CVE-2018-13379

An Improper Limitation of a Pathname to a Restricted Directory ("Path Traversal") in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to download system files via special crafted HTTP resource requests.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - psirt@fortinet.com

Published

2019-06-04

Last modified

2025-10-21

Known exploited (CISA KEV)

since 2021-11-03, action due 2022-05-03: Apply updates per vendor instructions.

Weaknesses

CWE-22

Affected products

• Fortinet Fortios (Fortinet)
• Fortios (Fortinet)
• Fortiproxy (Fortinet)

References

• https://fortiguard.com/advisory/FG-IR-18-384
• https://www.fortiguard.com/psirt/FG-IR-20-233
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13379