Vulnerability CVE-2018-7408


Published: 2018-02-22

Description:
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.

Type:

CWE-732

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Npmjs -> NPM 

 References:
http://blog.npmjs.org/post/171169301000/v571
https://github.com/npm/npm/commit/74e149da6efe6ed89477faa81fef08eee7999ad0
https://github.com/npm/npm/issues/19883

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