CVE-2018-3878

Multiple exploitable buffer overflow vulnerabilities exist in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. A strncpy overflows the destination buffer, which has a size of 16 bytes. An attacker can send an arbitrarily long "region" value in order to exploit this vulnerability.

CVSS v3 9.9 CRITICAL
CVSS v2.0 9.0 HIGH

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555	Exploit Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:*

cpe:2.3:h:samsung:sth-eth-250:-:*:*:*:*:*:*:*

History

21 Nov 2024, 04:06

Type	Values Removed	Values Added
References	~~() https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555 - Exploit, Third Party Advisory~~	() https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555 - Exploit, Third Party Advisory

Information

Published : 2018-08-23 15:29

Updated : 2024-11-21 04:06

NVD link : CVE-2018-3878

Mitre link : CVE-2018-3878

CVE.ORG link : CVE-2018-3878

JSON object : View

Products Affected

samsung

sth-eth-250_firmware
sth-eth-250

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

{"id": "CVE-2018-3878", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "talos-cna@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}]}, "published": "2018-08-23T15:29:00.867", "references": [{"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555", "tags": ["Exploit", "Third Party Advisory"], "source": "talos-cna@cisco.com"}, {"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0555", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "Multiple exploitable buffer overflow vulnerabilities exist in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. A strncpy overflows the destination buffer, which has a size of 16 bytes. An attacker can send an arbitrarily long \"region\" value in order to exploit this vulnerability."}, {"lang": "es", "value": "Existen m\u00faltiples desbordamientos de b\u00fafer explotables en el manipulador de credenciales del servidor HTTP de video-core de los dispositivos Samsung SmartThings Hub STH-ETH-250 en su versi\u00f3n de firmware 0.20.17. El proceso video-core extrae incorrectamente campos de una carga \u00fatil JSON controlada por el usuario, conduciendo a un desbordamiento de b\u00fafer en la pila. Un strncpy desborda el b\u00fafer de destino, el cual tiene un tama\u00f1o de 16 bytes. Un atacante puede enviar un valor \"region\" arbitrariamente largo para explotar esta vulnerabilidad."}], "lastModified": "2024-11-21T04:06:13.360", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69ED63CA-72C3-4337-B1ED-1696DB316B0F"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:samsung:sth-eth-250:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4B42493E-7140-4A19-B94A-2F6262D0BCDA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "talos-cna@cisco.com"}