VDB-110705 · CVE-2017-7344 · BID 102176

Fortinet FortiClient up to 5.4.3/5.5.x on Windows Security Alert access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Fortinet FortiClient up to 5.4.3/5.5.x on Windows. It has been rated as critical. Affected by this issue is some unknown functionality of the component Security Alert Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2017-7344. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fortinet FortiClient up to 5.4.3/5.5.x on Windows and classified as critical. This issue affects an unknown function of the component Security Alert Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0 allows attacker to gain privilege via exploiting the Windows "security alert" dialog thereby popping up when the "VPN before logon" feature is enabled and an untrusted certificate chain.

The bug was discovered 12/12/2017. The weakness was published 12/14/2017 (Website). The advisory is shared at fortiguard.com. The identification of this vulnerability is CVE-2017-7344 since 03/30/2017. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.4.4 or 5.6.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102176†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FortiClient 5.4.4/5.6.0

Timelineinfo

03/30/2017 🔍
12/12/2017 +257 days 🔍
12/12/2017 +0 days 🔍
12/14/2017 +2 days 🔍
12/14/2017 +0 days 🔍
12/15/2017 +1 days 🔍
01/27/2021 +1139 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: fortiguard.com
Researcher: Clement NOTIN
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7344 (🔍)
GCVE (CVE): GCVE-0-2017-7344
GCVE (VulDB): GCVE-100-110705
SecurityFocus: 102176 - Fortinet FortiClient CVE-2017-7344 Privilege Escalation Vulnerability

Entryinfo

Created: 12/15/2017 08:16
Updated: 01/27/2021 12:07
Changes: 12/15/2017 08:16 (61), 12/15/2019 12:00 (4), 01/27/2021 12:07 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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