Fortinet FortiOS up to 6.4.15/7.0.16/7.2.8/7.4.4 SSLVPN Web Portal out-of-bounds

Summaryinfo

A vulnerability identified as problematic has been detected in Fortinet FortiOS up to 6.4.15/7.0.16/7.2.8/7.4.4. This affects an unknown part of the component SSLVPN Web Portal. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2024-36504. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Fortinet FortiOS up to 6.4.15/7.0.16/7.2.8/7.4.4. Affected by this vulnerability is some unknown functionality of the component SSLVPN Web Portal. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

An out-of-bounds read vulnerability [CWE-125] in FortiOS SSLVPN web portal versions 7.4.0 through 7.4.4, versions 7.2.0 through 7.2.8, 7.0 all verisons, and 6.4 all versions may allow an authenticated attacker to perform a denial of service on the SSLVPN web portal via a specially crafted URL.

The advisory is shared at fortiguard.fortinet.com. This vulnerability is known as CVE-2024-36504 since 05/29/2024. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 214084 (Fortinet Fortigate SSLVPN DOS (FG-IR-23-473)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (214084). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiOS

Version

• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.4.5
• 6.4.6
• 6.4.7
• 6.4.8
• 6.4.9
• 6.4.10
• 6.4.11
• 6.4.12
• 6.4.13
• 6.4.14
• 6.4.15
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 7.0.14
• 7.0.15
• 7.0.16
• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.2.6
• 7.2.7
• 7.2.8
• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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