{"id": "CVE-2021-31642", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:C", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-06-01T15:15:07.717", "references": [{"url": "http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.chiyu-tech.com/msg/message-Firmware-update-87.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.chiyu-tech.com/msg/message-Firmware-update-87.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631, and SEMAC. The vulnerability can be explored by sending an unexpected integer (> 32 bits) on the page parameter that will crash the web portal and making it unavailable until a reboot of the device."}, {"lang": "es", "value": "Se presenta una condici\u00f3n de denegaci\u00f3n de servicio tras un desbordamiento de enteros en varios dispositivos IoT de CHIYU Technology, incluyendo BIOSENSE, Webpass, y BF-630, BF-631, y SEMAC. La vulnerabilidad puede ser explorada mediante el env\u00edo de un entero inesperado (superiores a 32 bits) en el par\u00e1metro page que bloquear\u00e1 el portal web y har\u00e1 que no est\u00e9 disponible hasta un reinicio del dispositivo"}], "lastModified": "2024-11-21T06:06:03.857", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:chiyu-tech:semac_s2_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E605EBAB-D5F9-43A8-8096-DA62A4295A92"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:chiyu-tech:semac_s2:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BDAC8B2A-8AB4-4EAB-84D5-526F89C8D9B6"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:chiyu-tech:semac_d1_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4B14981-FCEA-45FC-896F-7677BEB7A8FB"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": 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