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Rewterz Threat Advisory – Multiple Citrix NetScaler ADC and NetScaler Gateway Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-4966 CVSS:9.4

Citrix NetScaler ADC and NetScaler Gateway could allow a remote attacker to obtain sensitive information. If configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server, an attacker could exploit this vulnerability to obtain sensitive information.

CVE-2023-4967 CVSS:8.2

Citrix NetScaler ADC and NetScaler Gateway are vulnerable to a denial of service. If configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server, an attacker could exploit this vulnerability to cause a denial of service.

Impact

  • Information Disclosure 
  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2023-4966
  • CVE-2023-4967

Affected Vendors

Citrix

Affected Products

  • Citrix NetScaler ADC 14.1
  • Citrix NetScaler Gateway 13.1
  • Citrix NetScaler Gateway 13.0
  • Citrix NetScaler ADC 13.0
  • Citrix NetScaler ADC 13.1
  • Citrix NetScaler ADC 13.1-FIPS
  • Citrix NetScaler ADC 12.1-NDcPP
  • Citrix NetScaler ADC 12.1-FIPS

Remediation

Refer to Citrix Security Advisory for patch, upgrade or suggested workaround information.

Citrix Security Advisory