CVE-2021-22920

A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to a phishing attack through a SAML authentication hijack to steal a valid user session.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

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://support.citrix.com/article/CTX319135	Vendor Advisory
https://support.citrix.com/article/CTX319135	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:citrix:application_delivery_management:12.1-62.25:::::::*
	cpe:2.3:a:citrix:application_delivery_management:13.0-82.42:::::::*
	cpe:2.3:a:citrix:gateway:12.1-62.25:::::::*
	cpe:2.3:a:citrix:gateway:13.0-82.42:::::::*

History

21 Nov 2024, 05:50

Type	Values Removed	Values Added
References	~~() https://support.citrix.com/article/CTX319135 - Vendor Advisory~~	() https://support.citrix.com/article/CTX319135 - Vendor Advisory

Information

Published : 2021-08-05 21:15

Updated : 2024-11-21 05:50

NVD link : CVE-2021-22920

Mitre link : CVE-2021-22920

CVE.ORG link : CVE-2021-22920

JSON object : View

Products Affected

citrix

application_delivery_management
gateway

CWE

CWE-284

Improper Access Control

NVD-CWE-noinfo

{"id": "CVE-2021-22920", "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": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-08-05T21:15:11.083", "references": [{"url": "https://support.citrix.com/article/CTX319135", "tags": ["Vendor Advisory"], "source": "support@hackerone.com"}, {"url": "https://support.citrix.com/article/CTX319135", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "support@hackerone.com", "description": [{"lang": "en", "value": "CWE-284"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to a phishing attack through a SAML authentication hijack to steal a valid user session."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad en Citrix ADC (antes conocido como NetScaler ADC) y Citrix Gateway (antes conocido como NetScaler Gateway), y en los modelos 4000-WO, 4100-WO, 5000-WO y 5100-WO de Citrix SD-WAN WANOP Edition. Estas vulnerabilidades, si son explotadas, podr\u00edan conllevar a un ataque de phishing mediante un secuestro de autenticaci\u00f3n SAML para robar una sesi\u00f3n de usuario v\u00e1lida"}], "lastModified": "2024-11-21T05:50:55.027", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:citrix:application_delivery_management:12.1-62.25:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DE311F5F-CD6A-4539-9941-B7F301BD29C3"}, {"criteria": "cpe:2.3:a:citrix:application_delivery_management:13.0-82.42:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ECDB150A-DC10-4C05-A75A-5EA94E3AE84D"}, {"criteria": "cpe:2.3:a:citrix:gateway:12.1-62.25:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20180A94-DDD7-4EC0-9636-158B935B0938"}, {"criteria": "cpe:2.3:a:citrix:gateway:13.0-82.42:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3FF01A30-0E92-43CD-B1BE-B2051EF7B0A6"}], "operator": "OR"}]}], "sourceIdentifier": "support@hackerone.com"}