Multiple vulnerabilities in FortiNAC

Published: 2023-02-19 | Updated: 2023-05-07

Risk	Critical
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2022-39952 CVE-2022-40677 CVE-2022-40678
CWE-ID	CWE-73 CWE-78 CWE-522
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software	FortiNAC Server applications / IDS/IPS systems, Firewalls and proxy servers
Vendor	Fortinet, Inc

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) External Control of File Name or Path

EUVDB-ID: #VU72373

Risk: Critical

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2022-39952

CWE-ID: CWE-73 - External Control of File Name or Path

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to application allows an attacker to control path of the files to write within the keyUpload scriptlet. A remote non-authenticated attacker can send a specially crafted HTTP request and upload arbitrary files to the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiNAC: 8.3.7 - 9.4.0

CPE2.3

External links

https://fortiguard.com/psirt/FG-IR-22-300

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) OS Command Injection

EUVDB-ID: #VU72372

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-2022-40677

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the FortiNAC webserver. A remote privileged user can pass specially crafted data to the application and execute arbitrary OS commands on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiNAC: 8.3.7 - 9.4.0

CPE2.3

External links

https://fortiguard.com/psirt/FG-IR-22-280

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

3) Insufficiently protected credentials

EUVDB-ID: #VU72367

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-40678

CWE-ID: CWE-522 - Insufficiently Protected Credentials

Exploit availability: No

Description

The vulnerability allows a local user to recover passwords from database.

The vulnerability exists due to FortiNAC stores users' passwords in an insecure way. A local user with access to the database can recover passwords and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiNAC: 8.3.7 - 9.4.0

CPE2.3

External links

https://fortiguard.com/psirt/FG-IR-22-265

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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