CVE-2021-21367

{"id": "CVE-2021-21367", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 5.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "published": "2021-03-12T17:15:12.753", "references": [{"url": "https://github.com/elementary/switchboard-plug-bluetooth/commit/86500e645a907538abafe5225b67cc12c03e7645", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/elementary/switchboard-plug-bluetooth/releases/tag/2.3.5", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/elementary/switchboard-plug-bluetooth/security/advisories/GHSA-5p3g-j69g-w2mq", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV7WKO5SZHTF3QEMX4WZ576HRECIG6VQ/", "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7TCGM4B45VLUJDCE5PHFYA5KBNHD4RA/", "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SWUPPVFG76PXQA3AHSGKYPRMVZ5AYHZI/", "source": "security-advisories@github.com"}, {"url": "https://github.com/elementary/switchboard-plug-bluetooth/commit/86500e645a907538abafe5225b67cc12c03e7645", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/elementary/switchboard-plug-bluetooth/releases/tag/2.3.5", "tags": ["Release Notes", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/elementary/switchboard-plug-bluetooth/security/advisories/GHSA-5p3g-j69g-w2mq", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV7WKO5SZHTF3QEMX4WZ576HRECIG6VQ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7TCGM4B45VLUJDCE5PHFYA5KBNHD4RA/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SWUPPVFG76PXQA3AHSGKYPRMVZ5AYHZI/", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "Switchboard Bluetooth Plug for elementary OS from version 2.3.0 and before version version 2.3.5 has an incorrect authorization vulnerability. When the Bluetooth plug is running (in discoverable mode), Bluetooth service requests and pairing requests are automatically accepted, allowing physically proximate attackers to pair with a device running an affected version of switchboard-plug-bluetooth without the active consent of the user. By default, elementary OS doesn't expose any services via Bluetooth that allow information to be extracted by paired Bluetooth devices. However, if such services (i.e. contact list sharing software) have been installed, it's possible that attackers have been able to extract data from such services without authorization. If no such services have been installed, attackers are only able to pair with a device running an affected version without authorization and then play audio out of the device or possibly present a HID device (keyboard, mouse, etc...) to control the device. As such, users should check the list of trusted/paired devices and remove any that are not 100% confirmed to be genuine. This is fixed in version 2.3.5. To reduce the likelihood of this vulnerability on an unpatched version, only open the Bluetooth plug for short intervals when absolutely necessary and preferably not in crowded public areas. To mitigate the risk entirely with unpatched versions, do not open the Bluetooth plug within switchboard at all, and use a different method for pairing devices if necessary (e.g. `bluetoothctl` CLI)."}, {"lang": "es", "value": "Switchboard Bluetooth Plug para el SO elementary desde la versi\u00f3n 2.3.0 y versiones anteriores a 2.3.5, presenta una vulnerabilidad de autorizaci\u00f3n incorrecta. Cuando Bluetooth plug se est\u00e1 ejecutando (en modo detectable), unas peticiones de servicio de Bluetooth y las peticiones de emparejamiento se aceptan autom\u00e1ticamente, lo que permite a atacantes cercanos f\u00edsicamente emparejarse con un dispositivo que ejecuta una versi\u00f3n afectada de switchboard-plug-bluetooth sin el consentimiento activo del usuario. De forma predeterminada, el Sistema Operativo elementary no expone ning\u00fan servicio por medio de Bluetooth que permita que los dispositivos Bluetooth emparejados extraigan informaci\u00f3n. Sin embargo, si se han instalado dichos servicios (es decir, software para compartir listas de contactos), es posible que los atacantes han sido capaces de extraer datos de dichos servicios sin autorizaci\u00f3n. Si no se han instalado tales servicios, los atacantes solo pueden emparejarse con un dispositivo que ejecuta una versi\u00f3n afectada sin autorizaci\u00f3n y luego reproducir audio desde el dispositivo o posiblemente presentar un dispositivo HID (teclado, mouse, etc.) para controlar el dispositivo. Como tal, los usuarios deben verificar la lista de dispositivos confiables, emparejados y eliminar los que no est\u00e9n 100% confirmados como genuinos. Esto es corregido en la versi\u00f3n 2.3.5. Para reducir la probabilidad de esta vulnerabilidad en una versi\u00f3n sin parches, solo abra el plug de Bluetooth durante intervalos cortos cuando sea absolutamente necesario y preferiblemente no en \u00e1reas p\u00fablicas concurridas. Para mitigar el riesgo por completo con las versiones no parcheadas, no abra el plug de Bluetooth dentro de la switchboard y use un m\u00e9todo diferente para emparejar dispositivos si es necesario (por ejemplo, CLI \"bluetoothctl\")"}], "lastModified": "2024-11-21T05:48:12.617", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elementary:switchboard_bluetooth_plug:*:*:*:*:*:elementary_os:*:*", "vulnerable": true, "matchCriteriaId": "AC2A9759-1C40-4C89-AD5B-AEBEBF1931A6", "versionEndExcluding": "2.3.5", "versionStartIncluding": "2.3.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}