A vulnerability classified as critical has been found in npm 5.7.0 2018-02-21 pre-release (Software Library). Affected is some unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.

The bug was discovered 02/23/2018. The weakness was shared 02/22/2018 (Website). The advisory is shared for download at blog.npmjs.org. This vulnerability is traded as CVE-2018-7408 since 02/22/2018. The attack needs to be approached locally. A authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

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

The entries VDB-110339, VDB-110702, VDB-157723 and VDB-186651 are related to this item.

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• Software Library

Name

• npm

Version

• 5.7.0 2018-02-21 pre-release

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• open-source

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