Vulnerability identifier: #VU58630

Vulnerability risk: Low

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

CVE-ID: CVE-2021-26110

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FortiOS
Operating systems & Components / Operating system
FortiProxy
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Fortinet, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions in the autod daemon. A local user can bypass implemented security restrictions and escalate privileges on the systems to uper_admin via a specific crafted configuration of fabric automation CLI script and auto-script features.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiOS: 7.0.0, 6.4.0 - 6.4.6, 6.2.0 - 6.2.9, 6.0.0 - 6.0.12, 5.6.0 - 5.6.14

FortiProxy: 2.0.0 - 2.0.1, 1.2.0 - 1.2.9

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External links
http://www.fortiguard.com/psirt/FG-IR-20-131

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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