#VU58180 Improper access control in FortiManager - CVE-2021-26107

Vulnerability identifier: #VU58180

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-26107

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

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

Vendor: Fortinet, Inc

Description

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

The vulnerability exists due to improper access restrictions. A remote authenticated attacker can modify the VPN tunnel status of other VDOMs using VPN Manager.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiManager: 6.4.4 - 6.4.5

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External links
https://fortiguard.com/advisory/FG-IR-21-043
https://www.fortiguard.com/psirt?date=11-2021&risk=3

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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.