VDB-114803 · CVE-2017-14191 · BID 103430

Fortinet FortiWeb 5.6.0 Access Control Cookie access control

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.
6.4$0-$5k0.00

A vulnerability was found in Fortinet FortiWeb 5.6.0. It has been rated as critical. This issue affects an unknown part of the component Access Control. The manipulation as part of a Cookie leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An Improper Access Control vulnerability in Fortinet FortiWeb 5.6.0 and above under "Signed Security Mode", allows attacker to bypass the signed user cookie protection by removing the FortiWeb own protection session cookie. A fix is scheduled in upcoming FortiWeb v6.1.0.

The bug was discovered 03/06/2018. The weakness was presented 03/20/2018 (Website). It is possible to read the advisory at fortiguard.com. The identification of this vulnerability is CVE-2017-14191 since 09/07/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.1.0 eliminates this vulnerability.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FortiWeb 6.1.0

Timelineinfo

09/07/2017 🔍
03/06/2018 +180 days 🔍
03/06/2018 +0 days 🔍
03/20/2018 +14 days 🔍
03/20/2018 +0 days 🔍
03/21/2018 +1 days 🔍
02/05/2021 +1052 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: fortiguard.com
Researcher: Yavuz zdemir
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14191 (🔍)
SecurityFocus: 103430 - Fortinet Fortiweb CVE-2017-14191 Access Bypass Vulnerability

Entryinfo

Created: 03/21/2018 07:45
Updated: 02/05/2021 15:16
Changes: 03/21/2018 07:45 (61), 01/15/2020 08:43 (4), 02/05/2021 15:16 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!