Enphase IQ Gateway prior 8.2.4225 URL Parameter path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Enphase IQ Gateway. Affected by this vulnerability is an unknown functionality of the component URL Parameter Handler. Performing a manipulation results in path traversal. This vulnerability is identified as CVE-2024-21876. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in Enphase IQ Gateway. This affects an unknown code of the component URL Parameter Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability via a URL parameter in Enphase IQ Gateway (formerly known as Envoy) allows an unautheticated attacker to access or create arbitratry files.This issue affects Envoy: from 4.x to 8.x and < 8.2.4225.

The weakness was released by Wietse Boonstra. It is possible to read the advisory at csirt.divd.nl. This vulnerability is uniquely identified as CVE-2024-21876 since 01/02/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/24/2024). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 8.2.4225 eliminates this vulnerability.

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Productinfo

Vendor

• Enphase

Name

• IQ Gateway

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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