CVE-2024-21762FortinetFirewall and VPNFebruary 9, 2024

Fortinet FortiOS Out-of-Bound Write Vulnerability

Critical 9.8Actively exploitedUsed by ransomware

Description

Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Details

Vendor
Fortinet
Product
FortiOS
CVE
CVE-2024-21762
Affected versions
FortiOS 7.4: from 7.4.0 to 7.4.2
FortiOS 7.2: from 7.2.0 to 7.2.6
FortiOS 7.0: from 7.0.0 to 7.0.13
FortiOS 6.4: from 6.4.0 to 6.4.14
FortiOS 6.2: from 6.2.0 to 6.2.15
FortiOS 6.0: from 6.0.0 to 6.0.18
FortiProxy 7.4: from 7.4.0 to 7.4.2
FortiProxy 7.2: from 7.2.0 to 7.2.8
FortiProxy 7.0: from 7.0.0 to 7.0.14
FortiProxy 2.0: from 2.0.0 to 2.0.13
FortiProxy 1.2: from 1.2.1 to 1.2.13
FortiProxy 01.02: 01.02.00
FortiProxy 1.1: from 1.1.4 to 1.1.6
FortiProxy 01.01: from 01.01.00 to 01.01.03
FortiProxy 01.00: from 01.00.00 to 01.00.07 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
9.8
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
February 16, 2024 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
February 9, 2024

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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