fkie_cve-2021-31251
Vulnerability from fkie_nvd
Published
2021-06-04 21:15
Modified
2024-11-21 06:05
Severity ?
Summary
An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially malformed request and an attacker may force the remote telnet server to believe that the user has already authenticated.
References
Impacted products
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"es", "value": "Una omisi\u00f3n de autenticaci\u00f3n en el servidor telnet de los convertidores TCP/IP BF-430 y BF431 232/422, BF-450M y SEMAC de CHIYU Technology Inc,. permite obtener una conexi\u00f3n privilegiada con el dispositivo de destino al suministrar una petici\u00f3n especialmente malformada y un atacante puede forzar al servidor telnet remoto a creer que el usuario ya se ha autenticado" } ], "id": "CVE-2021-31251", "lastModified": "2024-11-21T06:05:22.107", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "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": "2021-06-04T21:15:07.517", "references": [ { "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ], "url": "https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31251" }, { "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ], "url": "https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/#.YLqK1KhKguU" }, { "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ], "url": "https://www.chiyu-tech.com/msg/message-Firmware-update-87.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory" ], "url": "https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31251" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory" ], "url": "https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/#.YLqK1KhKguU" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://www.chiyu-tech.com/msg/message-Firmware-update-87.html" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-287" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.