Remote code execution in FortiOS and FortiProxy sslvpnd
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-22640 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
FortiOS Operating systems & Components / Operating system FortiProxy Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU75734
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-22640
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to a boundary error in sslvpnd. A remote authenticated user can send a specially crafted request to trigger an out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsFortiOS: 6.0.0 - 7.2.3
FortiProxy: 1.0.0 - 7.2.1
CPE2.3- cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:6.2.13:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:6.0.16:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:6.4.11:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:2.0.12:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:7.2.1:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:7.0.7:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:1.2.13:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:1.1.6:*:*:*:*:*:*:*
- cpe:2.3:h:fortinet:fortiproxy:1.0.7:*:*:*:*:*:*:*
http://fortiguard.com/psirt/FG-IR-22-475
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.
