CVE-2018-20378

The L2CAP signaling channel implementation and SDP server implementation in OpenSynergy Blue SDK 3.2 through 6.0 allow remote, unauthenticated attackers to execute arbitrary code or cause a denial of service via malicious L2CAP configuration requests, in conjunction with crafted SDP communication over maliciously configured L2CAP channels. The attacker must have connectivity over the Bluetooth physical layer, and must be able to send raw L2CAP frames. This is related to L2Cap_HandleConfigReq in core/stack/l2cap/l2cap_sm.c and SdpServHandleServiceSearchAttribReq in core/stack/sdp/sdpserv.c.

CVSS v3 7.5 HIGH
CVSS v2.0 5.4 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.6 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 5.5 / Impact : 6.4

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.cymotive.com/wp-content/uploads/2019/03/Hell2CAP-0day.pdf	Exploit Third Party Advisory
https://www.opensynergy.com/news/security/bluesdk-advisory2018003/	Vendor Advisory
https://www.cymotive.com/wp-content/uploads/2019/03/Hell2CAP-0day.pdf	Exploit Third Party Advisory
https://www.opensynergy.com/news/security/bluesdk-advisory2018003/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:opensynergy:blue_sdk::::::::
	cpe:2.3:a:opensynergy:blue_sdk::::::::

History

No history.

Information

Published : 2019-03-29 15:29

Updated : 2024-11-21 04:01

NVD link : CVE-2018-20378

Mitre link : CVE-2018-20378

CVE.ORG link : CVE-2018-20378

JSON object : View

Products Affected

opensynergy

blue_sdk

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2018-20378", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.4, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 5.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}]}, "published": "2019-03-29T15:29:00.510", "references": [{"url": "https://www.cymotive.com/wp-content/uploads/2019/03/Hell2CAP-0day.pdf", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.opensynergy.com/news/security/bluesdk-advisory2018003/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.cymotive.com/wp-content/uploads/2019/03/Hell2CAP-0day.pdf", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.opensynergy.com/news/security/bluesdk-advisory2018003/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "The L2CAP signaling channel implementation and SDP server implementation in OpenSynergy Blue SDK 3.2 through 6.0 allow remote, unauthenticated attackers to execute arbitrary code or cause a denial of service via malicious L2CAP configuration requests, in conjunction with crafted SDP communication over maliciously configured L2CAP channels. The attacker must have connectivity over the Bluetooth physical layer, and must be able to send raw L2CAP frames. This is related to L2Cap_HandleConfigReq in core/stack/l2cap/l2cap_sm.c and SdpServHandleServiceSearchAttribReq in core/stack/sdp/sdpserv.c."}, {"lang": "es", "value": "La implementaci\u00f3n de canales de se\u00f1alizaci\u00f3n L2CAP y del servidor SDP en OpenSynergy Blue SDK, desde la versi\u00f3n 3.2 hasta la 6.0, permite a los atacantes remotos no autenticados ejecutar c\u00f3digo arbitrario o causar una denegaci\u00f3n de servicio (DoS) mediante peticiones de configuraci\u00f3n L2CAP, en conjunto con la comunicaci\u00f3n SDP sobre canales L2CAP configurados de manera maliciosa. El atacante deber\u00e1 tener conectividad sobre la capa Bluetooth f\u00edsica y ser capaz de enviar tramas L2CAP brutas. Esto est\u00e1 relacionado con L2Cap_HandleConfigReq en core/stack/l2cap/l2cap_sm.c y SdpServHandleServiceSearchAttribReq en core/stack/sdp/sdpserv.c."}], "lastModified": "2024-11-21T04:01:21.563", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:opensynergy:blue_sdk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6CF960EA-87CB-4993-8202-95293F237BC7", "versionEndIncluding": "5.5.3", "versionStartIncluding": "3.2"}, {"criteria": "cpe:2.3:a:opensynergy:blue_sdk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "01FDF05B-C25D-4A72-9CD9-65B375200F7C", "versionEndExcluding": "6.0.1", "versionStartIncluding": "6.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}