QID 44144

Date Published: 2024-01-16

QID 44144: FortiOS Denial of Service (DoS) Vulnerability (FG-IR-19-236)

An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS and FortiProxy may allow an unauthenticated remote attacker to crash the SSL VPN service by sending a crafted POST request.

Affected Versions:
FortiOS versions 6.2.1 and below
FortiOS versions 6.0.6 and below

QID Detection Logic (Authenticated):
Detection checks for vulnerable version of FortiOS.

QID Detection Logic (Unauthenticated):
Detection checks for vulnerable version of FortiOS via SNMP Banner.

Successful exploit may allow an unauthenticated remote attacker to crash the SSL VPN service by sending a crafted POST request

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Vendor has released fixes to address this vulnerability
For more details refer advisory FG-IR-19-236

Vendor References

FG-IR-19-236 - www.fortiguard.com/psirt/FG-IR-19-236

CVEs related to QID 44144

CVE-2019-15705 |

Software Advisories

Advisory ID	Software	Component	Link
FG-IR-19-236			www.fortiguard.com/psirt/FG-IR-19-236

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