Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-4967
CVE-2023-4967:
Citrix ADC VPX vulnerability analysis and mitigation
Overview
CVE-2023-4967 is a vulnerability affecting Citrix NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server. The vulnerability was disclosed on October 10, 2023, and affects multiple versions of these products (CISA Alert).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (High) by NIST with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, while Citrix Systems assessed it with a score of 8.2 (High) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H. The vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) (NVD).
Impact
If successfully exploited, this vulnerability could allow an unauthenticated attacker to perform a denial of service attack on the affected appliance, potentially causing system unavailability (Rapid7).
Mitigation and workarounds
Citrix has released security updates to address this vulnerability. Users are advised to upgrade to the following versions: 13.0-92.19 or later, 13.1-49.15 or later, and 14.1-8.50 or later (NVD).
Additional resources
Source: This report was generated using AI
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