CVE-2021-22920

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

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, podrían conllevar a un ataque de phishing mediante un secuestro de autenticación SAML para robar una sesión de usuario válida

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2021-08-05 CVE Published
2024-04-20 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.citrix.com/article/CTX319135	2021-08-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Citrix Search vendor "Citrix"		Application Delivery Management Search vendor "Citrix" for product "Application Delivery Management"				12.1-62.25 Search vendor "Citrix" for product "Application Delivery Management" and version "12.1-62.25"		-		Affected
Citrix Search vendor "Citrix"		Application Delivery Management Search vendor "Citrix" for product "Application Delivery Management"				13.0-82.42 Search vendor "Citrix" for product "Application Delivery Management" and version "13.0-82.42"		-		Affected
Citrix Search vendor "Citrix"		Gateway Search vendor "Citrix" for product "Gateway"				12.1-62.25 Search vendor "Citrix" for product "Gateway" and version "12.1-62.25"		-		Affected
Citrix Search vendor "Citrix"		Gateway Search vendor "Citrix" for product "Gateway"				13.0-82.42 Search vendor "Citrix" for product "Gateway" and version "13.0-82.42"		-		Affected