#VU22314 OS Command Injection in FortiExtender - CVE-2019-15710

Vulnerability identifier: #VU22314

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-15710

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiExtender
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Fortinet, Inc

Description

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

The vulnerability exists due to insufficient processing of user supplied input within the FortiExtender CLI. A remote authenticated user can inject and execute arbitrary system level commands via a specially crafted "execute date" command.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiExtender: 4.0.0 - 4.0.1, 4.1.0 - 4.1.1

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External links
https://fortiguard.com/psirt/FG-IR-19-273

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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.