#VU83249 OS Command Injection in FortiSIEM - CVE-2023-36553

Vulnerability identifier: #VU83249

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-36553

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiSIEM
Server applications / DLP, anti-spam, sniffers

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 in FortiSIEM report server. A remote unauthenticated attacker can send a specially crafted API request to the system 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

FortiSIEM: 4.7.2 - 5.4.0

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External links
https://fortiguard.com/psirt/FG-IR-23-135

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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.