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Rewterz Threat Advisory – Multiple Vulnerabilities of Citrix ADC and Gateway

Severity

High

Analysis Summary

CVE-2020-8300

Citrix ADC and Gateway could allow a remote attacker to bypass security restrictions, caused by a flaw when SAML configuration is not configured to the recommended settings. By utilize phishing attack techniques, an attacker could exploit this vulnerability to hijack a valid user session.

CVE-2020-8299

Citrix ADC, Gateway and SD-WAN WANOP are vulnerable to a denial of service, caused by an uncontrolled resource consumption flaw. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition within the same Layer 2 network segment.

Impact

  • Bypass Security
  • Denial of Service

Affected Vendors

  • Citrix NetScaler Gateway
  • Citrix Gateway
  • Citrix ADC

Affected Products

  • Citrix NetScaler Gateway 11.1
  • Citrix Gateway 12.1
  • Citrix Gateway 13.0
  • Citrix ADC 11.1
  • Citrix ADC 12.1
  • Citrix ADC 13.0

Remediation

Refer to CTX297155 for patch, upgrade or suggested workaround information.

https://support.citrix.com/article/CTX297155