CVE-2018-13382 : An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 and Forti

An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 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 modify the password of an SSL VPN web portal user via specially crafted HTTP requests

Published 2019-06-04 21:29:00

Updated 2024-07-24 17:00:11

Source Fortinet, Inc.

View at NVD, CVE.org

CVE-2018-13382 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 and FortiProxy Improper Authorization

CISA required action:

Apply updates per vendor instructions.

CISA description:

An Improper Authorization vulnerability in Fortinet FortiOS and FortiProxy under SSL VPN web portal allows an unauthenticated attacker to modify the password.

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2018-13382

Added on 2022-01-10 Action due date 2022-07-10

Exploit prediction scoring system (EPSS) score for CVE-2018-13382

EPSS FAQ

66.62%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 98 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-13382

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST	2024-07-24
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
9.1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	3.9	5.2	Fortinet, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2018-13382

CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Assigned by: nvd@nist.gov (Primary)

CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.