CVE-2024-1638

The documentation specifies that the BT_GATT_PERM_READ_LESC and BT_GATT_PERM_WRITE_LESC defines for a Bluetooth characteristic: Attribute read/write permission with LE Secure Connection encryption. If set, requires that LE Secure Connections is used for read/write access, however this is only true when it is combined with other permissions, namely BT_GATT_PERM_READ_ENCRYPT/BT_GATT_PERM_READ_AUTHEN (for read) or BT_GATT_PERM_WRITE_ENCRYPT/BT_GATT_PERM_WRITE_AUTHEN (for write), if these additional permissions are not set (even in secure connections only mode) then the stack does not perform any permission checks on these characteristics and they can be freely written/read.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2	Exploit Vendor Advisory
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

History

17 Jan 2025, 16:26

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
First Time		Zephyrproject zephyr Zephyrproject
References	~~() https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2 -~~	() https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2 - Exploit, Vendor Advisory
CPE		cpe:2.3:o:zephyrproject:zephyr::::::::

21 Nov 2024, 08:50

Type	Values Removed	Values Added
References	~~() https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2 -~~	() https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2 -

19 Feb 2024, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-02-19 22:15

Updated : 2025-01-17 16:26

NVD link : CVE-2024-1638

Mitre link : CVE-2024-1638

CVE.ORG link : CVE-2024-1638

JSON object : View

Products Affected

zephyrproject

zephyr

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

{"id": "CVE-2024-1638", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "vulnerabilities@zephyrproject.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/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": 3.9}]}, "published": "2024-02-19T22:15:48.837", "references": [{"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2", "tags": ["Exploit", "Vendor Advisory"], "source": "vulnerabilities@zephyrproject.org"}, {"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p6f3-f63q-5mc2", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "vulnerabilities@zephyrproject.org", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "The documentation specifies that the BT_GATT_PERM_READ_LESC and BT_GATT_PERM_WRITE_LESC defines for a Bluetooth characteristic: Attribute read/write permission with LE Secure Connection encryption. If set, requires that LE Secure Connections is used for read/write access, however this is only true when it is combined with other permissions, namely BT_GATT_PERM_READ_ENCRYPT/BT_GATT_PERM_READ_AUTHEN (for read) or BT_GATT_PERM_WRITE_ENCRYPT/BT_GATT_PERM_WRITE_AUTHEN (for write), if these additional permissions are not set (even in secure connections only mode) then the stack does not perform any permission checks on these characteristics and they can be freely written/read."}, {"lang": "es", "value": "La documentaci\u00f3n especifica que BT_GATT_PERM_READ_LESC y BT_GATT_PERM_WRITE_LESC definen para una caracter\u00edstica de Bluetooth: Atributo permiso de lectura/escritura con cifrado LE Secure Connection. Si est\u00e1 configurado, requiere que se utilice LE Secure Connections para acceso de lectura/escritura; sin embargo, esto solo es cierto cuando se combina con otros permisos, a saber, BT_GATT_PERM_READ_ENCRYPT/BT_GATT_PERM_READ_AUTHEN (para lectura) o BT_GATT_PERM_WRITE_ENCRYPT/BT_GATT_PERM_WRITE_AUTHEN (para escritura), si estos permisos adicionales no est\u00e1n configurados (incluso en el modo de solo conexiones seguras), entonces la pila no realiza ninguna verificaci\u00f3n de permisos sobre estas caracter\u00edsticas y se pueden escribir/leer libremente."}], "lastModified": "2025-01-17T16:26:03.767", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEE5CEE1-7062-4E23-A3F2-D01DC14968AD", "versionEndIncluding": "3.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "vulnerabilities@zephyrproject.org"}