CVE-2020-15936

A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows attacker to disclose sensitive information via SNI Client Hello TLS packets.

CVSS v3 4.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://fortiguard.com/advisory/FG-IR-20-091	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::

History

12 Jul 2022, 17:42

Type	Values Removed	Values Added
CWE	~~CWE-668~~	CWE-20

09 Mar 2022, 14:07

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.0 v3 : 4.5
References	~~(CONFIRM) https://fortiguard.com/advisory/FG-IR-20-091 -~~	(CONFIRM) https://fortiguard.com/advisory/FG-IR-20-091 - Vendor Advisory
CWE		CWE-668
CPE		cpe:2.3:o:fortinet:fortios::::::::

01 Mar 2022, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-03-01 19:15

Updated : 2024-02-04 22:29

NVD link : CVE-2020-15936

Mitre link : CVE-2020-15936

CVE.ORG link : CVE-2020-15936

JSON object : View

Products Affected

fortinet

fortios

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2020-15936", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 0.9}, {"type": "Secondary", "source": "psirt@fortinet.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 2.6, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.0}]}, "published": "2022-03-01T19:15:08.097", "references": [{"url": "https://fortiguard.com/advisory/FG-IR-20-091", "tags": ["Vendor Advisory"], "source": "psirt@fortinet.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows attacker to disclose sensitive information via SNI Client Hello TLS packets."}, {"lang": "es", "value": "Una comprobaci\u00f3n de entrada inapropiada en Fortinet FortiGate versiones 6.4.3 y anteriores, versiones 6.2.5 y anteriores, versiones 6.0.11 y anteriores, versiones 5.6.13 y anteriores, permite a un atacante revelar informaci\u00f3n confidencial por medio de paquetes SNI Client Hello TLS."}], "lastModified": "2022-07-12T17:42:04.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7E239D7B-8B65-4639-9390-F62C5A584B18", "versionEndIncluding": "5.6.13", "versionStartIncluding": "5.6.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "91921D15-AC8B-4303-BF4B-32FC53B9EB53", "versionEndIncluding": "6.0.11", "versionStartIncluding": "6.0.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2B9C172-F8C6-416C-ADB9-AF893FB0A78C", "versionEndIncluding": "6.2.5", "versionStartIncluding": "6.2.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FF4B21C8-D766-40AF-82F3-924210471D04", "versionEndIncluding": "6.4.3", "versionStartIncluding": "6.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@fortinet.com"}