Citrix ADVISORY:
Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance Security Update

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Citrix has announced multiple vulnerabilities have been discovered in Citrix ADC (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP appliance models 4000-WO, 4100-WO, 5000-WO, and 5100-WO.

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Description of Problem

Multiple vulnerabilities have been discovered in Citrix ADC (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP appliance models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could result in the following security issues:

CVE IDDescriptionVulnerability TypeAffected ProductsPre-conditions
CVE-2020-8245An HTML Injection attack against the SSL VPN web portal CWE-79: Improper Neutralization of Input During Web Page GenerationCitrix ADC, Citrix GatewayRequires an authenticated victim on the SSL VPN web portal who must open an attacker-controlled link in the browser
CVE-2020-8246A denial of service attack originating from the management network CWE-400: Uncontrolled Resource Consumption Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OPUnauthenticated attacker with access to the management network
CVE-2020-8247Escalation of privileges on the management interfaceCWE-269: Improper Privilege ManagementCitrix ADC, Citrix Gateway, Citrix SDWAN WAN-OPAn attacker must possess privilege to execute arbitrary commands on the management interface

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