PT-2021-3592 · Fortinet · Forticlient

Brsn · Published 2021-06-05 · Updated 2022-03-30 · CVE-2021-26089

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions FortiClient for Mac versions 6.4.3 and below

Description The issue is related to an improper symlink following in FortiClient for Mac, which may allow a non-privileged user to execute arbitrary privileged shell commands during the installation phase. This could potentially enable an attacker to run arbitrary code.

Recommendations For FortiClient for Mac versions 6.4.3 and below, consider updating to a version above 6.4.3 to resolve the issue. As a temporary workaround, restrict access to the installation phase to minimize the risk of exploitation.

Fix

Link Following

Weakness Enumeration

CWE-61

CWE-59

Related Identifiers

BDU:2021-03696

CVE-2021-26089

ZDI-21-693

ZDI-22-078

Affected Products

Forticlient

References · 8

• https://zerodayinitiative.com/advisories/ZDI-22-078 · Security Note
• https://fortiguard.com/advisory/FG-IR-21-022 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26089 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-693 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26089 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03696 · Security Note
• https://t.me/cvenotify/25554 · Telegram Post
• https://t.me/cvenotify/17448 · Telegram Post