Code Injection in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2023-3519
Published: July 19, 2023 / Updated: September 20, 2024
Vulnerability identifier: #VU78373
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2023-3519
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Citrix
Affected software:
Citrix Netscaler ADC
Citrix NetScaler Gateway
Citrix Netscaler ADC
Citrix NetScaler Gateway
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation when the appliance is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server. A remote non-authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, the vulnerability is being actively exploited in the wild.
How to mitigate CVE-2023-3519
Install update from vendor's website.