VDB-108711 · CVE-2017-14182 · BID 101559

Fortinet FortiOS up to 5.4.5 Web API params input 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.
5.1	$0-$5k	0.00

A vulnerability classified as problematic has been found in Fortinet FortiOS up to 5.4.5 (Firewall Software). This affects an unknown functionality of the component Web API. The manipulation of the argument params as part of a Parameter leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

A Denial of Service (DoS) vulnerability in Fortinet FortiOS 5.4.0 to 5.4.5 allows an authenticated user to cause the web GUI to be temporarily unresponsive, via passing a specially crafted payload to the 'params' parameter of the JSON web API.

The bug was discovered 10/24/2017. The weakness was released 10/27/2017 (Website). It is possible to read the advisory at fortiguard.com. This vulnerability is uniquely identified as CVE-2017-14182 since 09/07/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 104352 (Fortinet FortiOS 5.4.x < 5.4.6 Denial of Service (FG-IR-17-206)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104352).

Productinfo

Type

Firewall Software

Vendor

Fortinet

Name

FortiOS

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

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: 104352
Nessus Name: Fortinet FortiOS 5.4.x < 5.4.6 Denial of Service (FG-IR-17-206)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/07/2017 🔍
10/24/2017 +46 days 🔍
10/24/2017 +0 days 🔍
10/24/2017 +0 days 🔍
10/27/2017 +3 days 🔍
10/27/2017 +0 days 🔍
10/28/2017 +1 days 🔍
11/02/2017 +5 days 🔍
01/21/2021 +1176 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: fortiguard.com
Researcher: Cody
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14182 (🔍)
SecurityTracker: 1039678
SecurityFocus: 101559

Entryinfo

Created: 10/28/2017 10:28
Updated: 01/21/2021 07:03
Changes: 10/28/2017 10:28 (67), 12/01/2019 15:59 (4), 01/21/2021 06:56 (3), 01/21/2021 07:03 (3)
Complete: 🔍