Vulnerability identifier: #VU64736

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28054

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
VShell
Server applications / Remote management servers, RDP, SSH

Vendor: Van Dyke Technologies

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when a trigger action is configured to run a script. A remote user can pass a specially crafted value to the trigger and execute arbitrary commands on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VShell: 4.0.5 - 4.6.2

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External links
http://www.vandyke.com/support/advisory/2022/02/remote-execution-via-triggers.html

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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.