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Citrix Critical Security Advisory - 20240117006

Overview

Citrix have released a security advisory for CVE-2023-6548 affecting NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway).

What is the vulnerability?

CVE ID CVSS Score Description Dated
CVE-2023-6548 5.5 Authenticated (low privileged) remote code execution on Management Interface
CVE-2023-6549 8.2 Denial of Service
Note: NetScaler ADC and NetScaler Gateway version 12.1 is now End Of Life (EOL) and is vulnerable. 10 May, 2024

What is vulnerable?

The following products and versions are affected:

  • NetScaler ADC and NetScaler Gateway 14.1 before 14.1-12.35
  • NetScaler ADC and NetScaler Gateway 13.1 before 13.1-51.15
  • NetScaler ADC and NetScaler Gateway 13.0 before 13.0-92.21
  • NetScaler ADC 13.1-FIPS before 13.1-37.176
  • NetScaler ADC 12.1-FIPS before 12.1-55.302
  • NetScaler ADC 12.1-NDcPP before 12.1-55.302

What has been observed?

Citrix has observed exploits of these CVEs on unmitigated appliances.

Recommendation

The WA SOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframe of 48 Hours... (refer Patch Management):