Fortinet FortiClient up to 6.2.9/6.4.6/7.0.2 on Windows FortiESNAC Service path traversal

Summaryinfo

A vulnerability was found in Fortinet FortiClient up to 6.2.9/6.4.6/7.0.2 on Windows and classified as problematic. This impacts an unknown function of the component FortiESNAC Service. The manipulation results in path traversal. This vulnerability is known as CVE-2021-41031. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Fortinet FortiClient up to 6.2.9/6.4.6/7.0.2 on Windows. It has been classified as critical. Affected is an unknown code of the component FortiESNAC Service. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A relative path traversal vulnerability [CWE-23] in FortiClient for Windows versions 7.0.2 and prior, 6.4.6 and prior and 6.2.9 and below may allow a local unprivileged attacker to escalate their privileges to SYSTEM via the named pipe responsible for FortiESNAC service.

The weakness was published 07/19/2022. The advisory is shared for download at fortiguard.com. This vulnerability is traded as CVE-2021-41031 since 09/13/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Fortinet

Name

• FortiClient

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 6.2.9
• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.4.5
• 6.4.6
• 7.0.0
• 7.0.1
• 7.0.2

License

• free

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion