Vulnerability identifier: #VU68102

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-33873

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiTester
Server applications / Other server solutions

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the Console, Telnet, and SSH login components. A remote unauthenticated attacker can send a specially crafted request to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiTester: 2.9.0, 2.8.0, 2.7.0, 2.5.0, 2.4.0 - 2.4.1, 2.3.0, 3.9.0 - 3.9.1, 3.7.0 - 3.7.1, 3.6.0, 3.4.0, 3.3.0 - 3.3.1, 3.2.0, 3.1.0, 3.0.0, 3.8.0, 4.2.0, 4.1.0 - 4.1.1, 4.0.0, 7.1.0, 7.0.0

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External links
http://fortiguard.fortinet.com/psirt/FG-IR-22-237

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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.