Fortinet FortiSandbox up to 4.2.6/4.4.4 HTTP Request client-side enforcement of server-side security

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Fortinet FortiSandbox up to 4.2.6/4.4.4 and classified as very critical. The impacted element is an unknown function of the component HTTP Request Handler. This manipulation causes client-side enforcement of server-side security. This vulnerability is tracked as CVE-2024-31491. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Fortinet FortiSandbox up to 4.2.6/4.4.4. It has been declared as very critical. Affected by this vulnerability is an unknown part of the component HTTP Request Handler. The manipulation with an unknown input leads to a client-side enforcement of server-side security vulnerability. The CWE definition for the vulnerability is CWE-602. The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A client-side enforcement of server-side security vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.4, FortiSandbox 4.2.1 through 4.2.6 allows attacker to execute unauthorized code or commands via HTTP requests.

The advisory is shared at fortiguard.com. This vulnerability is known as CVE-2024-31491 since 04/04/2024. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/14/2026).

Upgrading eliminates this vulnerability.

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.7

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (Fortinet, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Client-side enforcement of server-side security
CWE: CWE-602
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/04/2024 🔍
05/14/2024 +40 days 🔍
05/14/2024 +0 days 🔍
01/14/2026 +610 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-24-054
Status: Confirmed

CVE: CVE-2024-31491 (🔍)
GCVE (CVE): GCVE-0-2024-31491
GCVE (VulDB): GCVE-100-264337

Entryinfo

Created: 05/14/2024 20:04
Updated: 01/14/2026 18:13
Changes: 05/14/2024 20:04 (63), 01/02/2025 19:45 (11), 01/14/2026 18:13 (1)
Complete: 🔍
Cache ID: 216::103

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

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