Fortinet FortiOS/FortiProxy/FortiSwitchManager HTTP Request path traversal

Summaryinfo

A vulnerability described as very critical has been identified in Fortinet FortiOS, FortiProxy and FortiSwitchManager. Affected is an unknown function of the component HTTP Request Handler. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2022-41335. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Fortinet FortiOS, FortiProxy and FortiSwitchManager (Firewall Software) (unknown version) and classified as very critical. Affected by this issue is an unknown code block of the component HTTP Request Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A relative path traversal vulnerability [CWE-23] in Fortinet FortiOS version 7.2.0 through 7.2.2, 7.0.0 through 7.0.8 and before 6.4.10, FortiProxy version 7.2.0 through 7.2.1, 7.0.0 through 7.0.7 and before 2.0.10, FortiSwitchManager 7.2.0 and before 7.0.0 allows an authenticated attacker to read and write files on the underlying Linux system via crafted HTTP requests.

The weakness was presented 02/16/2023. The advisory is available at fortiguard.com. This vulnerability is handled as CVE-2022-41335 since 09/23/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/16/2023). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

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

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Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiOS
• FortiProxy
• FortiSwitchManager

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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CPE 2.2info

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