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traffic classification vulnerability in Juniper Networks Junos OS on the SRX Series Services Gateways may allow an attacker to bypass Juniper Deep Packet Inspection (JDPI) rules and access unauthorized networks or resources, when 'no-syn-check' is enabled on the device. While JDPI correctly classifies out-of-state asymmetric TCP flows as the dynamic-application UNKNOWN, this classification is not provided to the policy module properly and hence traffic continues to use the pre-id-default-policy, which is more permissive, causing the firewall to allow traffic to be forwarded that should have been denied. This issue only occurs when 'set security flow tcp-session no-syn-check' is configured on the device. This issue affects Juniper Networks Junos OS on SRX Series: 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1."}, {"lang": "es", "value": "Una vulnerabilidad en la clasificaci\u00f3n del tr\u00e1fico en el Sistema Operativo Junos de Juniper Networks en las Puertas de Enlace de Servicios de la serie SRX puede permitir a un atacante omitir las reglas de inspecci\u00f3n profunda de paquetes de Juniper (JDPI) y acceder a redes o recursos no autorizados, cuando est\u00e1 habilitada la opci\u00f3n \"no-syn-check\" en el dispositivo. Mientras que JDPI clasifica correctamente los flujos TCP asim\u00e9tricos fuera de estado como la aplicaci\u00f3n din\u00e1mica UNKNOWN, esta clasificaci\u00f3n no es proporcionada al m\u00f3dulo de pol\u00edticas correctamente y, por tanto, el tr\u00e1fico sigue usando la pol\u00edtica previa al ID predeterminado, que es m\u00e1s permisiva, lo que causa que el firewall permita el reenv\u00edo de tr\u00e1fico que deber\u00eda haberse denegado. Este problema s\u00f3lo es producida cuando \"set security flow tcp-session no-syn-check\" est\u00e1 configurado en el dispositivo. Este problema afecta al Sistema Operativo Junos de Juniper Networks en la serie SRX versiones: 18.4 versiones anteriores a 18.4R2-S10, 18.4R3-S10; 19.1 versiones anteriores a 19.1R3-S8; 19.2 versiones anteriores a 19.2R1-S8, 19.2R3-S4; versiones 19.3 anteriores a 19.3R3-S3; versiones 19.4 anteriores a 19.4R3-S5; versiones 20.1 anteriores a 20.1R3-S1; versiones 20.2 anteriores a 20.2R3-S2; versiones 20.3 anteriores a 20.3R3-S1; versiones 20.4 anteriores a 20.4R2-S2, 20.4R3; versiones 21.1 anteriores a 21.1R2-S2, 21.1R3; versiones 21.2 anteriores a 21.2R2. Este problema no afecta a versiones del Sistema Operativo Junos de Juniper Networks anteriores a 18.4R1"}], "id": "CVE-2022-22167", "lastModified": "2024-11-21T06:46:18.000", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.7, "source": "sirt@juniper.net", "type": "Secondary"}, {"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"}]}, "published": "2022-01-19T01:15:08.907", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11265"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11265"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

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