SB2023112008 - Multiple vulnerabilities in Fortinet FortiClient (Windows)

Description

This security bulletin contains information about 2 vulnerabilities.

1) Untrusted search path (CVE-ID: CVE-2023-41840)

CWE-ID: CWE-426 - Untrusted Search Path

CVSSv4: 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

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to usage of an untrusted search path. A local user can perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path.

2) Use of hard-coded credentials (CVE-ID: CVE-2023-33304)

CWE-ID: CWE-798 - Use of Hard-coded Credentials

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

The vulnerability allows a local user to gain full access to vulnerable system.

The vulnerability exists due to presence of hard-coded credentials in application code. A local administrator can access the affected system using the hard-coded credentials.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://fortiguard.com/psirt/FG-IR-23-274
• https://fortiguard.com/psirt/FG-IR-23-108