#VU88233 Insufficiently protected credentials in FortiOS and FortiProxy - CVE-2023-41677

Vulnerability identifier: #VU88233

Vulnerability risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-41677

CWE-ID: CWE-522

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiOS
Operating systems & Components / Operating system
FortiProxy
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficiently protected credentials. A remote attacker can trick the victim to visit a specially crafted website through the SSL-VPN and obtain the administrator cookie.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiOS: 6.0.0 - 6.0.18, 6.2.0 - 6.2.15, 6.4.0 - 6.4.14, 7.0.0 - 7.0.12, 7.2.0 - 7.2.6, 7.4.0 - 7.4.1

FortiProxy: 1.0.0 - 1.0.7, 1.1.0 - 1.1.6, 1.2.0 - 1.2.13, 2.0.0 - 2.0.14, 7.0.0 - 7.0.13, 7.2.0 - 7.2.7, 7.4.0 - 7.4.1

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External links
https://www.fortiguard.com/psirt/FG-IR-23-493

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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.