SB2021071407 - Multiple vulnerabilities in Fortinet FortiSandbox

Description

This security bulletin contains information about 2 vulnerabilities.

1) Race condition (CVE-ID: CVE-2020-29014)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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

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

The vulnerability exists due to a race condition in the command shell of FortiSandbox. A remote user can exploit the race by sending sequences of commands and perform a denial of service attack.

2) OS Command Injection (CVE-ID: CVE-2021-22125)

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

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

The vulnerability allows a remote administrator to escalate privileges on the system.

The vulnerability exists due to improper input validation in FortiSandbox sniffer module. A remote privileges user can alter contents of module configuration file and execute arbitrary OS commands.

Remediation

Install update from vendor's website.

References

• https://fortiguard.com/advisory/FG-IR-20-185
• https://www.fortiguard.com/psirt/FG-IR-21-005