#VU85435 Code Injection in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2023-6548

Vulnerability identifier: #VU85435

Vulnerability risk: High

CVSSv4.0: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2023-6548

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Citrix Netscaler ADC
Client/Desktop applications / Software for system administration
Citrix NetScaler Gateway
Server applications / Application servers

Vendor: Citrix

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation within the management interface. A remote authenticated user can send a specially crafted request to the application and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Citrix Netscaler ADC: before 12.1-55.302

Citrix NetScaler Gateway: before 13.0-92.21

---

External links
https://support.citrix.com/article/CTX584986

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.