A vulnerability, which was classified as critical, has been found in fast-http on npm (version unknown). This issue affects the function fs.readFile of the file index.js. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

This affects all versions of package fast-http. There is no path sanitization in the path provided at fs.readFile in index.js.

The weakness was published 07/25/2020 (Website). The advisory is shared at snyk.io. The identification of this vulnerability is CVE-2020-7687 since 01/21/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

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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• NPM Package

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• fast-http

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