VPN credentials disclosure in FortiClient for Windows and Linux

1) Cleartext storage of sensitive information

EUVDB-ID: #VU101831

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50570

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to JavaScript's garbage collector, which stores VPN credentials in clear text in memory. A local user can make memory dump and retrieve VPN password.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 7.0.0 - 7.4.1

FortiClient (Linux): 7.0.0 - 7.4.2

CPE2.3

• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.13:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:forticlient_linux:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:forticlient_linux:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:forticlient_linux:7.0.2:*:*:*:*:*:*:*

External links

https://fortiguard.fortinet.com/psirt/FG-IR-23-278

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.