PT-2021-23786 · Fortinet · Forticlient

Published 2021-12-09 · Updated 2021-12-10 · CVE-2021-43204

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Fortinet FortiClientWindows versions 6.4.1 through 6.4.0 Fortinet FortiClientWindows version 6.2.9 and earlier Fortinet FortiClientWindows version 6.0.10 and earlier

Description The issue is related to improper control of a resource through its lifetime, allowing an attacker to cause a complete denial of service of its components via changes of directory access permissions.

Recommendations For versions 6.4.1 and 6.4.0, update to a version that fixes the issue. For version 6.2.9 and earlier, update to a version that fixes the issue. For version 6.0.10 and earlier, update to a version that fixes the issue. As a temporary workaround, consider restricting access to the affected components to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2021-43204

Affected Products

Forticlient

References · 5

• https://fortiguard.com/advisory/FG-IR-21-167 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43204 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43204 · Security Note
• https://t.me/cvenotify/24522 · Telegram Post
• https://t.me/cvenotify/24449 · Telegram Post