.4R3-S2, * 23.2 antes de 23.2R2-S2, * 24.2 antes de 24.2R2; Junos OS evolucionado con cRPD: * Todas las versiones anteriores a 21.4R3-S7-EVO, * 22.2 antes de 22.2R3-S4-EVO, * 22.3 antes de 22.3R3-S3-EVO, * 22.4 antes de 22.4R3-S2-EVO, * 23.2 antes de 23.2R2-EVO."}], "lastModified": "2024-10-15T12:58:51.050", "sourceIdentifier": "sirt@juniper.net"}