#VU29589 Permissions, Privileges, and Access Controls in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2020-8197

Vulnerability identifier: #VU29589

Vulnerability risk: Medium

CVSSv4.0: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-8197

CWE-ID: CWE-264

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 escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions. A remote user on the NSIP can gain elevated privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Citrix Netscaler ADC: 10.5 Build 67.10/67.13 - 12.1

Citrix NetScaler Gateway: 10.0 - 13.0.47.24

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External links
https://support.citrix.com/article/CTX276688

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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?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.