CVE-2021-43206

A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://fortiguard.com/psirt/FG-IR-21-231	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	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

13 May 2022, 02:49

Type	Values Removed	Values Added
CWE		CWE-209
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.3 v3 : 4.3
References	~~(CONFIRM) https://fortiguard.com/psirt/FG-IR-21-231 -~~	(CONFIRM) https://fortiguard.com/psirt/FG-IR-21-231 - Vendor Advisory
CPE		cpe:2.3:a:fortinet:fortiproxy:::::::: cpe:2.3:o:fortinet:fortios::::::::

04 May 2022, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-05-04 16:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-43206

Mitre link : CVE-2021-43206

CVE.ORG link : CVE-2021-43206

JSON object : View

Products Affected

fortinet

fortiproxy
fortios

CWE

CWE-209

Generation of Error Message Containing Sensitive Information

{"id": "CVE-2021-43206", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "psirt@fortinet.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "published": "2022-05-04T16:15:08.227", "references": [{"url": "https://fortiguard.com/psirt/FG-IR-21-231", "tags": ["Vendor Advisory"], "source": "psirt@fortinet.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-209"}]}], "descriptions": [{"lang": "en", "value": "A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages."}, {"lang": "es", "value": "Un mensaje de error generado por el servidor que contiene informaci\u00f3n confidencial en Fortinet FortiOS 7.0.0 a 7.0.3, 6.4.0 a 6.4.8, 6.2.x, 6.0.x y FortiProxy 7.0.0 a 7.0.1, 2.0.x, permite a servidores web maliciosos recuperar el nombre de usuario y la IP del cliente de un proxy web por medio de peticiones HTTP del mismo origen que provocan p\u00e1ginas de c\u00f3digos de estado HTTP generadas por el proxy"}], "lastModified": "2022-05-13T02:49:11.607", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96161EB8-2DFC-488B-B24D-80DA3B52E5B1", "versionEndExcluding": "2.0.9", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EFEA53FA-16E1-4CDB-933C-2F886CAB15DA", "versionEndExcluding": "7.0.2", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "104926CC-BE94-41EF-98E5-F565A6EAADD4", "versionEndExcluding": "6.0.14", "versionStartIncluding": "5.6.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8EE47BA6-6F1B-40E9-8FE5-5752389875DF", "versionEndExcluding": "6.2.10", "versionStartIncluding": "6.2.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "986D96D1-B204-48FC-8852-BB8341941236", "versionEndExcluding": "6.4.8", "versionStartIncluding": "6.4.0"}, {"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "30F10D70-1176-4119-BF1A-C2A5FCA386D4", "versionEndExcluding": "7.0.4", "versionStartIncluding": "7.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@fortinet.com"}