Fortinet FortiWeb up to 7.0.10/7.2.10/7.4.6 syntactically invalid structure

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 (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Fortinet FortiWeb up to 7.0.10/7.2.10/7.4.6. This impacts an unknown function. The manipulation results in improper handling of syntactically invalid structure. This vulnerability was named CVE-2024-55594. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Fortinet FortiWeb up to 7.0.10/7.2.10/7.4.6. Affected is an unknown functionality. The manipulation with an unknown input leads to a improper handling of syntactically invalid structure vulnerability. CWE is classifying the issue as CWE-228. The product does not handle or incorrectly handles input that is not syntactically well-formed with respect to the associated specification. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An improper handling of syntactically invalid structure in Fortinet FortiWeb at least vesrions 7.4.0 through 7.4.6 and 7.2.0 through 7.2.10 and 7.0.0 through 7.0.10 allows attacker to execute unauthorized code or commands via HTTP/S crafted requests.

The advisory is shared for download at fortiguard.fortinet.com. This vulnerability is traded as CVE-2024-55594 since 12/09/2024. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 232624 (Fortinet FortiWeb Web application firewall rules bypass by using an empty filename (FG-IR-23-115)), 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 (232624). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 5.6
CNA Vector (fortinet): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper handling of syntactically invalid structure
CWE: CWE-228 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 232624
Nessus Name: Fortinet FortiWeb Web application firewall rules bypass by using an empty filename (FG-IR-23-115)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/09/2024 🔍
03/14/2025 +95 days 🔍
03/14/2025 +0 days 🔍
07/25/2025 +132 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-23-115
Status: Confirmed

CVE: CVE-2024-55594 (🔍)
GCVE (CVE): GCVE-0-2024-55594
GCVE (VulDB): GCVE-100-299748

Entryinfo

Created: 03/14/2025 18:02
Updated: 07/25/2025 01:08
Changes: 03/14/2025 18:02 (62), 03/14/2025 18:10 (2), 07/25/2025 01:08 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!