Vulnerability Details : CVE-2018-13379

Public exploit exists!
Used for ransomware!
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.
Published 2019-06-04 21:29:00
Updated 2024-07-25 14:09:55
Source Fortinet, Inc.
View at NVD,   CVE.org
Vulnerability category: Directory traversal

CVE-2018-13379 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Fortinet FortiOS SSL VPN Path Traversal Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Fortinet FortiOS SSL VPN web portal contains a path traversal vulnerability that may allow an unauthenticated attacker to download FortiOS system files through specially crafted HTTP resource requests.
Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2018-13379

EPSS FAQ
96.86%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2018-13379

  • FortiOS Path Traversal Credential Gatherer
    First seen: 2021-03-12
    auxiliary/gather/fortios_vpnssl_traversal_creds_leak
    Fortinet FortiOS versions 5.4.6 to 5.4.12, 5.6.3 to 5.6.7 and 6.0.0 to 6.0.4 are vulnerable to a path traversal vulnerability within the SSL VPN web portal which allows unauthenticated attackers to download FortiOS system files through specially crafted HTTP

CVSS scores for CVE-2018-13379

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
 NIST
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST
9.1
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.9
5.2
 Fortinet, Inc.

CWE ids for CVE-2018-13379

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-13379

Products affected by CVE-2018-13379

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