Multiple vulnerabilities in FortiADC

Published: 2023-05-04

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-27999 CVE-2023-27993
CWE-ID	CWE-78 CWE-22
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	FortiADC Server applications / Other server solutions
Vendor	Fortinet, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection

EUVDB-ID: #VU75736

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-27999

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A local user attacker can execute unauthorized commands via specifically crafted arguments to existing commands.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiADC: 7.1.0 - 7.2.0

External links

http://fortiguard.com/psirt/FG-IR-22-297

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.

2) Path traversal

EUVDB-ID: #VU75735

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-27993

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a local user to delete arbitrary directories.

The vulnerability exists due to input validation error when processing directory traversal sequences in CLI. A local user can execute a specially crafted CLI command and delete arbitrary directories on the system.