PT-2022-4999 · Fortinet · Fortios

Published 2022-10-10 · Updated 2022-10-12 · CVE-2021-44171

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FortiOS versions 6.0.0 through 6.0.14 FortiOS versions 6.2.0 through 6.2.10 FortiOS versions 6.4.0 through 6.4.8 FortiOS versions 7.0.0 through 7.0.3

Description The issue is related to an improper neutralization of special elements used in an os command, which allows an attacker to execute privileged commands on a linked FortiSwitch via diagnostic CLI commands. This can be exploited by an authenticated attacker.

Recommendations For FortiOS versions 6.0.0 through 6.0.14, update to a version outside of this range to mitigate the risk. For FortiOS versions 6.2.0 through 6.2.10, update to a version outside of this range to mitigate the risk. For FortiOS versions 6.4.0 through 6.4.8, update to a version outside of this range to mitigate the risk. For FortiOS versions 7.0.0 through 7.0.3, update to a version outside of this range to mitigate the risk. As a temporary workaround, consider restricting access to diagnostic CLI commands until a patch is available.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2022-06211

CVE-2021-44171

Affected Products

Fortios

References · 7

• https://osv.dev/vulnerability/CVE-2021-44171 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44171 · Security Note
• https://fortiguard.com/psirt/FG-IR-21-242 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06211 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-44171 · Security Note
• https://fortiguard.fortinet.com/psirt/FG-IR-21-242 · Note
• https://t.me/cibsecurity/51062 · Telegram Post