PT-2021-21169 · Fortinet · Fortiweb

Published 2021-12-08 · Updated 2021-12-10 · CVE-2021-36188

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Fortinet FortiWeb versions 6.4.1 and below Fortinet FortiWeb versions 6.3.15 and below

Description The issue is related to improper neutralization of input during web page generation, also known as cross-site scripting. This allows an attacker to execute unauthorized code or commands via crafted GET parameters in requests to login and error handlers.

Recommendations For Fortinet FortiWeb versions 6.4.1 and below, update to a version above 6.4.1 to resolve the issue. For Fortinet FortiWeb versions 6.3.15 and below, update to a version above 6.3.15 to resolve the issue. As a temporary workaround, consider restricting access to the login and error handlers to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-36188

Affected Products

Fortiweb

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-36188 · Security Note
• https://fortiguard.com/advisory/FG-IR-21-118 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36188 · Vendor Advisory
• https://t.me/cibsecurity/33619 · Telegram Post
• https://t.me/cvenotify/24437 · Telegram Post