Fortinet FortiOS and FortiADC Improper Access Control Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

MEDIUM

4.3 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation Likelihood

EPSS Prediction

1.54 %

Predictive Probability

Percentile Rank

81.0 th

Documented as more likely to be exploited than 81.0% of known CVEs.

Detection Date

Sep 08, 2022

Remediation Due

Sep 29, 2022

CISA Catalog Active

Threat Analysis

Fortinet FortiOS and FortiADC contain an improper access control vulnerability that allows attackers to obtain the LDAP server login credentials configured in FortiGate by pointing a LDAP server connectivity test request to a rogue LDAP server.

Remediation Directive

Apply updates per vendor instructions.

Asset Context

Vendor Identity

Fortinet

Affected Product

FortiOS and FortiADC

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-732

External Intelligence

https://www.fortiguard.com/psirt/FG-IR-18-157

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2018-13374