#VU61900 Use of hard-coded credentials in FortiWAN - CVE-2021-26113

Vulnerability identifier: #VU61900

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-26113

CWE-ID: CWE-798

Exploitation vector: Network

Exploit availability: No

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

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to recover hashed passwords of other users.

The vulnerability exists due to usage of a hard-coded salt in FortiWAN. An attacker who has previously come in possession of the password file can recover victim's password.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiWAN: 4.5.0 - 4.5.8

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External links
https://fortiguard.fortinet.com/psirt/FG-IR-21-064

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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