Denial of service in FortiOS and FortiProxy admin API

1) Access of Uninitialized Pointer

EUVDB-ID: #VU77179

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-29178

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to access to an uninitialized pointer within the administrative API interface. A remote user repeatedly send crafted HTTP or HTTPS requests to the API to crash the httpsd process.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiOS: 6.0.0 - 7.2.4

FortiProxy: 1.1.0 - 7.2.3

CPE2.3

• cpe:2.3:o:fortinet:fortios:6.0.17:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:6.2.15:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:6.4.13:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.11:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:1.1.6:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:1.2.13:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:2.0.12:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.0.9:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.2.3:*:*:*:*:*:*:*

External links

https://fortiguard.fortinet.com/psirt/FG-IR-23-095

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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