Rewterz Threat Advisory – Multiple Citrix ADC and Gateway Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-3467 CVSS:8

Citrix ADC and Gateway could allow a remote authenticated attacker from within the local network gain elevated privileges on the system. An attacker could exploit this vulnerability to gain root privileges on the system.

CVE-2023-3466 CVSS:8.3

Citrix ADC and Gateway are vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.

CVE-2023-3519 CVSS:9.8

Citrix ADC and Gateway could allow a remote attacker to execute arbitrary code on the system. If configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA?virtual?server, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Impact

• Privilege Escalation
• Cross-Site Scripting
• Code Execution

Indicators Of Compromise

CVE

• CVE-2023-3467
• CVE-2023-3466
• CVE-2023-3519

Affected Vendors

Citrix

Affected Products

• Citrix NetScaler Gateway 12.1
• Citrix ADC 12.1
• Citrix ADC 12.1-FIPS
• Citrix ADC 12.1-NDcPP

Remediation

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

Citrix Security Advisory