{"containers": {"cna": {"affected": [{"product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "18.1R1", "status": "unaffected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "18.1R3-S11", "status": "affected", "version": "18.1", "versionType": "custom"}, {"lessThan": "18.2R3-S5", "status": "affected", "version": "18.2", "versionType": "custom"}, {"lessThan": "18.3R2-S4, 18.3R3-S3", "status": "affected", "version": "18.3", "versionType": "custom"}, {"lessThan": "18.4R2-S5, 18.4R3-S3", "status": "affected", "version": "18.4", "versionType": "custom"}, {"lessThan": "19.1R2-S2, 19.1R3-S2", "status": "affected", "version": "19.1", "versionType": "custom"}, {"lessThan": "19.2R1-S5, 19.2R2", "status": "affected", "version": "19.2", "versionType": "custom"}, {"lessThan": "19.3R3", "status": "affected", "version": "19.3", "versionType": "custom"}, {"lessThan": "19.4R1-S3, 19.4R2, 19.4R3", "status": "affected", "version": "19.4", "versionType": "custom"}, {"lessThan": "20.1R1-S2, 20.1R2", "status": "affected", "version": "20.1", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "The following minimal configuration is necessary: \n\n [system services web-management http]\nor\n [system services web-management https]"}], "credits": [{"lang": "en", "value": " The Juniper SIRT wishes to thank Luca Ercoli for responsibly reporting one of the issues resolved in this update."}], "datePublic": "2021-04-14T00:00:00", "descriptions": [{"lang": "en", "value": "An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the device without authentication. 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The weakness can be exploited to facilitate cross-site scripting (XSS), cookie manipulation (modifying session cookies, stealing cookies) and more. This weakness can also be exploited by directing a user to a seemingly legitimate link from the affected site. The attacker requires no special access or permissions to the device to carry out such attacks. This issue affects: Juniper Networks Junos OS: 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S3; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.1R1."}, {"lang": "es", "value": "Una Neutralizaci\u00f3n Inapropiada de las Secuencias CRLF en una debilidad de los Encabezados HTTP (''HTTP Response Splitting\") en J-web del Sistema Operativo Juniper Networks Junos conlleva a unos desbordamientos de b\u00fafer, fallos de segmento u otros impactos, permitiendo a un atacante modificar la integridad del dispositivo y informaci\u00f3n de exfiltraci\u00f3n del dispositivo sin autenticaci\u00f3n.&#xa0;La debilidad puede ser explotada para facilitar el ataque de tipo cross-site scripting (XSS), la manipulaci\u00f3n de cookies (modificaci\u00f3n de cookies de sesi\u00f3n, robo de cookies) y m\u00e1s.&#xa0;Esta debilidad tambi\u00e9n puede ser explotada al direccionar a un usuario hacia un enlace aparentemente leg\u00edtimo del sitio afectado.&#xa0;El atacante no requiere acceso o permisos especiales al dispositivo para llevar a cabo tales ataques.&#xa0;Este problema afecta a: Juniper Networks Junos OS: versiones 18.1 anteriores a 18.1R3-S11;&#xa0;versiones 18.2 anteriores a 18.2R3-S5;&#xa0;versiones 18.3 anteriores a 18.3R2-S4, 18.3R3-S3;&#xa0;versiones 18.&#xa0;4 anteriores a 18.4R2-S5, 18.4R3-S3;&#xa0;versiones 19.1 anteriores a 19.1R2-S2, 19.1R3-S2;&#xa0;versiones 19.2 anteriores a 19.2R1-S5, 19.2R2;&#xa0;versiones 19.3 anteriores a 19.3R3;&#xa0;versiones 19.4 anteriores a 19.4R1-S3, 19.4R2, 19.4R3;&#xa0;versiones 20.1 anteriores a 20.1R1-S2, 20.1R2.&#xa0;Este problema no afecta a las versiones de Juniper Networks Junos OS versiones anteriores a 18.1R1"}], "id": "CVE-2021-0268", "lastModified": "2022-08-05T17:14:19.220", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.3, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2021-04-22T20:15:09.943", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11159"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-113"}, {"lang": "en", "value": "CWE-120"}, {"lang": "en", "value": "CWE-79"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

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