VDB-156778 · CVE-2019-17655 · FG-IR-19-217

Fortinet FortiOS up to 6.2.2 SSL VPN cleartext storage in file

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.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Fortinet FortiOS up to 6.2.2. It has been declared as problematic. The affected element is an unknown function of the component SSL VPN. Executing a manipulation can lead to cleartext storage in file. This vulnerability appears as CVE-2019-17655. The attack requires local access. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Fortinet FortiOS up to 6.2.2 (Firewall Software). It has been declared as problematic. This vulnerability affects some unknown processing of the component SSL VPN. The manipulation with an unknown input leads to a cleartext storage in file vulnerability. The CWE definition for the vulnerability is CWE-313. The product stores sensitive information in cleartext in a file, or on disk. As an impact it is known to affect confidentiality. CVE summarizes:

A cleartext storage in a file or on disk (CWE-313) vulnerability in FortiOS SSL VPN 6.2.2 and below may allow an attacker to retrieve a logged-in SSL VPN user's credentials should that attacker be able to read the session file stored on the targeted device's system.

The weakness was presented 06/16/2020 as FG-IR-19-217 (Website). The advisory is available at blog.orange.tw. This vulnerability was named CVE-2019-17655 since 10/16/2019. Local access is required to approach this attack. Required for exploitation is a single authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1555 by the MITRE ATT&CK project.

Upgrading to version 6.2.3 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Firewall Software

Vendor

Fortinet

Name

FortiOS

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: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cleartext storage in file
CWE: CWE-313 / CWE-312 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FortiOS 6.2.3

Timelineinfo

10/16/2019 🔍
06/16/2020 +244 days 🔍
06/17/2020 +1 days 🔍
06/17/2020 +0 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-19-217
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-17655 (🔍)
GCVE (CVE): GCVE-0-2019-17655
GCVE (VulDB): GCVE-100-156778

Entryinfo

Created: 06/17/2020 06:40
Updated: 06/17/2020 09:32
Changes: 06/17/2020 06:40 (42), 06/17/2020 09:32 (18)
Complete: 🔍
Cache ID: 216::103