CVE-2018-13382

Status: AnalyzedHigh (7.5)⚠ Active exploitation

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

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 82%
Percentile among all scored CVEs: 100
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

Added to catalog: 1/10/2022
Remediation due date: 7/10/2022
Known ransomware use: Known

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access95 %
Primary impactT1078 Valid Accountsstealth · persistence · privilege escalation · initial access90 %
Secondary impactT1098.001 Additional Cloud Credentialspersistence · privilege escalation85 %

Vulnerabilidad de autorización impropia (CWE-863) en portal SSL VPN de Fortinet accesible sin autenticación (AV:N, PR:N) permite modificar credenciales de usuario, facilitando acceso no autorizado e impersonación de cuentas.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management User Account Management Network Segmentation Multi-factor Authentication Application Developer Guidance Active Directory Configuration

Affected technologies (2)

Fortinet — Fortios Fortinet — Fortiproxy

CWEs

CWE-863
CWE-863

References

Raw JSON (NVD)

Show

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