#VU100450 Improper access control in FortiAnalyzer and FortiAnalyzer BigData - CVE-2023-44255

Vulnerability identifier: #VU100450

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-44255

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiAnalyzer
Server applications / IDS/IPS systems, Firewalls and proxy servers
FortiAnalyzer BigData
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote privileged user can send a specially crafted HTTP request and read event logs of another adom.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiAnalyzer: 6.2.0 - 6.2.13, 6.4.0 - 6.4.15, 7.0.0 - 7.0.13, 7.2.0 - 7.2.8, 7.4.0 - 7.4.2

FortiAnalyzer BigData: 6.2.1 - 7.2.4

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External links
https://fortiguard.fortinet.com/psirt/FG-IR-23-267

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.