Vulnerability identifier: #VU46990

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-8207

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Citrix Workspace for Windows
Server applications / Remote management servers, RDP, SSH

Vendor: Citrix

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists within the automatic update service due to improper verification of data authenticity when installing updates. A remote attacker can execute arbitrary application on the system with elevated privileges.

Successful exploitation of the vulnerability requires that Windows file sharing (SMB) is enabled on the affected system and the updater service is running.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Citrix Workspace for Windows: 1808 - 2006.1

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External links
http://support.citrix.com/article/CTX277662

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.