Path traversal in FortiOS - CVE-2018-13379
Published: May 27, 2019 / Updated: November 29, 2024
Vulnerability identifier: #VU18609
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2018-13379
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Fortinet, Inc
Affected software:
FortiOS
FortiOS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A remote non-authenticated attacker can send a specially crafted HTTP request and download arbitrary file from FortiOS SSL VPN web portal.
How to mitigate CVE-2018-13379
Install updates from vendor's website.
As a temporary solution, disable the SSL-VPN web portal service by applying the following CLI commands:
config vpn ssl settings
unset source-interface
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