PT-2017-3709 · Fortinet · Fortios

Published 2017-11-23 · Updated 2019-05-29 · CVE-2017-14186

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: FortiOS versions 5.4 and below FortiOS versions 5.6.0 through 5.6.7 FortiOS versions 6.0.0 through 6.0.4

Description: The issue is caused by insufficient protection of the web page structure in the FortiOS web portal. It allows a remote attacker to inject arbitrary JavaScript or HTML code using a specially crafted redir parameter value. This can lead to a Cross-site Scripting (XSS) attack or a URL Redirection attack by injecting an external URL via the affected parameter.

Recommendations: For FortiOS versions 5.4 and below, update to a version above 5.4 to mitigate the risk. For FortiOS versions 5.6.0 through 5.6.7, update to a version above 5.6.7 to mitigate the risk. For FortiOS versions 6.0.0 through 6.0.4, update to a version above 6.0.4 to mitigate the risk. As a temporary workaround, consider restricting access to the redir parameter in the SSL VPN web portal to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2018-01279

CVE-2017-14186

Affected Products

Fortios

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2017-14186 · Security Note
• https://fortiguard.com/advisory/FG-IR-17-242 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-01279 · Security Note
• https://osv.dev/vulnerability/CVE-2017-14186 · Vendor Advisory
• https://securityfocus.com/bid/101955 · Note
• http://securitytracker.com/id/1039891 · Note
• https://fortiguard.com/psirt/FG-IR-17-242 · Note
• http://securityfocus.com/bid/101955 · Note