SB2023050444 - Multiple vulnerabilities in FortiADC

Description

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection (CVE-ID: CVE-2023-27999)

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

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 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.

2) Path traversal (CVE-ID: CVE-2023-27993)

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

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

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.

Remediation

Install update from vendor's website.

References

• https://fortiguard.com/psirt/FG-IR-22-297
• https://fortiguard.com/psirt/FG-IR-23-069