VDB-176244 · CVE-2021-24012 · FG-IR-21-018

Fortinet FortiGate up to 6.4.4 SSLVPN certificate validation

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.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Fortinet FortiGate 6.4.0/6.4.1/6.4.2/6.4.3/6.4.4. This affects an unknown part of the component SSLVPN. The manipulation results in certificate validation. This vulnerability is cataloged as CVE-2021-24012. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Fortinet FortiGate 6.4.0/6.4.1/6.4.2/6.4.3/6.4.4 (Firewall Software). It has been classified as critical. Affected is an unknown code block of the component SSLVPN. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 06/02/2021 as FG-IR-21-018. The advisory is shared for download at fortiguard.com. This vulnerability is traded as CVE-2021-24012. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability scanner Nessus provides a plugin with the ID 209719 (Fortinet Fortigate (FG-IR-21-018)), 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 (209719). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Fortinet

Name

FortiGate

Version

License

commercial

Website

Vendor: https://www.fortinet.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 209719
Nessus Name: Fortinet Fortigate (FG-IR-21-018)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/13/2021 🔍
06/02/2021 +139 days 🔍
06/02/2021 +0 days 🔍
10/26/2024 +1242 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-21-018
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-24012 (🔍)
GCVE (CVE): GCVE-0-2021-24012
GCVE (VulDB): GCVE-100-176244

Entryinfo

Created: 06/02/2021 22:31
Updated: 10/26/2024 22:07
Changes: 06/02/2021 22:31 (38), 06/05/2021 14:49 (3), 06/05/2021 14:54 (1), 10/26/2024 22:07 (16)
Complete: 🔍
Cache ID: 216::103